Torque ↔ Power @ RPM

Convert torque and RPM into power (hp / kW / PS) — or power back into torque.


Reverse: power → torque

How it works

1

Enter torque & RPM

Power only exists at an RPM — torque alone is not power.

2

Convert

We compute power in hp, kW and PS, and show the torque in both Nm and lb-ft.

3

Or go backwards

Enter a power figure and RPM to find the torque it represents.

Frequently asked questions

How do you convert torque to horsepower?

hp = torque(lb-ft) × RPM ÷ 5252. In metric, kW = torque(Nm) × RPM ÷ 9549. The tool handles both units automatically.

Why do power and torque cross at 5252 rpm?

Because hp = lb-ft × RPM ÷ 5252 — at exactly 5252 rpm the two numbers are equal, which is why dyno graphs always intersect there.

Nm to lb-ft?

1 Nm = 0.7376 lb-ft. The result panel shows torque in both units.

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