This page converts microcoulombs into coulombs using the factor 1e-06, and shows the reverse figure alongside it. Both units measure the total quantity of electricity, including battery capacity, which is why one number does the whole job.
The coulomb is the SI unit of electric charge: one ampere flowing for one second. One micro coulomb is one millionth of a coulomb (1e-6 coulombs).
Milliamp-hours are charge, not energy. Two batteries both rated 3,000 mAh store different amounts of energy if their voltages differ, which is why power banks advertise mAh at cell voltage and deliver less at USB voltage. Below the calculator there is a step table for the values people look up most, and a second table putting real the total quantity of electricity, including battery capacity figures into coulombs so the number you get has something to be compared against.
The formula
microcoulombs- The amount you are converting, in microcoulombs
1e-06- The exact number of coulombs in one microcoulomb
coulombs- The converted result
How it works, step by step
- Enter the value in microcoulombs.
- It is multiplied by 1e-06, the exact factor between the two units.
- The answer is shown in coulombs, with the reverse conversion beneath it.
- Check the reference table if you want a figure of comparable size.
Worked examples
A larger figure: 100 µC in coulombs
Take a larger figure, roughly 100 µC. The conversion is a single multiplication — 100 × 1e-06 — giving 0.0001 C. Because the relationship is proportional, doubling the input doubles the answer to 0.0002 C.
A round figure: 1 µC in coulombs
A round figure comes to about 1 µC. Multiplying by the factor: 1 × 1e-06 = 1e-06 C. Dividing the answer back by 1e-06 returns the figure you started with, which is the quickest way to check you have the factor the right way up.
How to read your score
Frequently asked questions
How many coulombs are in one microcoulomb?
Exactly 1e-06. Every figure on this page is that one number multiplied by your input, so the only rounding is at the display step.
What is the formula to convert microcoulombs to coulombs?
coulombs = microcoulombs × 1e-06. Reversed, microcoulombs = coulombs ÷ 1e-06, which is the same as multiplying by 1,000,000.
Which is the bigger unit, the microcoulomb or the coulomb?
The coulomb. One microcoulomb is only 1e-06 of a coulomb, so it takes 1e+06 microcoulombs to make one coulomb.
What does this quantity actually measure?
Both units measure the total quantity of electricity, including battery capacity. That is why a single factor is enough: there is no temperature offset and no material property involved, unlike conversions that cross between different quantities.
What is a microcoulomb?
One micro coulomb is one millionth of a coulomb (1e-6 coulombs).
What is a coulomb?
The coulomb is the SI unit of electric charge: one ampere flowing for one second.
Why does my answer differ from another converter?
Almost always because the other tool rounded the factor before multiplying. This page keeps full double precision through the calculation and rounds only for display, and it prints the factor it used so you can see where any difference came from.
Microcoulombs to coulombs reference tables
| Microcoulombs | Coulombs |
|---|---|
| 0.5 µC | 5e-07 C |
| 1 µC | 1e-06 C |
| 2 µC | 2e-06 C |
| 3 µC | 3e-06 C |
| 5 µC | 5e-06 C |
| 10 µC | 1e-05 C |
| 20 µC | 2e-05 C |
| 25 µC | 2.5e-05 C |
| 50 µC | 5e-05 C |
| 75 µC | 7.5e-05 C |
| 100 µC | 0.0001 C |
| 250 µC | 0.00025 C |
| 500 µC | 0.0005 C |
| 1000 µC | 0.001 C |
| 5000 µC | 0.005 C |
Exact factor: 1 microcoulomb = 1e-06 coulombs.
| Quantity | µC | C |
|---|---|---|
| AA alkaline cell | 9e+09 µC | 9000 C |
| Phone battery, 4000 mAh | 1.44e+10 µC | 1.44e+04 C |
| Laptop battery, 60 Wh at 11.1 V | 1.946e+10 µC | 1.946e+04 C |
| Car battery, 60 Ah | 2.16e+11 µC | 2.16e+05 C |
| Camera flash capacitor | 5e+04 µC | 0.05 C |
| Lightning strike | 1.5e+07 µC | 15 C |
Published reference values, converted with the same factor this page uses.