Milliampere-hours (mAh)	Ampere-hours (Ah)
1 mAh	0.001 Ah
2 mAh	0.002 Ah
5 mAh	0.005 Ah
10 mAh	0.01 Ah
25 mAh	0.025 Ah
50 mAh	0.05 Ah
100 mAh	0.1 Ah
250 mAh	0.25 Ah
500 mAh	0.5 Ah
1000 mAh	1 Ah

Convert Milliampere-hours to Ampere-hours

Convert milliampere-hours to ampere-hours (mAh to Ah) with our instant calculator. 1 mAh = 0.001 Ah. Includes exact formula and reference tables.

How to Convert Milliampere-hours to Ampere-hours (mAh to Ah)

1 Milliampere-hour (mAh) is equal to 0.001 Ampere-hours (Ah). Divide the milliampere-hour value by 1000

Quick Answer 1 mAh = 0.001 Ah

Formula Ah = mAh / 1000

Inverse Factor 1 Ah = 1000 mAh

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 Milliampere-hours (mAh): Milliampere-hour (mAh) is a unit in the Electric Current measurement category. It is widely used in phone, laptop & power bank battery capacity. Relative to the electric current base unit, 1 mAh equals 0.001 Amperes (A).

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).

Need to convert in the opposite direction? Visit our Convert Ampere-hours to Milliampere-hours (Ah to mAh) calculator (1 Ah = 1000 mAh).

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

Convert 5 Milliampere-hours to Ampere-hours: Applying the formula (Ah = mAh / 1000): starting with 5 mAh, divide the milliampere-hour value by 1000 to get 0.005 Ah.
Convert 10 Milliampere-hours to Ampere-hours: Applying the formula (Ah = mAh / 1000): starting with 10 mAh, divide the milliampere-hour value by 1000 to get 0.01 Ah.
Convert 50 Milliampere-hours to Ampere-hours: Applying the formula (Ah = mAh / 1000): starting with 50 mAh, divide the milliampere-hour value by 1000 to get 0.05 Ah.

Popular 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 milliampere-hours to ampere-hours.

How many ampere-hours are in 1 milliampere-hour?

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

How do you convert milliampere-hours to ampere-hours?

To convert milliampere-hours (mAh) to ampere-hours (Ah), use the formula: Ah = mAh / 1000. Divide the milliampere-hour value by 1000. For example, 10 mAh equals 0.01 Ah.

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

To convert in the reverse direction from ampere-hours (Ah) to milliampere-hours (mAh), use the inverse formula: mAh = Ah × 1000. Multiply the ampere-hour value by 1000 (1 Ah = 1000 mAh).

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

Both milliampere-hour and ampere-hour measure electric current. Milliampere-hour (mAh) is a unit in the Electric Current measurement category. It is widely used in phone, laptop & power bank battery capacity. Relative to the electric current base unit, 1 mAh equals 0.001 Amperes (A). 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).

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).