Electric Charge conversion

Convert Coulomb to Milliampere-hour

1 coulomb (C) equals 0.277777777778 milliampere-hour (mAh). Enter any value below to convert from C to mAh.

Enter a value and choose units. Results update instantly.

1 C = 0.2777777778 mAh

All Charge units

From 1 C
UnitValue
Nanocoulomb nC 999,999,999.9999998808
Microcoulomb μC 1,000,000
Millicoulomb mC 1,000
Coulomb C 1
Milliampere-hour mAh 0.2777777778
Ampere-hour Ah 0.0002777778
Elementary charge e 6.2415090745e18
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Formula

C to mAh conversion formula

Use this relationship for a direct conversion:

mAh = C x 0.277777777778

Worked example

2 C = 0.5555555556 mAh.

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

Quick reference

Coulomb to Milliampere-hour table

Coulomb (C)Milliampere-hour (mAh)
0.010.0027777778
0.10.0277777778
10.2777777778
20.5555555556
51.3888888889
102.7777777778
256.9444444444
5013.8888888889
10027.7777777778
1,000277.7777777778

From unit

About the coulomb

One ampere-second of electric charge.

Symbol: C

To unit

About the milliampere-hour

Charge from one milliampere sustained for one hour.

Symbol: mAh

Keep converting

Related conversions

Milliampere-hour to CoulombReverse this conversion Coulomb to NanocoulombC to nCCoulomb to MicrocoulombC to μCCoulomb to MillicoulombC to mCCoulomb to Ampere-hourC to AhCoulomb to Elementary chargeC to e

Source

Conversion standard

Definitions are checked against BIPM SI Brochure: coulomb and elementary charge. Calculations use full internal precision before display rounding.

View the complete electric charge converter

Questions

C to mAh FAQ

How do you convert coulomb to milliampere-hour?

Use the formula mAh = C x 0.277777777778. 1 coulomb (C) equals 0.277777777778 milliampere-hour (mAh).

Is the C to mAh conversion exact?

Both unit definitions use exact factors. Only the displayed decimal may be rounded.