Coulombs to Millicoulombs Converter
Convert coulombs (C) to millicoulombs (mC) as you type — 1 C = 1,000 mC. Switch units, change the precision or copy the result.
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How to use this tool
Steps for using the Unit Converter.
- Enter a value in From — coulombs are already selected.
- The result in millicoulombs appears instantly. Change either unit to convert to anything else in electric charge.
- Use the swap button for the reverse conversion, and set the decimal places you need.
- Turn on Show formula to see the calculation, then copy or share the result.
Example
1 C to mC
1 CmC = 1 × 1000 = 1,000 mCCommon use cases
- Battery and power-bank capacities.
- Electrochemistry and electroplating.
- Electrostatics problems.
Coulombs to Millicoulombs conversion table
| Coulomb (C) | Millicoulomb (mC) |
|---|---|
| 0.1 C | 100 mC |
| 0.5 C | 500 mC |
| 1 C | 1,000 mC |
| 2 C | 2,000 mC |
| 3 C | 3,000 mC |
| 4 C | 4,000 mC |
| 5 C | 5,000 mC |
| 10 C | 10,000 mC |
| 15 C | 15,000 mC |
| Coulomb (C) | Millicoulomb (mC) |
|---|---|
| 20 C | 20,000 mC |
| 25 C | 25,000 mC |
| 50 C | 50,000 mC |
| 75 C | 75,000 mC |
| 100 C | 100,000 mC |
| 250 C | 250,000 mC |
| 500 C | 500,000 mC |
| 1,000 C | 1,000,000 mC |
Values rounded to 6 decimal places.
Related conversions
The units
- Coulomb (C)
- 1 A·s, the SI unit of charge. Part of the SI system.
- Millicoulomb (mC)
- 1/1000 C. Part of the Metric system.
How to convert coulombs to millicoulombs
Electrostatics and electrochemistry problems often work in millicoulombs.
To convert coulombs to millicoulombs, use mC = C × 1000. One coulomb equals 1,000 millicoulombs, and one millicoulomb equals 0.001 coulombs.
Coulomb (C): 1 A·s, the SI unit of charge. Millicoulomb (mC): 1/1000 C.
All electric charge units are on the electric charge converter.
Limitations
- Results are rounded to the decimal places you choose; the calculation itself keeps full precision.
Frequently asked questions
How many millicoulombs are in a coulomb?
1 C = 1,000 mC. Multiply coulombs by 1000 (or use mC = C × 1000).
How do I convert coulombs to millicoulombs?
Use mC = C × 1000. For example, 1 C = 1,000 mC and 10 C = 10,000 mC.
How many coulombs is 1 mAh?
3.6 C (0.001 A × 3,600 s).
Can I convert mAh to Wh here?
Not directly — it needs the battery voltage. Multiply Ah by volts: 5 Ah × 3.7 V = 18.5 Wh.