OSRS Combat Calculator | Complete Old School RuneScape Guide
OSRS Combat Calculator
Old School RuneScape Combat Level Calculator — Free, Accurate & Instant
• 1 Def Pure: 1 Defence = lowest CB for max damage. Best low-level PvP bracket.
• Zerker: 45 Def unlocks Berserker helm + Fighter torso. Best PvP DPS at ~75 CB.
• Med Level: 70+ Def allows barrows gear. Best overall PvM versatility (CB 95–110).
• Piety: 70 Def + 70 Prayer + King's Ransom quest. +25% Melee accuracy & strength.
• Ranged Pure: 1 Def, 99 Ranged. Effective chinning in Wilderness (low CB bracket).
| CB Bracket | Build Type | Best Location |
|---|---|---|
| CB 3–20 | Starter PKs | GE steps, PvP worlds |
| CB 50–60 | Classic Pures | Edge PK, Multi |
| CB 70–80 | Zerkers | Rev caves, Chaos Altar |
| CB 90–100 | Med levels | Deep Wilderness |
| CB 110–126 | Maxed Mains | All Wilderness zones |
See how each skill level changes your combat level. Set your base stats, then pick the skill to analyze.
| Level | Combat Level | Change | Status |
|---|---|---|---|
| Select a skill above | |||
Combat Milestones
• 1–30 CB: Chickens/Cows (Lumbridge), Monks
• 30–60 CB: Barbarians, Hill Giants, Rock Crabs
• 60–80 CB: Nightmare Zone (P2P), Sand Crabs, Yaks
• 80–99 CB: Nightmare Zone (max points), Slayer tasks
• Fastest CB: Train Ranged or Magic — ×1.5 multiplier wins
| Boss / Content | Min CB | Rec CB | Status |
|---|
OSRS Combat Calculator — Complete Guide to Old School RuneScape Combat Level (2026)
Free, accurate OSRS combat level calculator with full formula breakdown, build presets, PvP range finder, training planner, and PvM requirements — all on one page.
Whether you're a new player asking "how to calculate combat level in OSRS," a PKer planning the perfect pure build, or a veteran optimizing a maxed main — this OSRS combat calculator and guide covers everything. Use the interactive tool above, then read the guide below for the full picture.
📋 Table of Contents
- What is the OSRS Combat Level?
- OSRS Combat Level Formula (Official)
- How Each Skill Affects Combat Level
- Popular Account Builds & Their Combat Levels
- PvP & Wilderness Range Calculator Guide
- Combat Training Guide & Optimization
- PvM Boss Requirements Guide
- Related OSRS Calculators
- Important Information & Key Facts
- FAQ — Frequently Asked Questions (20 Q&As)
What is the OSRS Combat Level?
In Old School RuneScape (OSRS), your combat level is a single number between 3 and 126 that summarizes your character's overall combat strength. It's derived from seven skills: Attack, Strength, Defence, Hitpoints, Prayer, Ranged, and Magic.
Combat level matters for:
read more: max hit calculator osrs- Wilderness PvP: Determines who can attack you and who you can attack
- NPC aggression: Many monsters stop being aggressive when you're more than double their combat level
- Grouping & community: It's the primary indicator of your account's progression
- Build planning: Essential for keeping a pure, zerker, or med level in the right PvP bracket
OSRS Combat Level Formula (Official)
The OSRS combat formula is the same formula used by Jagex's official game client. Understanding it lets you make smarter training and build decisions:
Worked Example: Typical Zerker Account
How Each Combat Skill Affects Your Combat Level
Our OSRS combat stats calculator shows the exact impact of every skill. Here's the quick reference:
| Skill Level | Att+Str CB contribution | Ranged CB contribution | Magic CB contribution | Def/HP CB contribution |
|---|---|---|---|---|
| Level 40 | +26 (combined) | +19.5 | +19.5 | +10 each |
| Level 60 | +39 (combined) | +29.25 | +29.25 | +15 each |
| Level 80 | +52 (combined) | +39 | +39 | +20 each |
| Level 99 | +64.35 (combined) | +48.26 | +48.26 | +24.75 each |
Popular OSRS Account Builds & Their Combat Levels
OSRS Pure Calculator — 1 Defence Pure Build
The OSRS pure build calculator is used for accounts that keep Defence at 1 permanently. This maximizes offensive power while staying in the lowest possible combat bracket. A fully trained pure looks like this:
| Skill | Typical Level | Reason |
|---|---|---|
| Attack | 60 | Dragon weapons access, stays low CB |
| Strength | 99 | Maximized max hit for KO potential |
| Defence | 1 | NEVER trained — defines a "pure" |
| Hitpoints | ~85 | Gained naturally through training |
| Prayer | 1–31 | Optional: Burst of Strength or Protect prayers |
| Typical CB | 55–68 | Lowest CB for maximum offensive output |
OSRS Zerker Calculator — 45 Defence Zerker Build
The OSRS zerker calculator is one of the most searched OSRS build tools. Zerkers maintain exactly 45 Defence to equip the Berserker helm (quest reward from Fremennik Trials) and Fighter torso (Barbarian Assault), both of which give exceptional offensive bonuses. Use our OSRS pking calculator to see exactly what combat level a zerker reaches.
