Fire Rate

The inverse of this is called gun cycle time, which instead measures seconds per bullet.

Math

The final Fire Rate change is calculated with separate rules for bonuses and slows: positive bonuses (buffs) are additive, while negative modifiers (slows) are multiplicative.

the total change to Fire Rate cannot be reduced below -50%. Any calculated value lower than this will be capped at -50%.

The simplified formula is:

: Fire Rate Modifier=(Sum of Bonuses)−(1−Total Slows)

Where:

• Sum of Bonuses = All positive buffs added together (e.g., 0.25+0.20)
• Total Slows = The result of multiplying the remaining values of each slow: (1−Slow1)×(1−Slow2)×…

Examples

Combined Bonuses and Slows

For an example with multiple sources:

• +18% Fire Rate from Ricochet
• +20% Fire Rate from Swift Striker
• -25% Fire Rate Slow from Sinclair‘s Vexing Bolt
• -28% Fire Rate Slow from an enemy’s Suppressor

First, calculate the groups separately:

• Bonuses: 0.18+0.20=0.38
• Slows: (1−0.25)×(1−0.28)=0.75×0.72=0.54

Then combine them in the final formula:

: Final=0.38−(1−0.54) : Final=0.45−0.46=−0.01

This results in a -1.00% final change. The in-game UI typically rounds this value to the nearest whole number, displaying -1%.

Maximum Slow Reduction

For an example with only slows applied:

• No positive Fire Rate bonuses (0)
• -25% Fire Rate Slow from Sinclair‘s Vexing Bolt
• -28% Fire Rate Slow from an enemy’s Suppressor
• -32% Fire Rate Slow from an enemy’s Rusted Barrel

The calculation is:

: 0−(1−(0.75×0.72×0.68)) : 0−(1−0.3672)=−0.6328

This results in a calculated slow of -63.28%. Due to the cap, this value is raised to the maximum reduction of -50%.

Base Fire Rate

Values referenced from Hero Comparison Table.

Notes:

• Due to a bug, The Doorman‘s and Paige‘s weapons have incorrect fire rate values listed in the game UI. The values listed here are accurate.
• McGinnis‘ and Victor‘s weapons have a wind-up time before reaching maximum fire rate.

Base Fire Rate

Base Alt-Fire Fire Rate

Sources

Fire Rate

• Burst Fire additionally increases Fire Rate by +32%% for 4.5 seconds after hitting an enemy hero.
• Heroic Aura‘s Fire Rate bonus is doubled for nearby player minions within its 35m radius.

Fire Rate Slow

Map spawns

• Golden Statues can provide a permanent increase: +1.5% Fire Rate before 10 minutes, +2% Fire Rate before 30 minutes, or +2.5% Fire Rate after 30 minutes.
• Powerup runes can provide a temporary Gun buff that provides +12% to +35% Fire Rate for 160 seconds (scaling with game time from 5 to 40 minutes).