Enter the total power output (W,hp) and the total mass (lbs,kg) into the Calculator. The calculator will evaluate the Power To Mass Ratio. 

Power To Mass Ratio Formula

PMR = P / M


  • PMR is the Power To Mass Ratio (W/lb)
  • P is the total power output (W,hp)
  • M is the total mass (lbs,kg)

To calculate Power To Mass Ratio, divide the power output by the mass.

How to Calculate Power To Mass Ratio?

The following steps outline how to calculate the Power To Mass Ratio.

  1. First, determine the total power output (W,hp). 
  2. Next, determine the total mass (lbs,kg). 
  3. Next, gather the formula from above = PMR = P / M.
  4. Finally, calculate the Power To Mass Ratio.
  5. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

total power output (W,hp) = 50

total mass (lbs,kg) = 40