ELECTRICAL
Electric charge
Electric charge and ampere-hour capacity.
Try a decimal, 1e-9, 1/3, or 5 1/2.
Result0.000277778 Ah1 C = 0.000277778 Ah
EVERYDAY · ENGINEERING · SCIENCE
C to Ah Converter
Convert coulomb (C) to ampere-hour (Ah). Enter a value for an instant result, or use the examples and reverse conversion below.
520units ready to convert
HOW IT IS CALCULATED
Convert through coulomb
Enter a coulomb value to calculate ampere-hour with full internal precision before display rounding.
Display PrecisionAuto · 6 significant digits
Auto trims unnecessary zeroes and uses scientific notation for extreme magnitudes. Use Digits to set the display precision; calculations retain full precision.
QUICK REFERENCE
All units in this quantity
| Unit | Symbol | Converted value |
|---|---|---|
| nanocoulombfrom C | nC | 1000000000 |
| microcoulombfrom C | µC | 1000000 |
| millicoulombfrom C | mC | 1000 |
| coulombfrom C | C | 1 |
| milliampere-hourfrom C | mAh | 0.277778 |
| ampere-hourfrom C | Ah | 0.000277778 |
| elementary chargefrom C | e | 6.24151e18 |
SI symbols follow international notation. U.S. and Imperial measures are labelled separately where their values differ.
C to Ah Conversion Reference
Coulomb (C) and ampere-hour (Ah) are units of electric charge. Use this page to convert in either direction.
Conversion Examples
| Coulomb (C) | Ampere-hour (Ah) |
|---|---|
| 1 C | 0.000277778 Ah |
| 5 C | 0.00138889 Ah |
| 10 C | 0.00277778 Ah |
| 100 C | 0.0277778 Ah |
Examples are rounded to 6 significant digits. The interactive converter retains full calculation precision; change Display Precision to see more digits.
Reverse Conversion
Ah to C (ampere-hour to coulomb)