Ampere hours to coulombs calculator
Convert ampere-hours (Ah) to coulombs (C) instantly with C = Ah × 3600. Includes mAh conversion, formulas, and battery capacity examples.

electrical capacity conversion
To change ampere-hours to coulombs, take 3600 times: C = Ah / 3600. Multiplier of milliampere-hours: C = mAh 3.6. This is directly out of the meaning of current and time.
Formula & Table Summary:
C = Ah × 3600
C = mAh × 3.6
Ah to the Coulomb calculator
Ampere Hours to Coulombs Calculator is used to convert the electrical capacity ampere-hours of capacity (Ah) to coulombs (C). An ampere-hour is the quantity of charge transferred by one coulomb per second (an ampere) as time passes (in this case, one hour), or 3600 coulombs. The conversion equation can be: C = Ah * 3600. In milliampere-hours, C = mAh 3.6. This conversion is very common in the estimation of battery capacity and power-bank rating, as well as in laboratory experiments when it is necessary to convert data of a storage of energy in an electric charge quantity. Regardless of whether you are a manufacturer of small electronic devices or have large-scale energy storage systems, Ah to C calculations are essential when it comes to analyzing performance, charging, energy regulation, and control. The tool guarantees engineers, students, and hobbyists prompt, accurate results.
ampere hours to coulombs
| Ampere-hours (Ah) | Milliampere-hours (mAh) | Coulombs (C) |
|---|---|---|
| 0.001 | 1 | 3.6 |
| 0.5 | 500 | 1,800 |
| 1 | 1,000 | 3,600 |
| 1.5 | 1,500 | 5,400 |
| 2 | 2,000 | 7,200 |
Frequently Asked Questions - Ampere hours to coulombs calculator:
How do I convert Ah to coulombs?
Multiply Ah by 3600 to get C.
How do I convert mAh to coulombs?
Multiply mAh by 3.6 to get C.
Why multiply by 3600?
Because 1 hour = 3600 seconds and 1 A = 1 C/s.
What does 1 Ah equal in coulombs?
1 Ah equals 3600 C.
Is Ah a measure of energy or charge?
Ah measures charge, not energy.
Does voltage affect the conversion?
No, Ah to C conversion is independent of voltage.
Can I use this for any battery type?
Yes, the unit conversion is universal.
Is 1 mAh equal to 3.6 C?
Yes, exactly 3.6 coulombs.
Why use coulombs instead of Ah?
Coulombs are the SI unit of electric charge.
Can I convert C back to Ah?
Yes, divide C by 3600 to get Ah.
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