Torque to HP Calculator
Power & Torque Conversion
Calculate horsepower from torque and RPM, or find torque from horsepower. Essential for automotive and mechanical engineering.
Calculator
Formula:
HP = (Torque × RPM) / 5252
(for lb-ft and hp)
About Torque & HP
Torque: Rotational force that causes rotation
Horsepower: Rate at which work is done
Relationship:
HP = (Torque × RPM) / 5252
Features
- Torque to horsepower
- Horsepower to torque
- RPM calculation
- Multiple torque units
- Multiple power units
- Angular velocity
- Real-world examples
- Copy results
Unit Conversions
Torque:
1 lb-ft = 1.356 N-m
1 kg-m = 9.807 N-m
Power:
1 hp = 745.7 W
1 kW = 1000 W
1 PS = 735.5 W
Key Concepts
Torque: Low-end power, acceleration
Horsepower: High-end power, top speed
5252 RPM: Where HP = Torque numerically
Diesel: High torque, low RPM
Gas: Lower torque, high RPM
Applications
- Automotive engineering
- Engine performance tuning
- Electric motor selection
- Transmission design
- Dynamometer testing
- Vehicle performance analysis
- Industrial machinery
- Racing applications
Typical Values
Engine Types:
Compact Car: 100-150 hp, 100-130 lb-ft
Sports Car: 300-500 hp, 300-400 lb-ft
Diesel Truck: 300-400 hp, 600-1000 lb-ft
Motorcycle: 50-200 hp, 40-100 lb-ft
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