Max Hit Calculator
Enter your level, prayer, potion boost, combat style and gear strength bonus to see your maximum possible hit for melee, ranged or magic.
Boosted level
118
Effective level
156
Max hit
36
How it's calculated
Melee and Ranged share one formula, run through the effective-level engine used across this site:
max hit = floor(0.5 + effective level × (gear strength bonus + 64) / 640)
Magic instead scales a fixed base max hit by a flat gear percentage:
magic max hit = floor(base spell/weapon max hit × (1 + magic damage %))
Worked examples
| 99 Strength, Piety, Super strength potion, Aggressive -- boosted level | 118 |
| Effective Strength level | 156 |
| Max hit with an Abyssal whip (+82 Str) | 36 |
| Trident of the Seas (base 20) with 10% magic damage | 22 |
Plug the same inputs into the calculator above and it lands on the same result.
Frequently Asked Questions
What's the max hit formula?
max hit = floor(0.5 + effective level x (gear strength bonus + 64) / 640), where effective level = floor(boosted base level x (1 + prayer bonus %)) + combat-style bonus + 8. For melee, the boosted level and style bonus apply to Strength; for ranged, to Ranged (with the style bonus applying only to accuracy, not damage -- see the note below the calculator). Magic works differently: see the next question.
Why is magic max hit calculated differently?
Most combat spells and magic weapons have a fixed base max hit (Fire Strike's is always 8, for example) rather than one that scales with your Magic level the way melee scales with Strength. Gear magic-damage percentage (from items like Tumeken's Shadow or an Occult necklace) then multiplies that fixed base: max hit = floor(base spell/weapon max hit x (1 + magic damage %)). Magic level does still affect your accuracy roll, just not your max hit.
How much does a Super strength potion actually add?
OSRS potion boosts follow a flat-plus-percentage formula: boost = floor(level x percentage) + flat amount. A Super strength potion is +15% and +5 flat, so at level 99 Strength it adds floor(99 x 0.15) + 5 = 14 + 5 = 19 levels, before prayer and style bonuses are even applied on top.
Does the combat style I fight with change my max hit?
For melee, yes: Aggressive adds +3 to your effective Strength level (more damage), Accurate adds +3 to effective Attack instead (more accuracy, not damage), and Controlled splits +1 across Attack, Strength and Defence. For Ranged, no combat style adds to damage -- only the Accurate style's +3 goes to your accuracy roll, which this max-hit-only tool doesn't compute (see the DPS Calculator for the full accuracy picture).
Max Hit Calc is a set of fan-made calculators built from the game's published combat and experience formulas, not affiliated with, endorsed by, or operated on behalf of Jagex Ltd. Old School RuneScape is a trademark of Jagex Ltd. Any preset gear, monster or action values above are typed from general knowledge of the game and are approximate -- verify the current figure in-game before relying on it. See the Terms.