OSRS Piety Calculator — 70 Defence + 70 Prayer Build
The OSRS piety calculator targets builds that unlock the Piety prayer, requiring 70 Defence + 70 Prayer plus completion of the King's Ransom quest. Piety grants +25% Melee accuracy, +23% Melee strength, and +25% Defence — arguably the strongest prayer buff in the game. Use our build calculator above to see the exact CB impact.
OSRS Med Level Calculator — 70-75 Defence Build
The OSRS med level calculator helps plan accounts in the CB 90–110 range. With 70+ Defence, a med level can equip barrows armor — one of the best defensive setups in the game. This is the most flexible all-around build for PvM, Slayer, and casual PvP.
genshin wish calculatorOSRS Max Combat Calculator — CB 126
| Build | Key Stats | CB Level | Best For |
|---|---|---|---|
| 1 Def Pure | 60A/99S/1D | 55–65 | Low CB PvP |
| Zerker Pure | 75A/99S/45D/52P | 74–78 | Berserker PvP |
| Ranged Pure | 1D/99Rng | 55–65 | Chinning, PvP |
| Mage Pure | 1D/99Mag | 55–65 | Rushes, PvP |
| Med Level | 75A/99S/70D/70+all | 95–105 | Barrows, PvM |
| Piety Build | As above + 70P | 100–110 | PvP + PvM |
| Maxed Main | 99 All | 126 | All content |
OSRS PvP & Wilderness Calculator Guide
The OSRS wilderness combat calculator uses the official formula to determine your PvP bracket. The OSRS pvp calculator is essential for PKing — knowing your range prevents stepping into a bracket full of maxed mains.
OSRS Wilderness Combat Range Formula
OSRS PvP Build Strategy — OSRS Pking Calculator Tips
- OSRS pking build: Keep your CB low by training offence (Attack, Strength, Ranged, Magic) without Defence or Prayer to stay in the smallest possible bracket
- OSRS pvp build calculator: Use our tool above to simulate your CB before training any Defence levels — each point permanently shifts your bracket
- OSRS account build planner: Plan every level before you train it — Defence and Prayer levels cannot be reduced without a new account
- OSRS wilderness calculator: Deep Wilderness (levels 30–56) allows much larger CB ranges, making maxed mains more viable for wilderness bossing
OSRS Combat Training Calculator & Optimization Guide
The OSRS combat training calculator combined with our OSRS training planner helps you find the fastest path from your current stats to your target combat level.
OSRS Combat Training Methods by Level
| CB Range | Best F2P Method | Best P2P Method | XP/Hour |
|---|---|---|---|
| CB 3–30 | Chickens, Cows (Lumbridge) | Monks of Zamorak | 5K–20K |
| CB 30–50 | Barbarians at Barb Village | Sand Crabs, Rock Crabs | 20K–45K |
| CB 50–70 | Flesh Crawlers, Lesser Demons | Slayer, Yaks (Neitiznot) | 45K–80K |
| CB 70–90 | Moss Giants, Greater Demons | Nightmare Zone, Ammonite Crabs | 80K–110K |
| CB 90–126 | Fire Giants, Ankous | NMZ (max), Slayer tasks | 100K–130K |
OSRS Combat Optimization — Which Skill to Train?
