Electric Charge Calculator
Calculate electric charge using Q = I × t. Enter current and time to find charge in coulombs.
Enter current and time.
Charge Formula
Q = I × t
Where Q is charge (coulombs), I is current (amps), t is time (seconds). 1 coulomb = 1 amp × 1 second.
Example: 2 A for 30 seconds.
Q = 2 × 30 = 60 C
Q = 2 × 30 = 60 C
FAQ
What is a coulomb?
One coulomb is the charge transported by 1 ampere of current in 1 second. It equals approximately 6.242 × 10¹⁸ electrons.
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Last updated: 2026-08-08