Physics & Technology
Power Calculator: Work and Time
Calculate power from work and time.
Power is the rate of doing work.
Formula
P=W/t. Also P=F×v (force×velocity).
Units
- Watt (W) = J/s
- 1 HP = 746 W
- 1 kW = 1,000 W
Electrical Power
P=VI=I²R=V²/R.
Frequently Asked Questions
Power formula?
P=W/t or P=F×v.
Watt vs HP?
1HP=746W. Watt=J/s.
Electrical power?
P=VI. Also P=I²R or V²/R.