Free online hp to whp calculator – Convert horsepower to wheel horsepower. Simply input the horsepower value and select the drivetrain type and get accurate results in wheel horsepower units.
HP to WHP formula
You can use the following formula for horsepower (hp) to wheel horsepower (whp)
WHP = HP * (1 – DL/100)
- WHP = wheel horsepower
- HP = horsepower
- DL = drivetrain loss
Drivetrain loss based on selected type
|Drivetrain type||drive loss percentage|
How to calculate hp to whp?
To convert horsepower (hp) to wheel horsepower (whp), you can use a conversion factor that takes into account the drivetrain losses.
For example – you have a car with 280 horsepower and a drivetrain loss of 15% then calculate power in wheel horsepower(whp)
whp = 280 hp x (1 – 0.15)
whp = 280 hp x 0.85
whp = 238
the wheel horsepower of the car for a 15% drivetrain loss, would be 238 whp
HP to WHP Table.
|HP||Front-wheel||Rear- wheel||All Wheel|
|100 hp||90 whp||85 whp||75 whp|
|200 hp||180 whp||170 whp||150 whp|
|300 hp||270 whp||255 whp||225 whp|
|400 hp||360 whp||340 whp||300 whp|
|500 hp||450 whp||425 whp||375 whp|
|600 hp||540 whp||510 whp||450 whp|
|700 hp||630 whp||595 whp||525 whp|
|800 hp||720 whp||680 whp||600 whp|
|900 hp||810 whp||765 whp||675 whp|
|1000 hp||900 whp||850 whp||750 whp|
|1500 hp||1350 whp||1275 whp||1125 whp|