Ah to kWh Calculator - Calculator Hub

Table of contents:

Ah to kWh Formula
How to convert amp-hours to kilowatt-hours?
Typical Ah to kWh Conversion Table

Ah to kWh Formula

The formula to convert an energy value from ampere-hours to kilowatt-hours is kWh = (Ah x V) / 1000.

\text{Energy in kWh} = \frac{\text{Energy in Ah} \times \text{Voltage}}{1,000}

{kWh} = \frac{{Ah} \times {V}}{1,000}

Where Ah is the energy value in amp-hours, V is the voltage of the energy source, and kWh is the equivalent energy value in kilowatt-hours.

How to convert amp-hours to kilowatt-hours?

To convert energy value from amp-hours to kilowatt-hours, follow the simple steps below:

Write down the energy value in amp-hours (Ah).
Multiply it by the value of the energy source voltage (V).
Divide the result by 1000.
The result from the equation is the value of an energy value in kilowatt-hours (kWh).

Example: Find the maximum energy that can be produced by a 12V battery

What is the maximum energy can a 12V battery rated at 100Ah generates in kWh? Assuming it can use 100% of its capacity.

To find the maximum generated energy by the battery in kilowatt-hours or kWh, use the following formula and follows by entering the given values.

$\text{Energy in kWh} = \frac{\text{Energy in Ah} \times \text{Voltage}}{1,000}$

$\text{Energy in kWh} = \frac{{100\ Ah} \times {12\ V}}{1,000}$

Therefore,

$\text{Energy in kWh} = \frac{1,200}{1,000}\ {kWh}$

$\text{Energy in kWh} = 1.2\ {kWh}$

So, the maximum energy generated by a 12V battery with a capacity rated at 100Ah is 1.2 kWh.

Typical Ah to kWh Conversion Table

Here is the conversion table from amp-hours (Ah) to kilowatt-hours (kWh) for typical voltage sources. Use the table for a quick reference and remember it for everyday use.

12V Battery

Amp-hours (Ah)	Voltage (V)	Kilowatt-hours (kWh)
1 Ah	12V	0.012 kWh
2 Ah	12V	0.024 kWh
3 Ah	12V	0.036 kWh
4 Ah	12V	0.048 kWh
5 Ah	12V	0.060 kWh
6 Ah	12V	0.072 kWh
7 Ah	12V	0.084 kWh
8 Ah	12V	0.096 kWh
9 Ah	12V	0.108 kWh
10 Ah	12V	0.120 kWh
20 Ah	12V	0.240 kWh
30 Ah	12V	0.360 kWh
40 Ah	12V	0.480 kWh
50 Ah	12V	0.600 kWh
100 Ah	12V	1.200 kWh

24V Battery

Amp-hours (Ah)	Voltage (V)	Kilowatt-hours (kWh)
1 Ah	24V	0.024 kWh
2 Ah	24V	0.048 kWh
3 Ah	24V	0.072 kWh
4 Ah	24V	0.096 kWh
5 Ah	24V	0.120 kWh
6 Ah	24V	0.144 kWh
7 Ah	24V	0.168 kWh
8 Ah	24V	0.192 kWh
9 Ah	24V	0.216 kWh
10 Ah	24V	0.240 kWh
20 Ah	24V	0.480 kWh
30 Ah	24V	0.720 kWh
40 Ah	24V	0.960 kWh
50 Ah	24V	1.200 kWh
100 Ah	24V	2.400 kWh

48V Battery

Amp-hours (Ah)	Voltage (V)	Kilowatt-hours (kWh)
1 Ah	48V	0.048 kWh
2 Ah	48V	0.096 kWh
3 Ah	48V	0.144 kWh
4 Ah	48V	0.192 kWh
5 Ah	48V	0.240 kWh
6 Ah	48V	0.288 kWh
7 Ah	48V	0.336 kWh
8 Ah	48V	0.384 kWh
9 Ah	48V	0.432 kWh
10 Ah	48V	0.480 kWh
20 Ah	48V	0.960 kWh
30 Ah	48V	1.440 kWh
40 Ah	48V	1.920 kWh
50 Ah	48V	2.400 kWh
100 Ah	48V	4.800 kWh