Electric Current Converter

Convert amps, milliamps, microamps, nanoamps and kiloamps.

500 mA=0.5 A
1 mA = 0.001 A 1 A = 1,000 mA

All conversions

500,000,000
Nanoampere nA
500,000
Microampere µA
500
Milliampere mA
0.5
Ampere A
0.0005
Kiloampere kA

Common electric current conversions

mA to A
mAA
10.001
50.005
100.01
250.025
500.05
1000.1
10001
A to mA
AmA
11,000
55,000
1010,000
2525,000
5050,000
100100,000
10001,000,000
µA to mA
µAmA
10.001
50.005
100.01
250.025
500.05
1000.1
10001
kA to A
kAA
11,000
55,000
1010,000
2525,000
5050,000
100100,000
10001,000,000

Unit reference

UnitSymbolEquals
NanoamperenA1 nA = 1e-9 A
MicroampereµA1 µA = 0.000001 A
MilliamperemA1 mA = 0.001 A
AmpereAbase unit
KiloamperekA1 kA = 1,000 A

About this electric current converter

Convert electric current between nanoamperes, microamperes, milliamperes, amperes and kiloamperes. It is a quick helper for circuit design, battery and charger specs, fuses and datasheets.

See also the voltage converter, resistance converter and power converter (P = V × I).

Chargers & batteries

Convert charging currents like 500 mA or 2,400 mA into amps to compare adapters and cables.

Electronics design

Interpret microamp sleep currents and milliamp LED currents on datasheets.

Electrical installations

Read breaker, fuse and fault-current ratings in A and kA.

Tips for accurate results

Mind mA vs A

1 A = 1,000 mA. A phone charger rated 2 A delivers up to 2,000 mA.

Battery capacity is different

mAh measures charge capacity, not current. To estimate runtime, divide capacity (mAh) by the current draw (mA).

Frequently asked questions

How many milliamps are in an amp?

There are 1,000 milliamperes in one ampere.

How do I convert mA to A?

Divide the milliamps by 1,000. For example, 250 mA is 0.25 A.

How many microamps are in a milliamp?

One milliamp is 1,000 microamps.

What is a kiloampere?

A kiloampere (kA) is 1,000 amperes, used for short-circuit and fault currents in power systems.

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