kWh To Ah Conversion (Calculator: Input kWh And V, Get Ah or mAh)

How do I convert kilowatt-hours to amp-hours?

In many cases, we need to convert kWh to Ah. With smaller 12V batteries, we also need to convert kWh to mAh.

We will look into how does kWh to amp-hours (Ah) conversion. You will also find a kWh to Ah calculator that dynamically calculated kWh from Ah and a calculated table of kWh to Ah and kWh to mAh. Let’s start with an example to illustrate.

Example: How to convert 13.5 kWh to Ah? First, we need to specify the voltage. Let’s say we have a 12V battery. We can calculate Ah from kWh using the basic kilowatt-hour equation:

kWh = Ah × V × 1,000

We express amp-hours (Ah) and insert our numbers:

Ah = kWh ÷ V × 1,000

Ah = 13.5kWh ÷ 12V × 1,000 = 1,125 Ah

That means that 13.5 kWh is equal to 1,125 Ah or 1,125,000 mAh on a 12V circuit.

Here is the kWh to Ah calculator that makes this calculation automatically:

kWh To Ah Calculator

Just insert kWh and voltage (V), and you will get the calculated Ah. You can also play around with numbers a bit and the calculator will dynamically calculate the ampere-hours:

Insert kWh:

Voltage (in Volts):

0.00 Ah

Calculated Ah (Amp-hours)

 

For example, it is useful to know this basic conversion:

1 kWh to Ah in a 12V battery is equal to 83.33 Ah.

On the other hand, if you need an Ah to kWh conversion, you can find a similar Ah to kWh conversion calculator here.

Here is the full calculated table of kWh to Ah conversions for the 12V circuit:

kWh To Ah And kWh to mAh Chart (At 12V; For Batteries)

If you have any questions about how to convert these two electrical units, you can pose a question in the comments and we’ll help you out.