The OSRS combat optimization answer depends on your goal:
- OSRS fastest combat level: Train Ranged or Magic — the ×1.5 multiplier means each level goes further toward CB than Melee when those are dominant
- Best KO potential (pures): Max Strength first, then Attack — Strength affects max hit, Attack affects accuracy
- Efficient mains: Balance Attack and Strength equally — both contribute 0.325 per combined point
- Avoid Prayer early: Prayer is halved — training it from 1 to 70 adds only ~8 CB levels total
- OSRS level up calculator tip: Hitpoints rises naturally — don't train it independently; let combat skills raise it
OSRS Combat Milestones Table
| Combat Level | What It Unlocks / Significance |
|---|---|
| CB 40 | Pure PKing bracket begins; mithril armor accessible |
| CB 50 | Classic pure bracket; Dragon weapons viable with 60 Attack |
| CB 60 | Higher prayer options (Protect prayers); start of Slayer viability |
| CB 70 | Zerker range; Slayer cape at 99 Slayer; Barrows with 70 Def |
| CB 80 | GWD accessible; Whip-level melee; Zulrah viable |
| CB 90 | Most bosses comfortable; Raids preparation begins |
| CB 100 | Nex, TOB, TOA accessible; high-level wilderness PvP |
| CB 110 | Competitive at virtually all OSRS content |
| CB 126 | Maximum — fully maxed main, all content accessible |
OSRS PvM Boss Requirements Calculator
The OSRS pvm calculator checks your readiness for every boss, raid, and Slayer assignment. Here are the key OSRS combat recommendations:
| Boss / Raid | Min CB | Recommended CB | Key Requirement |
|---|---|---|---|
| King Black Dragon (KBD) | 55 | 70+ | Anti-dragon shield |
| God Wars Dungeon (GWD) | 70 | 90+ | Kill counts per boss |
| Zulrah | 70 | 85+ | Regicide partial completion |
| Vorkath | 75 | 90+ | Dragon Slayer II quest |
| Barrows | 60 | 80+ | None; prayer highly recommended |
| Kalphite Queen | 70 | 85+ | None |
| Chambers of Xeric (COX) | 85 | 100+ | None; scales with team |
| Theatre of Blood (TOB) | 100 | 115+ | Hardmode group content |
| Tombs of Amascut (TOA) | 85 | 100+ | Raid level scaling system |
| Nex | 100 | 110+ | Ancient Prison access |
| Cerberus | 80 | 90+ | 91 Slayer required |
| Alchemical Hydra | 95 | 100+ | 95 Slayer required |
| Nightmare / Phosani's | 90 | 100+ | None |
| Dagannoth Kings | 75 | 90+ | All three combat styles needed |
| Wilderness Bosses | 50 | 80+ | PvP risk in Wilderness |
| Slayer (General) | 40 | 70+ | Slayer level varies per task |
Related OSRS Calculators
Beyond combat, OSRS has calculators for every skill. Here are the most popular ones:
| Calculator | What It Does |
|---|---|
| OSRS Max Hit Calculator | Max hit from strength bonus, prayer, and gear |
| OSRS DPS Calculator | Damage per second across different setups |
| OSRS XP Calculator | XP needed from current to target level |
| OSRS Prayer Calculator | Prayer drain rates, altar offerings, bones to ashes |
| OSRS Slayer Calculator | Task XP, master selection, point farming |
| OSRS Gear Planner | Best-in-slot gear for each combat style and boss |
Important Information — Key Facts Every OSRS Player Should Know
These are the most common mistakes new players make that permanently damage their account builds. Each point below is something you cannot undo once done.
Irreversible Combat Decisions
- Defence levels are permanent. Once trained, Defence cannot be lowered. A 1 Defence pure account is ruined the moment Defence XP is gained — even accidentally through a wrong combat style setting.
- Combat style matters when training. In melee, the four attack styles are: Accurate (Attack XP), Aggressive (Strength XP), Defensive (Defence XP), and Controlled (shared XP). Pure accounts must never use Defensive style.
- Quest rewards can grant unwanted XP. Some quest rewards offer combat XP automatically. Always research quest rewards before completing a quest on a pure or build account. Example: Waterfall Quest gives Attack + Strength XP — safe for most builds, but be aware of what you're accepting.
