Milliamperes to Amperes Converter
Quick answer: To convert milliamperes to amperes, multiply by 0.001. For example, 10 mA is 0.01 A. One milliampere equals 0.001 A.
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Use the Milliamperes to Amperes Converter
Milliamperes to Amperes formula and what each symbol means
A = mA × 0.001
| Symbol | Meaning |
|---|---|
| mA | Milliampere |
| A | Ampere |
Milliamperes to Amperes examples
1 mA
1 mA × 0.001 = 0.001 A.
10 mA
10 mA × 0.001 = 0.01 A.
100 mA
100 mA × 0.001 = 0.1 A.
Milliamperes compared with Amperes
One A is 1,000 times as large as one mA, so your number gets smaller when you convert milliamperes to amperes and bigger when you convert back. If the answer is not smaller than what you typed, you multiplied instead of dividing.
About milliamperes and amperes
Milliampere (mA): Milliampere, 0.001 A. Ampere (A): The ampere, the SI base unit of electric current.
How to calculate Milliamperes to Amperes step by step
- Enter the value in mA (the starting unit).
- Multiply by 0.001, because 1 mA = 0.001 A.
- The product is the value in A. To go back, divide by 0.001 or multiply by 1,000.
Popular electric current conversions
How to read your Milliamperes to Amperes result
The ampere is the SI unit of electric current and equals one coulomb per second.
| MILLIAMPERES | AMPERES |
|---|---|
| 1 | 0.001 |
| 2 | 0.002 |
| 5 | 0.005 |
| 10 | 0.01 |
| 20 | 0.02 |
| 50 | 0.05 |
| 100 | 0.1 |
| 1,000 | 1 |
Amperes to Milliamperes: quick table
| AMPERES | MILLIAMPERES |
|---|---|
| 1 | 1,000 |
| 5 | 5,000 |
| 10 | 10,000 |
| 25 | 25,000 |
| 50 | 50,000 |
| 100 | 100,000 |
| 250 | 250,000 |
| 500 | 500,000 |
Common mistakes when calculating Milliamperes to Amperes
- Forgetting that kA is 1,000 A.
- Dividing when you should multiply: from mA to A multiply by 0.001; from A to mA divide by 0.001.
Milliamperes to Amperes FAQ
How many A are in 1 mA?
1 mA equals 0.001 A.
How many mA are in 1 A?
1 A equals 1,000 mA.
Is 1 mA = 0.001 A an exact conversion?
The factor is shown rounded to 7 significant figures (0.001). The calculator above uses more digits.
What is a milliampere (mA)?
Milliampere, 0.001 A.
How can I estimate milliamperes to amperes in my head?
One A is 1,000 times as large as one mA, so your number gets smaller when you convert milliamperes to amperes and bigger when you convert back. If the answer is not smaller than what you typed, you multiplied instead of dividing.
What is 80 mA in amperes?
80 mA = 0.08 A (since 80 × 0.001).
What is 500 mA in amperes?
500 mA = 0.5 A (since 500 × 0.001).
What is 15 mA in amperes?
15 mA = 0.015 A (since 15 × 0.001).
How many decimals should I keep when converting mA to A?
Match the precision of your original measurement. For example, 0.01 A rounds to 0.01 A at 3 significant figures; keep more digits only for engineering or scientific work.
More in Electric Current converters
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- Kiloamperes to Milliamperes Converter
- Kiloamperes to Microamperes Converter
- Kiloamperes to Amperes Converter
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Method, review and disclaimer
Edited by: Hemant Kumar and Anjita Rai, founders of ToolsVault (SEO and content professional, not a licensed adviser). Method: this tool runs in your browser using the formula shown on this page; the numbers you enter are not sent to our servers. Sources: NIST SP 811, Appendix B.8: conversion factors, BIPM: the International System of Units (SI)