Power-to-Weight Ratio Calculator
Calculate the power-to-weight ratio for any vehicle, machine, or object with support for scientific and rare units.
Result
Step-by-Step Calculation:
Try These Examples
Car Engine
Typical family car engine
Power:
75 kW
Weight:
1200 kg
Expected:
0.0625 kW/kg
Racing Motorcycle
High-performance motorcycle
Power:
200 hp(I)
Weight:
180 lb
Expected:
1.11 hp(I)/lb
Electric Bicycle
Modern e-bike motor
Power:
250 W
Weight:
25 kg
Expected:
10 W/kg
How to Use
1. Enter Power
Input the numeric value and select the appropriate unit from the dropdown (mW, W, kW, MW, GW, hp(I), hp(M)).
2. Enter Weight
Input the weight value and select the unit. We support everything from micrograms to Earth mass.
3. View Results
The calculation updates in real time with a detailed breakdown showing how the result was derived.