HP to Torque Calculator
Easily convert horsepower to torque using our hp to torque calculator. Get accurate results in seconds for engines, motors, and mechanical systems. This guide helps you understand, calculate, and apply hp to torque conversions correctly.
Horsepower to Torque Converter
How to Use HP to Torque Calculator
Follow these simple steps to use the hp to torque calculator:
- Step 1: Enter Horsepower (HP)
Input the horsepower value of your engine or motor. - Step 2: Enter RPM (Revolutions Per
Minute)
Provide the operating speed in RPM. Torque depends on speed. - Step 3: Click Calculate
The calculator instantly converts HP to torque. - Step 4: View Result
The result shows torque in lb-ft (or Nm depending on settings).
Tips:
- Always use accurate RPM values.
- Use consistent units (HP and RPM).
- Check if output is in lb-ft or Nm.
How to Convert HP to Torque
To convert horsepower to torque, you need to know the rotational speed (RPM). Use this standard formula:
Step-by-Step Example:
Given:
HP = 100
RPM = 2000
Step 1: Multiply HP by 5252
100 × 5252 = 525,200
Step 2: Divide by RPM
525,200 ÷ 2000 = 262.6 lb-ft
Final Answer:
Torque = 262.6 lb-ft
Key Notes:
- Higher RPM reduces torque for the same HP.
- Lower RPM increases torque.
- This formula works for mechanical systems and engines.
HP to Torque Conversion Chart (at 1800 RPM)
Note: Values depend on RPM. This chart assumes 1800 RPM.
| Horsepower (HP) | Torque (lb-ft) |
|---|---|
| 1 HP | 2.92 lb-ft |
| 5 HP | 14.6 lb-ft |
| 10 HP | 29.2 lb-ft |
| 20 HP | 58.4 lb-ft |
| 50 HP | 146.0 lb-ft |
| 75 HP | 219.0 lb-ft |
| 100 HP | 292.0 lb-ft |
| 150 HP | 438.0 lb-ft |
| 200 HP | 584.0 lb-ft |
| 300 HP | 876.0 lb-ft |
FAQs About HP to Torque Calculator
It is a tool that converts horsepower into torque using RPM.
Torque depends on speed. Without RPM, you cannot calculate torque accurately.
It is a conversion factor derived from unit relationships between HP and torque.
Yes. Use the formula: Torque = (HP × 5252) ÷ RPM.
Yes. Lower RPM produces higher torque for the same horsepower.
Most calculators use lb-ft. Some also support Nm.
Yes. It works for both electric and mechanical systems.
Yes. Use: HP = (Torque × RPM) ÷ 5252.
Torque decreases if horsepower stays constant.
It is used in automotive, mechanical engineering, and motor design.