Learn more
How it works
Enter your combat stats, equip a weapon, and pick a monster. The calculator uses the OSRS Wiki damage-per-second formulas for melee, ranged, and magic.
Effective levels include potion boosts, prayer multipliers, attack style bonuses, and Void when a full set is equipped.
Expected damage per attack is hit chance times the midpoint of the damage range. DPS divides that by attack speed in seconds (ticks × 0.6).
Important mechanics
- Osmumten's fang rolls accuracy twice and rolls damage between 15% and 85% of max hit.
- Scythe of vitur adds extra hits on larger targets. Each hit rolls accuracy separately.
- Twisted bow scales with the target's Magic level. Tumeken's shadow triples (or quadruples inside ToA) magic attack and damage bonuses.
- Time to kill is hitpoints ÷ DPS. It does not model travel, special phases, or overkill.
Frequently asked
Why is my DPS different from a video?
Videos include thralls, spec weapons, and phase skips. This tool reports standard-attack DPS plus explicit unsupported-mechanic notices.
Do Salve and Slayer helm stack?
No. The engine applies Salve on undead targets, otherwise the slayer bonus when you mark the kill as on-task.
Related tools
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Max Hit CalculatorFind your melee, ranged, or magic max hit from stats, prayers, potions, and equipment..webp)
Gear CompareCompare up to three equipment setups against the same monster and see which wins on DPS, accuracy, and TTK.
Best SetupGet a recommended equipment setup for a monster and combat style, optionally within a GP budget.
