Short answer
Electric charge is a property or quantity measured in coulombs. Electric current is how much charge flows past a point per second, measured in amperes. A charged object can have charge without a sustained current. 1 2
Charge is the quantity being moved; current is the flow rate of that charge.
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At a glance
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| Question | Electric charge | Electric current |
|---|---|---|
| What is measured? | Amount or property of charge | Charge flow per time |
| SI unit | Coulomb | Ampere = coulomb per second |
| Can exist at rest? | Yes | Requires charge movement |
The table summarizes the cited definitions and the article’s stated scope. 1 2
What each thing is
Electric charge. A property of matter associated with electric interaction, measured in coulombs. 1
Electric current. The rate at which electric charge passes through a surface or circuit point, measured in amperes. 2
Key differences
Current is defined by charge crossing a chosen boundary over time. Charges may be positive or negative; conventional current direction follows positive charge flow, even when electrons move the other way in a metal. 1 2
How to tell them apart
If the question asks how much charge an object carries, answer in coulombs. If it asks how rapidly charge moves through a wire, answer in amperes. 1 2
Where they overlap
Current requires moving charge. Both appear in circuit and electrostatics calculations, and charge conservation constrains how current splits at junctions. 1 2
Edge cases
A static buildup on a balloon contains charge but essentially no steady current. A brief spark is a current over a short interval. In electrolytes, ions rather than electrons can carry current. 1 2
Why the distinction exists
The distinction is analogous to water volume versus flow rate, though the analogy should not replace circuit physics. 1 2
Common misconceptions
An ampere is not a unit of stored charge; it is a coulomb-per-second rate. 1 2
Examples
A capacitor can store separated charge. When it discharges through a resistor, charge moves and a transient current flows. 1 2
Sources
Sources checked October 3, 2026.
- OpenStax — Static Electricity and Charge: Conservation of Charge. Electric charge; Conservation of charge.
- OpenStax — Current. Current and circuit.