- Hitpoints XP cannot be avoided. Every combat action gains Hitpoints XP automatically. High-HP pures are a natural consequence of training combat — plan HP milestones accordingly.
Wilderness Combat Range — Quick Reference Table
| Your Combat Level | Wilderness Level 1 | Wilderness Level 10 | Wilderness Level 20 | Wilderness Level 30 | Wilderness Level 56 |
|---|---|---|---|---|---|
| CB 30 | 29–31 | 20–40 | 10–50 | 3–60 | 3–86 |
| CB 50 | 49–51 | 40–60 | 30–70 | 20–80 | 3–106 |
| CB 70 | 69–71 | 60–80 | 50–90 | 40–100 | 14–126 |
| CB 90 | 89–91 | 80–100 | 70–110 | 60–120 | 34–126 |
| CB 110 | 109–111 | 100–120 | 90–126 | 80–126 | 54–126 |
| CB 126 | 125–126 | 116–126 | 106–126 | 96–126 | 70–126 |
Wilderness Rule: The range works both ways — if you can attack someone, they can always attack you back. Never enter the Wilderness without checking your bracket first.
OSRS XP Required Per Level — Combat Skills Reference
| Level | XP Required (that level) | Total XP to Reach | Approx. Time @ 80K XP/hr |
|---|---|---|---|
| Level 40 | 14,833 | 37,224 | ~30 min |
| Level 50 | 33,648 | 101,333 | ~1.3 hr |
| Level 60 | 73,516 | 273,742 | ~3.4 hr |
| Level 70 | 160,453 | 737,627 | ~9.2 hr |
| Level 80 | 350,039 | 1,986,068 | ~24.8 hr |
| Level 90 | 763,904 | 5,346,332 | ~66.8 hr |
| Level 99 | 1,210,421 | 13,034,431 | ~163 hr |
AFK Combat Training — Best Methods by Category
Combat Level Bracket Strategy — Key Build Thresholds
| Defence Level | Build Name | Key Gear Unlocked | Typical CB Range | Best Use Case |
|---|---|---|---|---|
| 1 Defence | Pure / 1 Def | None (offensive only) | CB 40–75 | Low-bracket PvP KO builds |
| 20 Defence | 10HP Pure | Black armor, minor bonuses | CB 40–65 | Niche PvP edge cases |
| 40 Defence | Obby Pure | Obsidian armor (no other reqs) | CB 55–80 | Tanky pure hybrid PvP |
| 45 Defence | Zerker | Berserker helm + Fighter torso | CB 70–85 | Best PvP DPS-to-CB ratio |
| 60 Defence | 60 Def Pure | Dragon armor pieces | CB 85–100 | Hybrid PvP/PvM transition |
| 70 Defence | Med Level | Barrows armor sets | CB 95–115 | Best all-round PvM build |
| 75 Defence | High Med | Bandos, Armadyl, Ancestral | CB 100–120 | Endgame PvM + Raids |
| 99 Defence | Maxed Main | All armor in game | CB 120–126 | All content, max efficiency |
Prayer Level Milestones — What Each Unlock Gives You
| Prayer Level | Prayer Unlocked | Bonus | CB Added (from 1) |
|---|---|---|---|
| Level 13 | Burst of Strength | +5% Strength | +1 CB |
| Level 25 | Superhuman Strength | +10% Strength | +3 CB |
| Level 31 | Protect from Melee/Ranged/Magic | Block damage type | +4 CB |
| Level 43 | Ultimate Strength | +15% Strength | +5 CB |
| Level 44 | Eagle Eye / Steel Skin | +15% Ranged / +15% Def | +5 CB |
| Level 55 | Smite | Drains opponent Prayer | +7 CB |
| Level 70 | Piety / Rigour unlock | +25% Melee acc & str | +9 CB |
| Level 77 | Rigour (Ranged prayer) | +20% Ranged acc & dmg | +10 CB |
| Level 95 | Preserve | Boosted stats last longer | +12 CB |
| Level 99 | Max Prayer | Longest prayer drain | +12 CB |
OSRS Combat Calculator — Frequently Asked Questions
Q: How to calculate combat level in OSRS?
