How many milliamperes are in one ampere?

There are 1,000 milliamperes in 1 ampere.

How do you convert milliamperes to amperes?

Multiply the number of milliamperes by 0.001 — or use the formula A = mA ÷ 1,000.

What is 6 milliamperes in amperes?

6 milliamperes is 0.006 amperes. 6 ÷ 1,000 = 0.006 amperes.

Is the milliamperes to amperes conversion exact?

Yes. The relationship is fixed by definition, so 0.001 is an exact conversion factor — only the displayed result is rounded.

Milliamperes to Amperes Converter

Convert milliamperes to amperes instantly with this free milliamperes to amperes converter. Enter any value to get an accurate electric current conversion, plus the formula, the conversion factor and a full reference table.

What is 1 milliampere in amperes?

1 milliampere is equal to exactly 0.001 amperes.

1 ÷ 1,000 = 0.001 amperes

Amount

Result0.001

1 milliampere = 0.001 amperes

Milliamperes to Amperes formula

A = mA ÷ 1,000

The milliamperes to amperes conversion factor is 0.001, which is exact by definition. 1 milliampere = 0.001 amperes, and 1 ampere = 1,000 milliamperes.

Worked examples

2 milliamperes = 0.002 amperes — 2 ÷ 1,000 = 0.002 amperes
6 milliamperes = 0.006 amperes — 6 ÷ 1,000 = 0.006 amperes
10 milliamperes = 0.01 amperes — 10 ÷ 1,000 = 0.01 amperes

Milliamperes to Amperes conversion table

Every value below is calculated with the exact conversion factor and rounded for display.

milliamperes to amperes conversion table
Milliamperes (mA)	Amperes (A)
1 mA	0.001 A
2 mA	0.002 A
3 mA	0.003 A
4 mA	0.004 A
5 mA	0.005 A
6 mA	0.006 A
7 mA	0.007 A
8 mA	0.008 A
9 mA	0.009 A
10 mA	0.01 A
12 mA	0.012 A
15 mA	0.015 A
20 mA	0.02 A
25 mA	0.025 A
30 mA	0.03 A
50 mA	0.05 A
75 mA	0.075 A
100 mA	0.1 A
500 mA	0.5 A
1,000 mA	1 A

When you need to convert milliamperes to amperes

Comparing specifications written for a different market.
Checking a figure quoted in an unfamiliar unit before acting on it.
Converting values consistently across a spreadsheet, report or shopping list.

Common mistakes to avoid

Dividing when you should multiply. Because 1 milliampere = 0.001 amperes, the answer should be smaller than the number you started with.
Rounding too early. Convert first at full precision, then round the final answer to the precision the task actually needs.

How precise does the answer need to be?

Round only at the end, and only to the precision your task actually needs. The converter above keeps full double precision internally and rounds for display.

How these units are defined

Milliampere (mA): One thousandth of an ampere. This unit's relationship to the SI base unit is exact by definition, so no rounding enters the conversion factor.
Ampere (A): The SI base unit of electric current. This unit's relationship to the SI base unit is exact by definition, so no rounding enters the conversion factor.

Amperes to Milliamperes

Frequently asked questions

What is 1 milliampere in amperes?: 1 milliampere is equal to 0.001 amperes.
How many milliamperes are in one ampere?: There are 1,000 milliamperes in 1 ampere.
How do you convert milliamperes to amperes?: Multiply the number of milliamperes by 0.001 — or use the formula A = mA ÷ 1,000.
What is 6 milliamperes in amperes?: 6 milliamperes is 0.006 amperes. 6 ÷ 1,000 = 0.006 amperes.
Is the milliamperes to amperes conversion exact?: Yes. The relationship is fixed by definition, so 0.001 is an exact conversion factor — only the displayed result is rounded.