OSRS DPS Calculator & Max Hit Calculator — Compare Gear Setups and Maximise Damage

Understanding your damage output is one of the most important skills in Old School RuneScape. Whether you are grinding slayer tasks, camping a boss for a unique drop, or building a PvP pure, knowing your max hit and damage per second tells you whether your gear setup is optimal — or if you are leaving kills on the table.

Our new DPS Calculator and Max Hit Calculator give you precise answers without the guesswork. No spreadsheets, no manual formulas. Enter your stats, pick your gear, and see the numbers instantly.

What Each Tool Does

The Max Hit Calculator focuses on your single biggest hit. It accounts for Strength level, equipment strength bonus, prayers, potions, special attacks, and enemy-specific multipliers like Salve amulet, Slayer helmet, and Arclight. Want to know what Dharok's can hit at 1 HP with Piety and a Dragon battleaxe spec? The calculator handles all the stacking logic, including the Dharok's HP-based multiplier formula.

The DPS Calculator goes a step further by factoring in accuracy. Your max hit means nothing if you cannot land it. The DPS calculator computes your attack roll versus the target's defence roll using the official OSRS accuracy formula, then calculates average damage per second based on your weapon's attack speed. This tells you which weapon is actually better against a specific target — not just which one has a higher max hit.

Why DPS Matters More Than Max Hit

A common trap is choosing gear purely by max hit. A weapon that hits 50 once every 3.6 seconds might seem strong, but against a target with high Defence, a faster weapon that hits 40 every 2.4 seconds can actually deal more damage over time once accuracy is factored in.

The DPS Calculator makes these comparisons straightforward. Switch between weapons using the preset dropdown, adjust prayers and potions, and see how your effective DPS changes against any target defence level and bonus.

Key Features

Both tools share a consistent set of inputs so you can move between them easily:

• Combat style tabs — toggle between melee, ranged, and magic calculations
• Weapon presets — load stats for common weapons including Blowpipe, Scythe of Vitur, Twisted bow, Trident of the swamp, and more
• Prayer selection — Piety, Rigour, Augury, Chivalry, and lower-tier prayers all affect your effective level
• Potion boosts — Super strength, Super combat, and Overload calculations with correct OSRS formulas
• Attack style — choose between Accurate, Aggressive, Controlled, Rapid, or Longrange for proper accuracy and strength bonuses
• Special attacks — damage multipliers for Armadyl godsword, Dragon warhammer, Bandos godsword, Dragon claws, and more
• Target configuration — set the target's Defence level and equipment bonus to simulate any monster or player

How the Formulas Work

The calculators use formulas verified against the OSRS Wiki:

• Effective level = floor(floor(base level × prayer multiplier) + style bonus + 8)
• Attack roll = effective level × (equipment bonus + 64)
• Defence roll = (target level + 9) × (target defence + 64)
• Hit chance = if attack roll > defence roll, accuracy = 1 − (defence roll + 2) ÷ (2 × (attack roll + 1))
• Max hit = floor(0.5 + effective strength × (strength bonus + 64) ÷ 640)
• Average hit = (max hit + 1) ÷ 2 × accuracy
• DPS = average hit ÷ (weapon speed × 0.6)

The calculation breakdown section shows every step so you can verify the numbers yourself.

Using These Together

Combine the DPS Calculator with the Best-in-Slot Finder to test different gear setups without buying them. Found a theoretical upgrade? Check your Combat Level Calculator to see if it pushes you into a new PvP bracket. Build the loadout visually with the Gear Picker and share it with your clan.

Open DPS Calculator · Open Max Hit Calculator

FAQ

What is the difference between the DPS Calculator and the Max Hit Calculator?

The Max Hit Calculator focuses on your single biggest hit, while the DPS Calculator also factors in accuracy and attack speed to compute average damage per second. Use max hit for peak damage and DPS to compare weapons against a specific target.

Why does DPS matter more than max hit?

A high max hit means little if it rarely lands. Against a high-Defence target, a faster weapon with a lower max hit can deal more damage over time once accuracy is factored in, which is why the DPS Calculator compares real average damage.

Does the DPS Calculator account for accuracy?

Yes. It computes your attack roll versus the target's defence roll using the official OSRS accuracy formula, then calculates average damage per second based on your weapon's attack speed, telling you which weapon is actually better against a specific target.

Which prayers and potions does the DPS Calculator support?

The tools support Piety, Rigour, Augury, Chivalry and lower-tier prayers, plus potion boosts including Super strength, Super combat and Overload, all calculated with correct OSRS formulas that feed into your effective level.

Can I simulate damage against a specific monster or player?

Yes. Target configuration lets you set the target's Defence level and equipment bonus to simulate any monster or player, so you can see how your setup performs against the exact enemy you plan to fight.