Power Calculator
📐 Physics of Matter. Use the Power formula to find power, work, time: pick the value you want, type the others, and the answer updates as you go.
Power100 W
Pick the ○ next to the value you want to find, fill in the others, and it solves as you type.
What each letter means
| Quantity | Unit |
|---|---|
| Power | W |
| Work | J |
| Time | s |
Worked example
Find the power when Work = 1000 J, Time = 10 s.
Using P = W/t: Power = 100 W.
Frequently asked questions
What is the formula for Power?
P = W/t.
What do the letters stand for, and what units are used?
Power in W, Work in J, Time in s.
How do you calculate power?
Put the values into P = W/t. For example, with Work = 1000 J, Time = 10 s, power = 100 W.
Can I solve for a different value?
Yes. In the calculator above, pick the circle next to any value (power, work, time) and fill in the others: it rearranges the formula for you.
