# Watt-Hours to Kilocalories Converter

Enter the energy in watt-hours below to get the value converted to kilocalories.

Results in Kilocalories: 1 Wh = 0.860421 kcal

Do you want to convert kilocalories to watt-hours?

## How to Convert Watt-Hours to Kilocalories

To convert a measurement in watt-hours to a measurement in kilocalories, multiply the energy by the following conversion ratio: 0.860421 kilocalories/watt-hour.

Since one watt-hour is equal to 0.860421 kilocalories, you can use this simple formula to convert:

kilocalories = watt-hours × 0.860421

The energy in kilocalories is equal to the energy in watt-hours multiplied by 0.860421.

For example, here's how to convert 5 watt-hours to kilocalories using the formula above.
kilocalories = (5 Wh × 0.860421) = 4.302103 kcal

### How Many Kilocalories Are in a Watt-Hour?

There are 0.860421 kilocalories in a watt-hour, which is why we use this value in the formula above.

1 Wh = 0.860421 kcal

## What is a Watt-Hour?

The watt-hour is a measure of electrical energy equal to one watt of power over a one hour period.

Watt-hours are usually abbreviated as Wh, although the formally adopted expression is W·h. The abbreviation W h is also sometimes used. For example, 1 watt-hour can be written as 1 Wh, 1 W·h, or 1 W h.

In formal expressions, the centered dot (·) or space is used to separate units used to indicate multiplication in an expression and to avoid conflicting prefixes being misinterpreted as a unit symbol.

## What is a Kilocalorie?

One kilocalorie, is equal to the heat needed to raise the temperature of one kilogram of water from 14.5 to 15.5 degrees Celsius.

Kilocalories can be abbreviated as kcal; for example, 1 kilocalorie can be written as 1 kcal.

When being used to measure nutrition or metabolic processes, the large calorie is used, which is equal to one kilocalorie.

## Watt-Hour to Kilocalorie Conversion Table

Table showing various watt-hour measurements converted to kilocalories.
Watt-hours Kilocalories
1 Wh 0.860421 kcal
2 Wh 1.7208 kcal
3 Wh 2.5813 kcal
4 Wh 3.4417 kcal
5 Wh 4.3021 kcal
6 Wh 5.1625 kcal
7 Wh 6.0229 kcal
8 Wh 6.8834 kcal
9 Wh 7.7438 kcal
10 Wh 8.6042 kcal
11 Wh 9.4646 kcal
12 Wh 10.33 kcal
13 Wh 11.19 kcal
14 Wh 12.05 kcal
15 Wh 12.91 kcal
16 Wh 13.77 kcal
17 Wh 14.63 kcal
18 Wh 15.49 kcal
19 Wh 16.35 kcal
20 Wh 17.21 kcal
21 Wh 18.07 kcal
22 Wh 18.93 kcal
23 Wh 19.79 kcal
24 Wh 20.65 kcal
25 Wh 21.51 kcal
26 Wh 22.37 kcal
27 Wh 23.23 kcal
28 Wh 24.09 kcal
29 Wh 24.95 kcal
30 Wh 25.81 kcal
31 Wh 26.67 kcal
32 Wh 27.53 kcal
33 Wh 28.39 kcal
34 Wh 29.25 kcal
35 Wh 30.11 kcal
36 Wh 30.98 kcal
37 Wh 31.84 kcal
38 Wh 32.7 kcal
39 Wh 33.56 kcal
40 Wh 34.42 kcal

## References

1. Bureau International des Poids et Mesures, The International System of Units (SI), 9th edition, 2019, https://www.bipm.org/documents/20126/41483022/SI-Brochure-9-EN.pdf