Use the formula: ⌊ 0.25×(Defence+Hitpoints+⌊Prayer÷2⌋) + 0.325×max(Att+Str, ⌊Rng×1.5⌋, ⌊Mag×1.5⌋) ⌋. Or just enter your stats into the OSRS combat calculator at the top of this page for an instant answer.
Q: What is the max combat level in OSRS?
The maximum combat level in Old School RuneScape is 126. It requires level 99 in all seven combat skills: Attack, Strength, Defence, Hitpoints, Prayer, Ranged, and Magic.
Q: Does training Ranged or Magic raise my combat level?
Only if those skills become your dominant combat style. Ranged and Magic get a ×1.5 multiplier in the formula. If ⌊Ranged×1.5⌋ or ⌊Magic×1.5⌋ exceeds your Attack+Strength value, those skills will raise your CB. Otherwise they don't affect it at all — that's why pures can freely train Ranged and Magic.
Q: OSRS combat calculator F2P vs P2P — what's the difference?
The OSRS combat formula is identical for F2P and P2P. The difference is available skills and gear. F2P players can't access Prayer beyond level 31 (Protect prayers are P2P) and lack many P2P weapons. Our calculator handles both modes accurately.
Q: What is the Wilderness combat bracket?
In the Wilderness, you can only attack players within ±Wilderness Level of your own combat level. E.g., at CB 80 in Wilderness 20, you can attack (and be attacked by) CB 60–100 players. Use the OSRS wilderness combat calculator tab above for instant calculations.
Q: What is the fastest way to increase combat level in OSRS?
Train Ranged or Magic — the ×1.5 multiplier means fewer levels for more CB gain when those are dominant. For Melee accounts, train Attack and Strength equally. Avoid Prayer for raw CB gains — it's halved. Methods like Sand Crabs, Nightmare Zone, and Slayer give the best XP/hour at higher levels.
Q: How accurate is this OSRS combat calculator?
This is the most accurate OSRS combat calculator online — it uses the exact same formula as the official OSRS game client, floor rounding included. Results will always match what you see in-game on your stats page.
Q: Can I use this calculator for Ironman accounts?
Yes. The OSRS combat formula is identical for all account types — Normal, Ironman, Hardcore Ironman, and Ultimate Ironman. The only difference is how you gain your stats (no trading), not how they're calculated.
Q: What is the fastest way to reach 100 combat level in OSRS?
The most efficient path to CB 100 is training Ranged via Chinchompas at the Monkey Madness tunnels or training Melee at Nightmare Zone. For a balanced main, prioritize Strength (max hit) over Attack (accuracy), keep Defence at 70 for barrows gear, and let Hitpoints rise naturally. With focused training, CB 100 is reachable in a few hundred hours of gameplay.
Q: What is AFK combat training in OSRS and what are the best spots?
AFK combat means training at monsters that keep you in combat for 5–20 minutes without clicking. Best AFK spots include: Nightmare Zone (up to 20 min AFK, best P2P), Sand Crabs (4–5 min AFK, Hosidius area), Ammonite Crabs (5–7 min AFK, Fossil Island), and Rock Crabs (3–5 min AFK, Rellekka). For F2P, Flesh Crawlers in Stronghold of Security offer decent AFK Melee training.
Q: Does Prayer affect combat level if I don't use it for fighting?
Yes — every point of Prayer you train permanently raises your combat level slightly, even if you never use prayers in combat. In the formula, Prayer is halved before being added to the base value. So training Prayer from 1 to 70 (for Piety) adds approximately +8 combat levels to your character. This is why pure builds typically skip Prayer or cap it at 1, 31, or 44.
Q: What is a "combat style" in OSRS and why does it matter?
Your combat style (Melee, Ranged, or Magic) is determined by which of the three combat contributions is highest in the formula. Only the dominant style's score is added to your base — the other two are ignored entirely. This means: if you have high Ranged but also high Attack+Strength, only one of those contributes. Switching your "dominant" style from Melee to Ranged will change how future levels affect your CB — always use the calculator above to simulate this before training.
Q: Can Defence levels be reduced or reset in OSRS?
