# Power and Efficiency Calculator

The Power and Efficiency Calculator is provided in support of our Physics Tutorials on Work, Energy and Motion which explores Motion, the different types of energy, kinetic energy, gravitational potential energy, elastic potential energy. power and efficiency with practical working examples and formula. A list of the supporting Work and Energy Physics Tutorials is available at the bottom of this page. This calculator will calculate:

1. Output power of a machine
2. Efficiency of a machine when input and output parameters are given
 🖹 Normal View🗖 Full Page View Calculator Precision (Decimal Places)0123456789101112131415 Moving Force (F) N Moving Distance (Δx) m Time of Motion (t) s Total or Input Power (Ptot) W Total or Input Energy (Etot) J
 Output Power (Pout) W Efficiency [ Equation 1 ] (e) Efficiency [ Equation 2 ] (e)

Note:

1. When an object moves vertically, the distance Δx represents the height h. Also, sometimes the force F needed to move an object represents the weight of the object itself.
2. Efficiency has no associated unit

Please note that the formula for each calculation along with detailed calculations is shown further below this page. As you enter the specific factors of each force calcualtion, the Power and Efficiency Calculator will automatically calculate the results and update the formula elements with each element of the force calculation. You can then email or print this power and efficiency calculation as required for later use.

We hope you found the Power and Efficiency Calculator useful, if you did, we kindly request that you rate this calculator and, if you have time, share to your favourite social network. This allows us to allocate future resource and keep these Physics calculators and educational material free for all to use across the globe.

Pout = F × ∆x/t
Pout = × /
Pout = W (Watt)

## Efficiency Formula and Calculation [ Equation 1 ]

Equation 1 provides efficiency as a measurement of Input Power Ptot and the Output Power Pout calculated in the previous equation.

e = Pout/Ptot × 100%
e = / × 100%
e =

## Efficiency Formula and Calculation [ Equation 2 ]

Equation 2 provides efficiency as a measurement of Input Energy Etot

e = F × ∆x/Etot × 100%
e = × / × 100%
e = / × 100%
e =

## Physics Calculators

You may also find the following Physics calculators useful.