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#### mAh to Wh calculation - Online Electrical Calculators

milliamp-hour (mAh) to watt-hours (wh) Calculator.

Enter the Battery Capacity (Q) in milliamp-hour (mAh) and Voltage in volts (V) and press the Calculator button to get the Energy (E) in watt-hour (wh):

mAh To Wh Calculator

Note, For higher values like 5×103, 10×10-6, 1.6 x1012, enter the value like this for scientific notation as 5e3, 10e-6, 1.6e12, etc.

### DC  Line mAh to wh Calculation:

The Energy (E) in watt-hours (Wh) is equal to the electric charge (Q) in milliamp-hours (mAh) times the voltage (V) in volts (V) divided by 1000:

For example,  let’s convert the charge used by an average C battery with a charge of 10,000 mAh at 3V to Wh.

E(wh) = Q(mAh) x V(V) ÷ 1000
E(wh) = 10000 x 3 ÷ 1000
E(wh) = 30 wh

Where:

• E = Energy in watt-hours (wh)
• Q = Battery Capacity in milliamp-hours (mAh)
• V = Voltage in volts
Recommended Electrical Resources:

### How to use This Calculator?

To use the above “milliamp-hour (mAh) to Watt-hours (wh) conversion Calculator” follow the below steps:

01. Enter milliamp-hours: Input the Battery Capacity in milliamp-hours value in the specific input box. You can enter the value in mAh by choosing the appropriate option from the dropdown.

02. Enter Supply Voltage: Input the supply voltage or motor voltage value in the specified input box. You can enter the value in Volts or Kilovolts by choosing the appropriate option from the dropdown.

03. Reset: If you want to “reset” the calculator to perform another conversion, you can click the “Reset” button, and all input fields will be cleared.

04. Calculate: Click the “Calculate” button to obtain the results. The calculated results will be displayed in the “Results:” section.

05. Swap: If you want to “Swap” the calculated to Exchange conversion, you can click the “Swap” button, and Calculate will be Exchange.

06. Result: The calculated “result” will be displayed in the respective “Result In watt-hours (wh)” output field.

### mAh to Wh Conversion table:

Milliamp Hours (mAh) Voltage (V) Watt Hours (Wh)
1mAh 12V 0.012Wh
1000mAh 12V 12Wh
1200mAh 12V 14.4Wh
2000mAh 12V 24Wh
2500mAh 12V 30Wh
3000mAh 12V 36Wh
4000mAh 12V 48Wh
4500mAh 12V 54Wh
5000mAh 12V 60Wh
7500mAh 12V 90Wh
8800mAh 12V 105.6Wh
10000mAh 12V 120Wh
15000mAh 12V 180Wh
20000mAh 12V 240Wh
25000mAh 12V 300Wh
30000mAh 12V 360Wh
50000mAh 12V 600Wh
55000 12V 660Wh
60000mAh 12V 720Wh
70000mAh 12V 840Wh
using 12v battery as power supply

What is watt-hour in battery?

A measure of the capacity of the battery is in Watt-hours (Wh). Wh is calculated by multiplying the number of Amps with the battery voltage.

What are Watt Hours (Wh)?

A Watt Hours (Wh) represents a unit of electrical energy that describes the total amount of Real power consumed over a specific duration. Essentially, it’s a measure of how much energy a device uses when it runs for an hour.

Why Convert Watt Hours to Milliampere Hours?

A watt hours (Wh) and milliampere-hours (mAh) can give a comprehensive view of a battery’s capacity. Converting Wh to mAh or vice versa is often necessary for comparison, especially when purchasing or replacing batteries.

What is Watt-hours?

Watt-hours (Wh) is a unit of energy measurement. It represents the amount of energy consumed or produced over a period of 2 hours at a constant rate of one watt. This unit is commonly used to measure the energy consumption of electrical devices or systems. It is calculated by multiplying the power (p) in watts (w) by the time (t) in hours during which the power is consumed or produced.

What is a 100Ah battery?

The Ampere-Hour Capacity is the amount of electricity that a battery will deliver during 20 hours before the voltage falls to 10.50V. For example, a 10Ah battery will deliver a current of 5A for 20 hours. Recommended Charge Rate (Amps).