No — Defence levels cannot be reduced or reset in OSRS. Once you train Defence, those levels are permanent. This is why pure account builders are extremely cautious about Defence: even a single accidental Defence level can ruin a build bracket. If you're planning a pure, zero-Defence, or 45 Defence zerker account, always double-check your combat style settings before clicking "Attack" in melee (Defensive mode trains Defence accidentally).
Q: How many XP points does it take to reach 99 in a combat skill?
Reaching level 99 in any OSRS skill requires exactly 13,034,431 XP. For combat skills with efficient training (80K–130K XP/hour at high levels), that's approximately 100–160 hours per skill. Ranged training with Chinchompas can hit 200K+ XP/hour, cutting that to ~65 hours. Use the Skills tab in our calculator above to see how each level of a skill affects your combat level milestone by milestone.
Q: What is the best combat training method for beginners in OSRS?
For brand-new accounts (CB 3–30), start with Chickens at Lumbridge Farm (free, easy, drops feathers for Fletching). Progress to Cows for cowhide GP. Then move to Barbarians at Barbarian Village (CB 30–50) and Hill Giants in Edgeville Dungeon (CB 40–60, need a brass key). Your first major goal should be CB 40 to enter the classic pure bracket, then CB 60 to access Dragon weapons and start Slayer training seriously.
Q: What is the minimum combat level to do Slayer effectively?
You can technically start Slayer at any combat level, but CB 40–50 is the practical minimum for meaningful task assignment. For efficient Slayer XP and GP per hour, aim for CB 70+ with 50+ Slayer to unlock better masters (Konar, Nieve). At CB 100+, Slayer becomes one of the best all-around activities — combining combat XP, Slayer XP, and profitable drops like Abyssal whips, Trident of the swamp, and Zenyte shards.
Q: Does my Hitpoints level rise automatically when I train other combat skills?
Yes — every combat skill (Attack, Strength, Defence, Ranged, Magic) grants 1.33 Hitpoints XP for every XP earned in that skill. This means Hitpoints rises passively as you train other skills. You should almost never manually train Hitpoints — it will reach 80–90 naturally by the time your other skills are in the 70s–80s. The exception is specific account builds where low HP is intentional (rare edge cases in PvP optimization).
Q: What are the best quests to boost combat level quickly in OSRS?
Several quests grant large combat skill XP rewards. Top picks: Vampire Slayer (+4,825 Attack XP, easy early quest), Fight Arena (+12,175 Attack XP, no requirements), Tree Gnome Village (+11,450 Attack XP), Waterfall Quest (+13,750 Attack + Strength XP — the famous XP boost that takes new accounts from CB 3 to ~CB 30 instantly), and Holy Grail (+11,000 Prayer XP for Piety progression). Completing these quests early saves significant grinding time.
Q: How do I know if my account type is Melee, Ranged, or Magic dominant?
The calculator above shows your dominant style in real time under the "Breakdown" section. Mathematically: compare Attack+Strength vs ⌊Ranged×1.5⌋ vs ⌊Magic×1.5⌋ — whichever is largest determines your style. Most accounts start as Melee-dominant. You become Ranged-dominant when your Ranged level exceeds roughly (Attack+Strength)÷1.5. For a typical 60 Att / 70 Str build (combined 130), you'd need Ranged level 87+ to become Ranged-dominant.
Q: What happens to my combat bracket if I train both Melee and Ranged?
Only the higher contribution counts toward your combat level — you never get penalized for training the weaker style. For example, if your Melee score is 50 and your Ranged score is 45, only the Melee 50 is added to your base. Training Ranged further is "free" until it overtakes Melee at 50+. This mechanic is crucial for hybrid and void builds that want strong Ranged without permanently raising CB beyond their target bracket.
Use the Free OSRS Combat Calculator
Scroll to the top to calculate your combat level, plan builds, check PvP ranges, and optimize training — all for free.
🎮 Back to Calculator ↑Conclusion
The OSRS combat calculator is an essential tool for every Old School RuneScape player. From understanding the OSRS combat level formula to planning the perfect pure build with our OSRS pure calculator, checking your Wilderness range with the OSRS pvp calculator, or verifying boss readiness with the OSRS pvm calculator — this complete guide covers it all.
Bookmark this page and use it as your go-to OSRS combat calculator online resource. Good luck in Gielinor! ⚔️
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