kWh To kBTU Calculator: Convert kWh To kBTU (+ Chart)

In HVAC (heating/cooling), we may have to convert kWh to kBTU. This is to say, we are converting kilowatt-hours (kWh) to kilo British Thermal Units (kBTU). Since this is not a conversion you can easily do in your head, we prepared an online kWh to kBTU calculator you can freely use (insert kWh, get kBTU right away).

On top of that, we also converted 0.001-1000 kWh into kBTU, and created a neat conversion chart (here you can just read of the kWh-kBTU equivalents). Let’s start with the calculator, followed by the explanation and the conversion chart:

Here is how this calculator works:

Say you want to convert 5.5 kWh to kBTU. You just insert ‘5.5’ in the kWh input field, hit ‘Calculate’, and you get the result in this form (screenshot):

You can see right away that 5.5 kWh is equal to 18.767 kBTU (that’s 18,767 BTUs). If you need this conversion in reverse – kBTU to kWh – you can check a similar kBTU to kWh calculator here.

Let’s look at both of these units and the relationship between them:

kWh To kBTU Formula

Both of these units in HVAC denote heating or cooling capacity. Here is what they stand for and definitions:

• kWh stands for kilowatt-hours. In general, we use it to denote electricity expenditure. In HVAC, however, we also use it to denote the capacity of air conditioners, furnaces, and so on (used in Europe and internationally). 1 kWh is equal to roughly 3412 BTU.
• kBTU stands for kilo British Thermal Units (used in the US, UK, Australia). 1 kBTU is thus equal to 1000 BTU.

Here is the precise relationship between these two HVAC units:

1 kWh = 3.41214163312794 kBTU

We usually say that 1 kWh is equal to about 3.412 kWh (of that 3 kWh is equal to very roughly about 10 kBTU). Here is the exact kWh to kBTU formula:

kBTU = kWh × 3.41214163312794

Namely, to convert kWh to kBTU, we need to multiply kWh by a factor of 3.41214163312794 (more decimal numbers = higher accuracy).

Quick Example: How many kBTU is 3.5 kWh? Let’s insert 3.5 kWh in the equation above like this:

kBTU (3.5 kWh) = 3.5 kWh × 3.41214163312794 = 11.942 kBTU

We see that 3.5 kWh in HVAC is equivalent to 11.942 kBTU (about 12 kBTU).

Inserting all these digits in a hand calculator is a bit tedious. That’s why the calculator above is so useful. On top of that, we created this 0.001-1000 kWh to kBTU chart you can use for quick conversions:

kWh To kBTU Conversion Chart

With this chart, as well as the calculator, you can now quickly convert any kWh to kBTU. If you need any assistance, you can use the comment section below, give us a few numbers, and we will help you out.