Electric Charge Converter
Convert between electric charge units including Coulombs, Ampere-hours, elementary charges, and more.
1 C =
0.277778
Milliampere-hours (mAh)
1 C in all units
Coulombs (C)1
Millicoulombs (mC)1,000
Microcoulombs (uC)1,000,000
Nanocoulombs (nC)1.000000e+9
Picocoulombs (pC)1.000000e+12
Ampere-hours (Ah)0.000278
Milliampere-hours (mAh)0.277778
Elementary charges (e)6.242197e+18
Franklins (Fr)2.997602e+9
Quick Reference
1 Coulomb
= 1 A*s
1 Ah
= 3600 C
Symbol
Q (charge)
Electron
= 1.602e-19 C
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Editorial Note
MyCalcBuddy Editorial Team
This page is maintained as an educational calculator reference.
📚
Formula Source: NIST Guide to SI Units
by National Institute of Standards
🔄Last reviewed: May 2026
✓Formula checks are based on standard references and internal QA review.