# Watt-Seconds to Kilocalories Converter

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

## Result in Kilocalories:

1 Ws = 0.000239 kcal

Do you want to convert kilocalories to watt-seconds?

## How to Convert Watt-Seconds to Kilocalories

To convert a measurement in watt-seconds to a measurement in kilocalories, divide the energy by the following conversion ratio: 4,184 watt-seconds/kilocalorie.

Since one kilocalorie is equal to 4,184 watt-seconds, you can use this simple formula to convert:

kilocalories = watt-seconds ÷ 4,184

The energy in kilocalories is equal to the energy in watt-seconds divided by 4,184.

For example, here's how to convert 5,000 watt-seconds to kilocalories using the formula above.
kilocalories = (5,000 Ws ÷ 4,184) = 1.195029 kcal

Watt-seconds and kilocalories are both units used to measure energy. Keep reading to learn more about each unit of measure.

## What Is a Watt-Second?

The watt-second is a measure of electrical energy equal to one watt of power over a one second period. One watt-second is equal to 1/3,600 of a watt-hour or one joule.

Watt-seconds are usually abbreviated as Ws, although the formally adopted expression is W·s. The abbreviation W s is also sometimes used. For example, 1 watt-second can be written as 1 Ws, 1 W·s, or 1 W s.

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.[1]

## 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-Second to Kilocalorie Conversion Table

Table showing various watt-second measurements converted to kilocalories.
Watt-seconds Kilocalories
1 Ws 0.000239 kcal
2 Ws 0.000478 kcal
3 Ws 0.000717 kcal
4 Ws 0.000956 kcal
5 Ws 0.001195 kcal
6 Ws 0.001434 kcal
7 Ws 0.001673 kcal
8 Ws 0.001912 kcal
9 Ws 0.002151 kcal
10 Ws 0.00239 kcal
20 Ws 0.00478 kcal
30 Ws 0.00717 kcal
40 Ws 0.00956 kcal
50 Ws 0.01195 kcal
60 Ws 0.01434 kcal
70 Ws 0.01673 kcal
80 Ws 0.01912 kcal
90 Ws 0.021511 kcal
100 Ws 0.023901 kcal
200 Ws 0.047801 kcal
300 Ws 0.071702 kcal
400 Ws 0.095602 kcal
500 Ws 0.119503 kcal
600 Ws 0.143403 kcal
700 Ws 0.167304 kcal
800 Ws 0.191205 kcal
900 Ws 0.215105 kcal
1,000 Ws 0.239006 kcal
2,000 Ws 0.478011 kcal
3,000 Ws 0.717017 kcal
4,000 Ws 0.956023 kcal
5,000 Ws 1.195 kcal
6,000 Ws 1.434 kcal
7,000 Ws 1.673 kcal
8,000 Ws 1.912 kcal
9,000 Ws 2.1511 kcal
10,000 Ws 2.3901 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