OSRS Combat Level Calculator
Your combat level comes from a fixed formula: a base from Defence, Hitpoints and Prayer, plus the highest of your melee, ranged or magic offence. Enter your stats to see your exact combat level and which style is driving it.
The exact OSRS combat formula
This OSRS combat level calculator uses Jagex's exact formula, so it matches your in-game level precisely. Enter your stats and the combat calculator for OSRS shows your combat level and which style — melee, ranged or magic — is driving it.
Combat = ⌊Base + 0.325 × max( Attack+Strength, 1.5×Ranged, 1.5×Magic )⌋
How to use it
Fill in Attack, Strength, Defence, Hitpoints, Ranged, Magic and Prayer. The OSRS combat level calculator updates instantly — useful for planning a pure, a zerker or a maxed account.
Why Prayer counts half
Prayer is added at half value (rounded down), so two Prayer levels raise combat about as much as one Defence or Hitpoints level. A maxed account (all 99s) reaches the cap of combat level 126.
Frequently asked questions
How is OSRS combat level calculated?
Base = 0.25 × (Defence + Hitpoints + floor(Prayer/2)). Then add 0.325 × the highest of (Attack+Strength), 1.5×Ranged or 1.5×Magic. Floor the total.
Why does Prayer only count half?
Prayer contributes at half value (floored) in the base part of the formula, so two Prayer levels raise combat about as much as one Defence or Hitpoints level.