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Ampere-hours (Ah) and milliampere-hours (mAh) are units used to measure the capacity of a battery or the amount of electric charge it can store and deliver. Ampere-hours are a larger unit, while milliampere-hours are a smaller unit commonly used for practical purposes.
Ampere-hour (Ah)
It represents the amount of charge a battery can deliver or store when a current of one ampere flows for one hour. It’s a unit of electric charge capacity.
Milliampere-hour (mAh)
This is a subunit of the ampere-hour, where “milli” denotes one-thousandth. It’s often used because batteries typically deliver currents much smaller than an ampere. 1 Ah is equal to 1000 mAh. It’s a common unit for specifying the capacity of smaller batteries, like those in smartphones or portable devices.
How to convert ampere-hours to milliampere-hours
1mAh = 0.001Ah
or
1Ah = 1000mAh
Ampere-hours to milliampere-hours formula
Q(mAh) = Q(Ah) × 1000
Example – Convert 3 ampere-hours to milliampere-hours:
Ans. Q(mAh) = 3Ah × 1000 = 3000mAh
Also Read: Ah to coulombs conversion
Ah to mAh conversion table
| Ampere-hours (Ah) | Milliampere-hours (mAh) |
| 0 Ah | 0 mAh |
| 0.001 Ah | 1 mAh |
| 0.01 Ah | 10 mAh |
| 0.1 Ah | 100 mAh |
| 1 Ah | 1000 mAh |
| 10 Ah | 10000 mAh |
| 100 Ah | 100000 mAh |
| 1000 Ah | 1000000 mAh |
FAQs on Ah to mAh conversion
Is 1000mAh equal to 1Ah?
No, 1000mAh (milliampere-hours) is equal to 1Ah (ampere-hour). The 'm' in mAh stands for milli, which is one-thousandth of a unit. Therefore, 1000mAh is equivalent to 1Ah.
What is 1mAh equal to?
1mAh (milliampere-hour) is equal to 0.001Ah (ampere-hour), as milli is a thousandth of a unit.
How many amps is 10000mAh?
10000mAh is equal to 10A (amperes), as 1Ah is equivalent to 1A.
What is 1 amp-hour?
1 amp-hour (1Ah) is a unit of electrical charge. It represents the amount of current (in amperes) that flows through a circuit for one hour.
What is a 1Ah battery?
A 1Ah battery refers to a battery's capacity to deliver a current of 1 ampere for 1 hour. It's a common unit for measuring the energy storage capacity of batteries.
Is 100mA equal to 1 amp?
No, 100mA (milliamperes) is equal to 0.1A (amperes), or 1/10th of an ampere.
How many kilowatts (kW) is a 200Ah battery?
To convert amp-hours (Ah) to kilowatts (kW), you would need the voltage of the battery. The formula is kW = Ah * V / 1000, where V is the voltage in volts. Without the voltage, the conversion cannot be determined.
