milliamps to microamps | Exact Decimal + Formula

1 Milliampere = 1000 Microampere

One milliampere equals exactly a thousand microamperes. Real-world use: phone charging (500–3000 ma), led current, and electronics. This page expresses those values in microamperes, which is used for sleep-mode electronics, sensors, and biomedical devices. Enter any value above — the result updates instantly, and a 1–1000 reference table follows below.

About Milliampere and Microampere

Milliampere (mA)

A milliampere is one-thousandth of an ampere.

Where it's used: Phone charging (500–3000 mA), LED current, and electronics.

Microampere (µA)

A microampere is one-millionth of an ampere.

Where it's used: Sleep-mode electronics, sensors, and biomedical devices.

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Precision

Formula

µA = mA × 1000

To convert Milliampere to Microampere, use the formula displayed above.

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Milliampere to Microampere: Quick Reference Table

Milliampere	Microampere (Decimal)	Fraction	Real-world equivalent
0.001 mA	1 µA	-	standard single unit scale
0.01 mA	10 µA	-	multiple unit increments
0.1 mA	100 µA	-	multiple unit increments
0.5 mA	500 µA	-	multiple unit increments
1 mA	1000 µA	-	multiple unit increments
2 mA	2000 µA	-	multiple unit increments
5 mA	5000 µA	-	multiple unit increments
10 mA	10000 µA	-	multiple unit increments
25 mA	25000 µA	-	multiple unit increments
50 mA	50000 µA	-	multiple unit increments
100 mA	100000 µA	-	multiple unit increments
250 mA	250000 µA	-	multiple unit increments
500 mA	500000 µA	-	multiple unit increments
1000 mA	1000000 µA	-	multiple unit increments

mA to µA Formula and Examples

Direct Formula µA = mA × 1000

Inverse Formula mA = µA × 0.001

Mental Math Shortcut

Multiply the value by roughly 1000 to calculate the equivalent amount in your head.

Common Milliampere to Microampere Calculations

5 mA = 5000 µA
10 mA = 10000 µA
50 mA = 50000 µA
100 mA = 100000 µA
500 mA = 500000 µA

Precision & Practical Use

For example, 10 mA = 10000 µA — roughly multiple unit increments.

Results are computed to up to 9 decimal places. Round to the precision of your measuring instrument — for most electric current applications, 2–3 significant figures are plenty.

How to Convert Milliampere to Microampere

How many microamperes are in one milliampere?

One Milliampere (mA) equals 1000 Microampere (µA). To convert milliamperes to microamperes, multiply the milliampere value by 1000.

How do I convert Milliampere to Microampere?

Multiply your milliampere value by 1000 to get the result in Microampere: µA = mA × 1000. For example, 5 mA = 5000 µA.

What is the formula for converting mA to µA?

The conversion formula is µA = mA × 1000. Use the calculator above for any value, and see the reference table below for common inputs from 0.001 to 1000.

Is there a quick mental estimate for mA to µA?