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OSRS Combat Level Calculator

Work out your Old School RuneScape combat level from your stats — and see your Wilderness attack range — using the exact in-game formula.

OSRS Combat Calculator

Uses the official combat formula. 🔒 Calculated in your browser.

🔒 Nothing you enter is sent anywhere or stored. All processing happens in your browser.

Features

Exact in-game formula

Uses the official OSRS combat formula, so the level matches what you'll see on your character.

Shows your combat class

Tells you whether melee, Ranged or Magic is driving your level — key for build planning.

Wilderness attack range

See the ±15 combat band that decides who you can fight in the Wilderness and PvP worlds.

Instant and private

Recalculates as you type; nothing is uploaded.

How it works — in four simple steps

No signup, nothing to install — it all runs in your browser.

Step 01

Enter your combat stats

Type your Attack, Strength, Defence, Hitpoints, Ranged, Magic and Prayer.

Step 02

Read your combat level

See your level update instantly as you change any stat.

Step 03

Check your class and range

See whether melee/Ranged/Magic is dominant, and your Wilderness attack range.

Step 04

Plan your build

Adjust stats to design a pure, zerker or main and see the combat level before you train.

How it works

Your combat level in Old School RuneScape is worked out from seven stats. The game takes a base from your defensive skills — a quarter of your Defence, Hitpoints and half your Prayer — then adds the strongest of your three attack styles: melee (Attack + Strength), Ranged, or Magic, each scaled by 0.325. Whichever of the three is highest decides your combat class.

This calculator applies that exact formula, so you can plan a pure, a zerker or a maxed main and see the combat level before you train. It also shows your Wilderness attack range (±15 levels) — who you can attack, and who can attack you, in the Wildy and other PvP areas. Everything runs in your browser.

Examples

Maxed (all 99, 99 Prayer) → combat level 126.
A 1-Defence pure with 99 Attack/Strength, 99 Ranged → high combat, Melee/Ranged class.

Frequently asked questions

How is OSRS combat level calculated?
Base = 0.25 × (Defence + Hitpoints + ⌊Prayer ÷ 2⌋). Then add 0.325 × the highest of: Attack + Strength (melee), ⌊Ranged ÷ 2⌋ + Ranged, or ⌊Magic ÷ 2⌋ + Magic. The total is floored. The calculator does this exactly.
What is the maximum combat level?
126 — reached with 99 in Attack, Strength, Defence, Hitpoints, Ranged, Magic and Prayer.
What is Wilderness attack range?
In the Wilderness you can attack (and be attacked by) players within ±(Wilderness level) combat levels, with a base of about 15 near the edge. This tool shows your ±15 band as a guide.
Does Prayer affect combat level?
Yes — half your Prayer level (rounded down) is added to the base, so training Prayer raises your combat level.
How do I make a pure?
Keep Defence (and usually Prayer/Hitpoints) low while raising Attack and Strength or Ranged. Enter different stats here to see how each choice changes your combat level.