Automotive Calculations / Conversions / Formulas

We have always had hassles converting from all the different units and working out car related numbers. What we decided to do one day was to collect as much formulas / online converters as possible and put them all on one page for us so that our lives will be easier! We have found these so useful that we decided to share these conversions with the rest of the world. We will keep adding new stuff as we come across it.

Basic Power and Torque conversions in different units:

Horsepower to Kilowatts (KW)
Kilowatts to Horsepower (HP)
PS (Metric HP) to Kilowatts (KW)
Kilowatts to PS (Metric HP)
PS (Metric HP) to horsepower (HP)
Horsepower to PS (Metric HP)

Nm to Lb/ft (Torque)
Lb/ft to Nm (Torque)

Speed Conversions:

MPH / KPH
K/PH to Miles per hour (MPH)

Compression Ratio Converter:

Effective Compression Ratio Calculator - Calculates compression ratio under boost / PSI

Turbocharging Calculations / Conversions

Click here to open up our turbocharger conversions / calculations / formulas page

Or if you want to just convert from PSI to BAR and vice versa click here

Other Calculations