Milliamperes (mA)	Amperes (A)
1 mA	0.001 A
2 mA	0.002 A
5 mA	0.005 A
10 mA	0.01 A
25 mA	0.025 A
50 mA	0.05 A
100 mA	0.1 A
250 mA	0.25 A
500 mA	0.5 A
1000 mA	1 A

Convert Milliamperes to Amperes

Convert milliamperes to amperes (mA to A) with our instant calculator. 1 mA = 0.001 A. Includes exact formula and reference tables.

How to Convert Milliamperes to Amperes (mA to A)

1 Milliampere (mA) is equal to 0.001 Amperes (A). Divide the milliampere value by 1000

Quick Answer 1 mA = 0.001 A

Formula A = mA / 1000

Inverse Factor 1 A = 1000 mA

Unit Definitions & Metrology Context

The standard SI base unit of electric current is the ampere (A), defined by taking the fixed numerical value of the elementary charge e to be 1.602176634 × 10⁻¹⁹ coulombs per second.

About Milliamperes (mA): Milliampere (mA) is a unit in the Electric Current measurement category. It is widely used in electronics & microcontroller circuits. Relative to the electric current base unit, 1 mA equals 0.001 Amperes (A).

About Amperes (A): Ampere (A) is a unit in the Electric Current measurement category. It is widely used in base si unit of electric current (1 c/s). The ampere (A) serves as the primary reference base unit for the electric current domain.

Need to convert in the opposite direction? Visit our Convert Amperes to Milliamperes (A to mA) calculator (1 A = 1000 mA).

Step-by-Step Worked Examples (mA to A)

Convert 5 Milliamperes to Amperes: Applying the formula (A = mA / 1000): starting with 5 mA, divide the milliampere value by 1000 to get 0.005 A.
Convert 10 Milliamperes to Amperes: Applying the formula (A = mA / 1000): starting with 10 mA, divide the milliampere value by 1000 to get 0.01 A.
Convert 50 Milliamperes to Amperes: Applying the formula (A = mA / 1000): starting with 50 mA, divide the milliampere value by 1000 to get 0.05 A.

Popular Electric Current Conversions

Ampere ⇄ Milliampere

1 ampere (A) equals exactly 1,000 milliamperes (mA).

Milliampere ⇄ Ampere

Divide milliamperes by 1,000 to convert to amperes (500 mA = 0.5 A).

Milliampere-hour ⇄ Ampere-hour

Divide milliampere-hours by 1,000 to convert battery capacity to ampere-hours (5,000 mAh = 5 Ah).

Ampere-hour ⇄ Milliampere-hour

Multiply ampere-hours by 1,000 to get battery capacity in milliampere-hours (mAh).

Microampere ⇄ Milliampere

1 milliampere contains 1,000 microamperes (µA).

Frequently Asked Questions

Verified answers and formulas for converting milliamperes to amperes.

How many amperes are in 1 milliampere?

There are 0.001 amperes (A) in 1 milliampere (mA). Conversely, 1 ampere equals 1000 milliamperes.

How do you convert milliamperes to amperes?

To convert milliamperes (mA) to amperes (A), use the formula: A = mA / 1000. Divide the milliampere value by 1000. For example, 10 mA equals 0.01 A.

How do I convert back from amperes to milliamperes?

To convert in the reverse direction from amperes (A) to milliamperes (mA), use the inverse formula: mA = A × 1000. Multiply the ampere value by 1000 (1 A = 1000 mA).

What is the difference between milliampere (mA) and ampere (A)?

Both milliampere and ampere measure electric current. Milliampere (mA) is a unit in the Electric Current measurement category. It is widely used in electronics & microcontroller circuits. Relative to the electric current base unit, 1 mA equals 0.001 Amperes (A). Ampere (A) is a unit in the Electric Current measurement category. It is widely used in base si unit of electric current (1 c/s). The ampere (A) serves as the primary reference base unit for the electric current domain.

How do you convert mAh (milliampere-hours) to Ah (ampere-hours)?

To convert mAh to Ah, divide the mAh rating by 1,000. For example, a 5,000 mAh smartphone battery or power bank has a capacity of 5 Ah (5,000 ÷ 1,000 = 5 Ah).