Watt to Kilocalorie per second Converter (and vice versa)
Created by: tinycalcs.com/en
Number of supported units: 2
Last update: 2026
This converter allows you to convert watts [W] to kilocalories per second [kcal/s] or kilocalories per second [kcal/s] to watts [W]. Calculations are performed in both directions. The calculation result and the entered value are displayed with up to 20 decimal places for maximum accuracy.
Convert watts to kilocalories per second
There are two simple ways to convert watts [W] to kilocalories per second [kcal/s]. In the first calculation method, the value in watts [W] is divided by 4,186.8. The second method multiplies the value in watts [W] by the rounded conversion factor of 2.388 * 10-4.
- Kilocalories per second [kcal/s] = watts [W] ÷ 4,186.8
- Kilocalories per second [kcal/s] ≈ watts [W] * 2.388 * 10-4
The calculation method with a rounded conversion value is more suitable for rough conversions from watts [W] to kilocalories per second [kcal/s], as the calculation result may contain rounding errors. Therefore, the variant with the exact conversion factor is more suitable.
Convert kilocalories per second to watts
Converting kilocalories per second [kcal/s] to watts [W] is easy and can be done in two ways. The first method involves multiplication, whereby the value in kilocalories per second [kcal/s] is multiplied by 4,186.8. The second variant is a division. Here, the value in kilocalories per second [kcal/s] is divided by the rounded conversion factor of 2.388 * 10-4.
- Watts [W] = kilocalories per second [kcal/s] * 4,186.8
- Watts [W] ≈ kilocalories per second [kcal/s] ÷ (2.388 * 10-4)
The rounded conversion value can cause rounding errors, resulting in inaccurate calculation results. To ensure that the conversion from kilocalories per second [kcal/s] to watts [W] produces the most accurate calculation result possible, the conversion should be performed using the exact conversion factor.
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Watts
Kilojoules per hour
Watts
Kilojoules per minute
Watts
Kilojoules per second
Watts
Kilowatts
Watts
Mechanical horsepower
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