Calculate your airsoft rifle’s rate of fire in rounds per second (RPS). Convert RPM to RPS and estimate trigger response performance for AEG, HPA, or DSG builds.

What Is RPS in Airsoft?

RPS (Rounds Per Second) measures how many BBs your rifle fires in one second during full-auto.

It is a more useful performance metric than RPM (Rounds Per Minute) when comparing builds, because it reflects real-time firing speed.

To convert RPM to RPS:

RPS = RPM ÷ 60

For example:

  • 900 RPM = 15 RPS
  • 1,200 RPM = 20 RPS
  • 1,800 RPM = 30 RPS

This calculator performs that conversion instantly.

Why RPS Matters

Rate of fire affects:

  • Trigger response feel
  • Suppression capability
  • BB consumption rate
  • Gearbox stress
  • Field compliance (some fields limit ROF)

Higher RPS can provide faster follow-up shots, but may increase wear on internal components.

What Impacts Airsoft RPS?

Several factors influence rounds per second:

Battery Voltage

Higher voltage (e.g., 11.1v LiPo vs 7.4v) generally increases ROF.

Gear Ratio

Lower ratio gears (e.g., 13:1) spin faster and increase RPS.

Motor Speed

High-speed motors increase cycle rate.

Spring Strength

Stronger springs can reduce RPS because they require more torque to compress.

Build Type

  • Standard AEG: 12–20 RPS
  • High-speed build: 20–30 RPS
  • DSG builds: 30+ RPS
  • HPA systems: highly adjustable

Actual performance depends on overall build balance.

Typical RPS Ranges

Here are common real-world examples:

  • Entry-level AEG: 12–15 RPS
  • Upgraded 13:1 build: 18–25 RPS
  • Competitive speed build: 25–35 RPS
  • DSG build: 30–45+ RPS

Keep in mind that extreme ROF builds may reduce reliability.

Do Canadian Fields Limit RPS?

Some indoor and CQB fields place limits on rate of fire to reduce overshooting and improve safety.

Common approaches include:

  • Semi-auto only rules
  • Burst limits
  • Maximum ROF caps

Always confirm with your local field before running high-speed builds.

Common Questions About RPS

How do you calculate RPS from RPM?

Divide RPM by 60. For example, 1,200 RPM ÷ 60 = 20 RPS.

Is higher RPS better?

Not always. Higher RPS increases BB usage and gearbox stress. Balanced builds are often more reliable.

What is a good RPS for airsoft?

For most players, 15–25 RPS provides strong performance without excessive wear.

Does battery voltage increase RPS?

Yes. Higher voltage batteries can increase motor speed and therefore increase rounds per second.