Charge Calculator
⚡ Electricity & magnetism. Use the Charge formula to find charge, current, time: pick the value you want, type the others, and the answer updates as you go.
Charge30 C
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 |
|---|---|
| Charge | C |
| Current | A |
| Time | s |
Worked example
Find the charge when Current = 0.5 A, Time = 60 s.
Using Q = It: Charge = 30 C.
Frequently asked questions
What is the formula for Charge?
Q = It.
What do the letters stand for, and what units are used?
Charge in C, Current in A, Time in s.
How do you calculate charge?
Put the values into Q = It. For example, with Current = 0.5 A, Time = 60 s, charge = 30 C.
Can I solve for a different value?
Yes. In the calculator above, pick the circle next to any value (charge, current, time) and fill in the others: it rearranges the formula for you.
