Electric Current Conversion
Quick answer: 1 A = 1,000 mA = 1,000,000 µA, 1 kA = 1,000 A and 1 abampere (biot) = 10 A; a 16 A fuse = 16,000 mA.
Amperes, milliamperes, microamperes, kiloamperes, the abampere and the statampere – every electric current conversion.
How the calculation works
Enter a current (it may be negative) and choose the unit. The table shows the same current in nA, µA, mA, A, kA, MA and GA and in the CGS abampere and statampere.
Formula and assumptions
The base unit is the ampere (A), one of the seven SI base units (1 A = 1 C/s). 1 mA = 10⁻³ A, 1 µA = 10⁻⁶ A. In CGS units 1 abA = 10 A and 1 statA ≈ 3.3356 × 10⁻¹⁰ A.
More worked examples
- A 16 A fuse = 16,000 mA.
- An LED at 20 mA = 0.02 A.
- A 6 kA short-circuit current = 6,000 A.
- A standby current of 50 µA = 0.05 mA.
Units of current
| Unit | in A | Example |
|---|---|---|
| 1 µA | 0.000001 | watch on standby |
| 1 mA | 0.001 | LED 20 mA |
| 1 A | 1 | bulb ~0.4 A |
| 1 kA | 1,000 | short circuit |
| 1 abA | 10 | CGS-EMU |
| 1 C/s | 1 | = 1 A |
Common mistakes
- Confusing mA and MA.
- Mixing current (A) with battery capacity (Ah).
- Ignoring the difference between DC and AC (RMS) current.
Frequently asked questions
How many mA are in 1 A?
1 A = 1,000 mA.
How many A is 500 mA?
500 mA = 0.5 A.
Is Ah a unit of current?
No, the ampere-hour is a unit of charge (battery capacity): 1 Ah = 3,600 C.
What is an abampere?
The CGS-EMU unit of current (biot): 1 abA = 10 A.
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Publisher: Art-Visum d.o.o. · Content reviewed:
Calculations use common consumption rates and manufacturers' technical data sheets; results are estimates. Methodology · Standards · About