OSRS DPS Calculator
Compare gear the honest way. Enter your setup and a target's defence to see your max hit, hit chance, damage per second and time to kill.
The OSRS DPS Calculator turns your levels, gear bonuses and a target's defence into real damage per second and a time to kill - so you can settle whip versus godsword, or test a new weapon, before you spend the gp.
Your setup
Target
Look up a monster's Defence level, its defence bonus for your attack type, and its Hitpoints on the OSRS Wiki - or pick a preset above.
The damage
DPS Calculator FAQ
What is DPS in OSRS?
DPS is damage per second - your average damage output once max hit, accuracy and attack speed are combined. It is the single best number for comparing gear setups against a boss, because a bigger max hit is useless if you rarely land it.
How do I increase my DPS in OSRS?
Raise any of the three levers: a higher max hit (Strength or ranged strength gear, prayers, potions), better accuracy (attack bonus versus the target's defence), or a faster weapon. The DPS calculator shows which lever moves your number most against a given target.
Does a higher max hit always mean higher DPS?
No. A slow weapon with a huge max hit can lose to a fast, accurate one. DPS blends max hit, hit chance and attack speed, so a whip often out-damages a godsword on low-defence targets even though the godsword hits harder.
What is time to kill (TTK)?
TTK is the target's Hitpoints divided by your DPS - roughly how long an average kill takes. It is an average, so real kills vary with RNG, but it is the fair way to compare setups on the same boss.
Does the OSRS DPS calculator use the monster's Defence?
Yes. Enter the target's Defence level and its defence bonus against your attack type (from the OSRS Wiki), plus its Hitpoints, and the calculator rolls your accuracy against it for a true hit chance, DPS and TTK.
How accurate is this DPS calculator?
The maths uses the standard OSRS combat formulas - effective levels, the attack and defence rolls, and the hit-chance curve - and is unit-tested against known Wiki values. Special attacks and non-uniform-damage weapons are simplified in this version.