Rounds Per Minute Calculator

What Is Rounds Per Minute?

Rounds per minute (RPM) measures how many shots a firearm or game weapon can fire in one minute. It helps compare weapons, plan ammunition use, and benchmark gaming fire rates.

RPM Formula

$$\text{RPM} = \frac{\text{Rounds Fired}}{\text{Time in Minutes}}$$

For burst fire with reloads, sustained RPM accounts for both firing time and reload time in each cycle:

$$\text{Sustained RPM} = \frac{\text{Rounds per Burst}}{\text{Burst Time} + \text{Reload Time}} \times 60$$

Example: 90 rounds in 60 seconds gives 90 RPM. A 30-round burst in 3 seconds with a 2.5 second reload yields a sustained rate of 343 RPM.

Simple vs Burst Mode

Use simple mode when you know total rounds and total time. Use burst mode for magazine-fed weapons or games where reload downtime lowers the effective fire rate over a full minute.

Frequently Asked Questions

How do I calculate RPM from seconds?

Divide rounds fired by time in seconds, then multiply by 60. This tool accepts seconds or minutes directly.

What is sustained RPM?

Sustained RPM is the effective rate when you fire a burst and then reload repeatedly. It includes reload downtime in each cycle.

What is session RPM?

Session RPM is the average rate across a specific number of bursts, including all firing and reload time in that session.

Does manufacturer RPM match real-world use?

Often not. Reloads, overheating, and shooter skill reduce the practical rate below theoretical maximums.

Can I use this for video games?

Yes. Enter magazine size as rounds per burst, time to empty the mag as burst duration, and weapon reload time to estimate shots per minute.

Report

Rounds Per Minute Calculator

What Is Rounds Per Minute?

RPM Formula

Simple vs Burst Mode

Frequently Asked Questions

Related Tools

Recent Visits