Ampere hours to Coulombs
Convert ampere hours to coulombs (A·h to C). 1 A·h = 3,600 C. Use the calculator, formula and conversion table.
How to convert ampere hours to coulombs
Multiply the amount in ampere hours by 3,600 to get coulombs. The displayed factor and results are rounded to 12 significant digits.
C = A·h × 3,600Worked example
1 A·h = 3,600 C. Change the amount in the calculator above to use your own value.
Units and assumptions
Uses coulombs. One ampere hour is 3,600 C and one milliampere hour is 3.6 C. The positive elementary-charge magnitude e is exactly 1.602176634 × 10⁻¹⁹ C. Signed charge is retained; mAh alone does not specify battery energy. Values are rounded to 12 significant figures for display.
Calculator results use floating-point arithmetic and are rounded for display. The reference table below uses up to 12 significant digits.
Ampere hours to Coulombs table
| Ampere hours (A·h) | Coulombs (C) |
|---|---|
| 0 | 0 |
| 1 | 3,600 |
| 5 | 18,000 |
| 10 | 36,000 |
| 25 | 90,000 |
| 100 | 360,000 |
| 1,000 | 3,600,000 |
About this conversion
What is the formula for ampere hours to coulombs?
C = A·h × 3,600. Multiply the amount in ampere hours by 3,600 to get coulombs. The displayed factor and results are rounded to 12 significant digits.
How do I convert back to ampere hours?
Use the coulombs to ampere hours calculator to reverse this conversion. You can also use Swap units in the calculator above.
Can I use a different pair of units?
Choose another unit in the calculator, or open the electric charge converter to browse all supported pairs.