Battery Watt-Hours
Calculate Battery Watt-Hours instantly with the exact formula and a worked example.
Battery Watt-Hours
CapacityAh
Nominal voltageV
Allowed depth of discharge%
Wh
1,200Wh
In kWh
1.2kWh
Usable energy
960Wh
More about: Battery Watt-Hours
What it calculates
The “Battery Watt-Hours” calculator computes Wh in Wh from 3 parameters: capacity (Ah), nominal voltage (V), allowed depth of discharge (%).
A standard physics formula used in educational and engineering tasks.
Example calculation
With parameters Capacity = 100 Ah, Nominal voltage = 12 V, Allowed depth of discharge = 80 % the result is 1,200 Wh.
How to use
- Enter capacity, nominal voltage and allowed depth of discharge — each field above is adjustable with a slider.
- Wh (Wh) is calculated automatically as you type.
- Check the worked example below to see the formula applied to real numbers.
- Copy the result or bookmark this calculator.
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FAQ
How is Battery Watt-Hours calculated?
The Battery Watt-Hours calculator computes Wh (in Wh) from capacity, nominal voltage, allowed depth of discharge. Enter your values above and the exact formula is applied instantly; a worked example with real numbers is shown below.
Is the Battery Watt-Hours calculator free?
Yes. It is completely free, needs no signup, runs entirely in your browser, and sends no data to any server.
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