Unit converter

Electric Charge converter

Convert coulombs, ampere-hours, milliampere-hours, and elementary charges.

Enter a value and choose units. Results update instantly.

1 Ah = 3,600 C

All Charge units

From 1 Ah
UnitValue
Nanocoulomb nC 3.6e12
Microcoulomb μC 3,600,000,000
Millicoulomb mC 3,600,000
Coulomb C 3,600
Milliampere-hour mAh 1,000
Ampere-hour Ah 1
Elementary charge e 2.2469432668e22
Recent conversions
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Common tasks

Ampere-hour to CoulombAh to C Milliampere-hour to CoulombmAh to C Coulomb to Elementary chargeC to e Coulomb to Ampere-hourC to Ah Millicoulomb to CoulombmC to C Microcoulomb to NanocoulombμC to nC

Reference

How electric charge conversion works

Electric charge can be expressed directly in coulombs or as current sustained over time. Battery ampere-hour ratings represent charge, not energy, unless voltage is also known.

Values are converted to coulomb first, then from that reference into the requested unit. Keeping a single documented reference reduces inconsistent pair-by-pair constants.

Accuracy note: Ampere-hour relationships and the elementary charge value are exact.

Unit reference

UnitSymbol1 unit in C
NanocoulombnC0.000000001
MicrocoulombμC0.000001
MillicoulombmC0.001
CoulombC1
Milliampere-hourmAh3.6
Ampere-hourAh3,600
Elementary chargee1.602176634e-19

Long-tail directory

Every indexed conversion

Choose a source unit to see all available destinations.

From Nanocoulomb (nC)
Nanocoulomb to MicrocoulombNanocoulomb to MillicoulombNanocoulomb to CoulombNanocoulomb to Milliampere-hourNanocoulomb to Ampere-hourNanocoulomb to Elementary charge
From Microcoulomb (μC)
Microcoulomb to NanocoulombMicrocoulomb to MillicoulombMicrocoulomb to CoulombMicrocoulomb to Milliampere-hourMicrocoulomb to Ampere-hourMicrocoulomb to Elementary charge
From Millicoulomb (mC)
Millicoulomb to NanocoulombMillicoulomb to MicrocoulombMillicoulomb to CoulombMillicoulomb to Milliampere-hourMillicoulomb to Ampere-hourMillicoulomb to Elementary charge
From Coulomb (C)
Coulomb to NanocoulombCoulomb to MicrocoulombCoulomb to MillicoulombCoulomb to Milliampere-hourCoulomb to Ampere-hourCoulomb to Elementary charge
From Milliampere-hour (mAh)
Milliampere-hour to NanocoulombMilliampere-hour to MicrocoulombMilliampere-hour to MillicoulombMilliampere-hour to CoulombMilliampere-hour to Ampere-hourMilliampere-hour to Elementary charge
From Ampere-hour (Ah)
Ampere-hour to NanocoulombAmpere-hour to MicrocoulombAmpere-hour to MillicoulombAmpere-hour to CoulombAmpere-hour to Milliampere-hourAmpere-hour to Elementary charge
From Elementary charge (e)
Elementary charge to NanocoulombElementary charge to MicrocoulombElementary charge to MillicoulombElementary charge to CoulombElementary charge to Milliampere-hourElementary charge to Ampere-hour

Primary source

Definitions and standards

Conversion constants and definitions for this category are checked against BIPM SI Brochure: coulomb and elementary charge.

See Methods & sources for rounding rules, exact-value handling, and review policy.

Questions

Electric Charge FAQ

What is the reference unit for electric charge conversions?

ConvertWin uses coulomb (C) as the internal reference for this category, then converts to the selected output unit.

How accurate is this electric charge converter?

Ampere-hour relationships and the elementary charge value are exact.