OSRS Max Hit Calculator

How to Use This Calculator

Choose melee or ranged. Enter the visible damage level, temporary boost, prayer multiplier, attack-style bonus, void multiplier, equipment Strength or Ranged Strength bonus, and any verified final damage multiplier. For melee use Strength. For ranged use Ranged.

Formula & Methodology

Effective damage level is floor((floor((level + boost) × prayer multiplier) + style bonus + 8) × void multiplier). Base max hit is floor(0.5 + effective damage level × (equipment damage bonus + 64) ÷ 640). The final result applies the entered damage multiplier and floors again.

Standard melee example

At 99 Strength with a +19 boost, a 1.23 prayer multiplier, +3 aggressive style bonus, no void bonus, and +130 Strength bonus, the calculator returns the standard formula result before weapon-specific exceptions.

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Frequently Asked Questions

Does this calculator support melee and ranged?

Yes. Use Strength inputs for melee or Ranged inputs for ranged.

What is the effective damage level?

It combines visible level, boost, prayer, attack-style bonus, the standard +8 term, and any applicable void multiplier.

Does it support special attacks?

Not automatically. Special attacks and weapon-specific branches require separate verified formulas.

What should I enter for no multiplier?

Enter 1 for prayer, void, and damage multipliers that do not apply.

Why can another calculator show a different max hit?

It may automatically apply a weapon, set, monster, raid, or special-attack modifier that this manual calculator does not include.