OSRS DPS Calculator
Audit effective levels, attack and defence rolls, hit chance, max hit and DPS.
Calculate OSRS accuracy, max hit and DPS
31.25% accuracy · 48 max hit · 2.4 seconds per attack
Calculation steps +
Effective Attack = floor((99 + 19) × 1.2) + style bonus + 8 = 152.
Attack roll = 152 × (100 + 64) = 24,928. Enemy roll uses Defence level 250 and style defence 90.
DPS = hit chance × max hit ÷ 2 ÷ (4 ticks × 0.6 seconds).
OSRS Wiki combat formulas · reviewed 2026-09-05. Presets are local convenience records; encounter phases, immunities, set effects, special attacks, attack styles, spell scaling, and monster-specific modifiers still need manual adjustment.
What the OSRS DPS Calculator calculates
The OSRS DPS Calculator is the combat cluster’s flagship. It connects player skill, boost, prayer, style, equipment bonuses, weapon speed, and a local enemy preset in an auditable sequence rather than returning an unexplained rating.
Melee, Ranged, and Magic are selectable. Presets fill useful starting numbers, while the exposed bonuses let advanced players correct an exact setup without waiting for a full equipment database update.
Use the DPS Calculator
- 1
Choose style and enemy before applying a weapon preset.
- 2
Enter the complete attack and damage bonuses for the setup.
- 3
Inspect rolls, hit chance and max hit before trusting the DPS summary.
A result you can audit
Each section documents the calculation and the limits that apply to this specific gameplay problem.
How This OSRS DPS Calculator Works01+
Attack roll equals effective Attack × (equipment attack bonus + 64). Enemy defence roll uses (Defence level + 9) × (style defence bonus + 64). The two-roll branch determines hit chance.
Expected damage per attack is accuracy × max hit ÷ 2. Dividing by weapon ticks × 0.6 seconds gives DPS; enemy Hitpoints divided by DPS gives a simple time-to-kill estimate.
Worked Example for the OSRS DPS Calculator02+
With effective level 156, a four-tick weapon attacks every 2.4 seconds. If accuracy is 75% and max hit is 48, expected damage per swing is 18 and baseline DPS is 7.5 before monster phases or special effects.
How to Use the OSRS DPS Calculator Result03+
Compare setups only against the same monster and assumptions. A nominal DPS lead can disappear when movement, overkill, immunity, attack range, special energy, or supply use changes the encounter.
OSRS DPS Calculator Accuracy and Limitations04+
Preset gear entries do not assemble every set effect. The current Magic path is a baseline, and special attacks, bolt procs, raid multipliers, Slayer bonuses, attack-style mismatches, and defence drains need additional reviewed inputs.
OSRS DPS audit trail
Every output corresponds to a visible stage in the implementation.
| Stage | Inputs | Output |
|---|---|---|
| Accuracy | Attack and defence rolls | Hit chance |
| Damage | Effective level and strength | Max hit |
| Timing | Weapon ticks × 0.6 | Seconds/attack |
| DPS | Accuracy × average hit ÷ time | Damage/second |
Official references used for this page
OSRS calculator FAQs
Clear answers about calculations, data, independence, privacy and practical use.
How does OSRS attack speed affect DPS?
Each game tick is 0.6 seconds, so a four-tick weapon attacks every 2.4 seconds before encounter interruptions.
What defence value does the OSRS DPS tool use?
The selected monster supplies a Defence level and style-specific equipment bonus for its defence roll.
Why is OSRS expected damage half the max hit?
A successful ordinary hit is modeled across the integer range from zero through max hit, whose mean is max hit divided by two.
Does the OSRS DPS estimate include movement?
No. It models uninterrupted attacks; pathing, mechanics, phases, eating, and downtime can lower real encounter DPS.