OSRS Max Hit Calculator (Melee)
Use this tool to estimate your Old School RuneScape melee max hit based on your current setup.
What is a Max Hit in OSRS?
In Old School RuneScape, your max hit is the highest number your attack can deal in a single strike. If your max hit is 42, each hit can land anywhere from 0 to 42 (before accuracy decides whether it lands at all). Knowing this value helps with bossing, PvP planning, Slayer efficiency, and gear upgrades.
How this OSRS max hit calculator works
This page uses the standard melee max hit framework used by most players and theorycrafters: effective strength is built from your level, prayer, stance, and optional Void, then converted into damage through your strength bonus and any additional multipliers.
Core melee formula
if Void melee: effective_strength = floor(effective_strength × 1.10)
base_max_hit = floor(0.5 + effective_strength × (str_bonus + 64) / 640)
final_max_hit = floor(base_max_hit × gear_multiplier × target_multiplier × special_multiplier)
The calculator gives you both a practical max hit estimate and a full breakdown so you can compare setups quickly.
Step-by-step example
Suppose you have 99 Strength, Piety active, Aggressive stance, and 132 strength bonus:
- Strength level: 99
- Prayer: 1.23 (Piety)
- Style: +3 (Aggressive)
- Strength bonus: 132
With those numbers, your effective strength becomes very high, and your max hit typically lands in the upper melee range expected from late-game gear. Add Slayer helm or Salve multipliers, and that max hit can climb further.
How to increase max hit in OSRS
1) Raise effective Strength
- Train Strength levels (or use boosts like Super combat potions).
- Use stronger prayers (Piety is a major jump).
- Choose Aggressive style when possible.
2) Improve strength bonus on gear
- Upgrade weapon first when it gives major strength gain.
- Then optimize gloves, boots, amulet, ring, and cape slots.
- Small bonuses stack; one extra max hit can be a huge DPS boost over long fights.
3) Use target-specific multipliers
- Slayer helmet effects on task.
- Salve amulet effects vs undead.
- Special attack weapons with damage multipliers.
Common max hit calculator mistakes
- Entering base Strength level instead of boosted level.
- Forgetting to switch style bonus when changing attack style.
- Adding multiple multipliers incorrectly (stacking order matters).
- Confusing accuracy boosts with damage boosts.
Melee vs ranged vs magic max hit
This specific calculator is built for melee max hit OSRS math. Ranged and magic use different systems:
- Ranged: depends on ranged strength, ammo interactions, stance, and specific weapon behavior.
- Magic: often depends on spell base damage, magic damage %, and weapon/spell interactions.
If you are comparing combat styles, use style-specific formulas for accurate results.
Quick FAQ
Is this calculator accurate?
It is accurate for standard melee scenarios and very close to in-game behavior for common setups. Edge-case interactions (certain unique items or temporary mechanics) may require manual checks.
Does max hit guarantee higher DPS?
Not by itself. DPS depends on max hit, accuracy, and attack speed. A setup with slightly lower max hit can outperform another if it attacks faster or lands more often.
Should I always prioritize max hit upgrades?
Usually, big max hit breakpoints are excellent. But optimal gear choices depend on your target's defense, your budget, and whether your content favors burst damage or sustained accuracy.
Final thoughts
A reliable OSRS max hit calculator makes gear decisions far easier. Use this tool before buying upgrades, setting PvM loadouts, or planning PvP risk setups. Even one extra max hit can save real time over thousands of attacks.