Ampere-hours (Ah)	Milliamperes (mA)
1 Ah	1000 mA
2 Ah	2000 mA
5 Ah	5000 mA
10 Ah	10000 mA
25 Ah	25000 mA
50 Ah	50000 mA
100 Ah	100000 mA
250 Ah	250000 mA
500 Ah	500000 mA
1000 Ah	1000000 mA

Convert Ampere-hours to Milliamperes

Convert ampere-hours to milliamperes (Ah to mA) with our instant calculator. 1 Ah = 1000 mA. Includes exact formula and reference tables.

How to Convert Ampere-hours to Milliamperes (Ah to mA)

1 Ampere-hour (Ah) is equal to 1000 Milliamperes (mA). Multiply the ampere-hour value by 1000

Quick Answer 1 Ah = 1000 mA

Formula mA = Ah × 1000

Inverse Factor 1 mA = 0.001 Ah

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 Ampere-hours (Ah): Ampere-hour (Ah) is a unit in the Electric Current measurement category. It is widely used in battery capacity over 1 hour (3,600 c). Relative to the electric current base unit, 1 Ah equals 1 Amperes (A).

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).

Need to convert in the opposite direction? Visit our Convert Milliamperes to Ampere-hours (mA to Ah) calculator (1 mA = 0.001 Ah).

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

Convert 5 Ampere-hours to Milliamperes: Applying the formula (mA = Ah × 1000): starting with 5 Ah, multiply the ampere-hour value by 1000 to get 5000 mA.
Convert 10 Ampere-hours to Milliamperes: Applying the formula (mA = Ah × 1000): starting with 10 Ah, multiply the ampere-hour value by 1000 to get 10000 mA.
Convert 50 Ampere-hours to Milliamperes: Applying the formula (mA = Ah × 1000): starting with 50 Ah, multiply the ampere-hour value by 1000 to get 50000 mA.

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 ampere-hours to milliamperes.

How many milliamperes are in 1 ampere-hour?

There are 1000 milliamperes (mA) in 1 ampere-hour (Ah). Conversely, 1 milliampere equals 0.001 ampere-hours.

How do you convert ampere-hours to milliamperes?

To convert ampere-hours (Ah) to milliamperes (mA), use the formula: mA = Ah × 1000. Multiply the ampere-hour value by 1000. For example, 10 Ah equals 10000 mA.

How do I convert back from milliamperes to ampere-hours?

To convert in the reverse direction from milliamperes (mA) to ampere-hours (Ah), use the inverse formula: Ah = mA / 1000. Divide the milliampere value by 1000 (1 mA = 0.001 Ah).

What is the difference between ampere-hour (Ah) and milliampere (mA)?

Both ampere-hour and milliampere measure electric current. Ampere-hour (Ah) is a unit in the Electric Current measurement category. It is widely used in battery capacity over 1 hour (3,600 c). Relative to the electric current base unit, 1 Ah equals 1 Amperes (A). 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).

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).