CB OSRS Calculator
OSRS Combat Level Calculator works out Starting experience and Starting level from Game, Current level and Current experience. The default figures on this page give combat level of 126; change any entry and the result, the working and the sources update together.
Your figures
Updates as you typeHow this is worked out
4 steps
- Base = 1/4 x (Defence + Hitpoints + floor(Prayer/2)) = 61.75
- Melee = 13/40 x (Attack + Strength) = 64.35
- Ranged = 13/40 x floor(3 x Ranged / 2) = 48.1; Magic = 48.1
- Combat level = floor(61.75 + 64.35) = 126
Its 5 worked examples are re-run on every release, last on 15 September 2026. What changed
Sources and references
4 sources
What the OSRS Combat Level Calculator calculates
Works out RuneScape experience and levels from the published experience curve, the Old School and RuneScape 3 combat levels, and Old School melee max hit, accuracy and damage per second.
How to use this OSRS Combat Level Calculator
Enter Game, Current level, Current experience and Target level. Starting experience updates as you type. Change one figure at a time to see what drives the result.
How the result is worked out
Open “How this is worked out” beside the result for the step-by-step calculation behind Starting experience, Starting level and Experience at target level.
The method follows Old School RuneScape Wiki: Experience, Old School RuneScape Wiki: Combat level, RuneScape Wiki: Combat level and Old School RuneScape Wiki: Damage per second/Melee.
What you can compare
Change one input at a time to see how it affects Starting experience, Starting level and Experience at target level. The inputs you can vary are Game, Current level, Current experience, Target level, Experience per action and Attack.
Results are general information, not financial, tax, legal, medical or engineering advice. Check any decision that matters with a qualified professional.
See something wrong? Report a problem with this calculator
Frequently asked questions
What information do I need for the OSRS Combat Level Calculator?
You need Game, Current level, Current experience, Target level, Experience per action, Attack, Strength and Defence. The page opens with default figures that give combat level of 126, so you can see the scale before entering your own.
What does this OSRS Combat Level Calculator show?
It shows Starting experience, Starting level, Experience at target level, Experience remaining, Actions remaining, Combat level, Effective strength level and Maximum hit, with the working and any warnings for your entries.
Can I check how the OSRS Combat Level Calculator result was calculated?
Yes. The “How this is worked out” section shows the calculation steps, and the sources section identifies the references used for the method.