Kilocalorie per second to Kilojoule 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 kilocalories per second [kcal/s] to kilojoules per second [kJ/s] or kilojoules per second [kJ/s] to kilocalories per second [kcal/s]. Calculations are performed in both directions. The calculation result and the entered value are displayed with up to 20 decimal places for maximum accuracy.

1 kilocalorie per second [kcal/s] = 4.1868 kilojoules per second [kJ/s]1 kilojoule per second [kJ/s] ≈ 0.2388 kilocalories per second [kcal/s]

Convert kilocalories per second to kilojoules per second

There are two simple ways to convert kilocalories per second [kcal/s] to kilojoules per second [kJ/s]. In the first calculation method, the value in kilocalories per second [kcal/s] is divided by the rounded conversion factor of 0.2388. The second method multiplies the value in kilocalories per second [kcal/s] by 4.1868.

  • Kilojoules per second [kJ/s] ≈ kilocalories per second [kcal/s] ÷ 0.2388
  • Kilojoules per second [kJ/s] = kilocalories per second [kcal/s] * 4.1868

The calculation method with a rounded conversion value is more suitable for rough conversions from kilocalories per second [kcal/s] to kilojoules per second [kJ/s], as the calculation result may contain rounding errors. Therefore, the variant with the exact conversion factor is more suitable.


Convert kilojoules per second to kilocalories per second

Converting kilojoules per second [kJ/s] to kilocalories per second [kcal/s] is easy and can be done in two ways. The first method involves multiplication, in which the value in kilojoules per second [kJ/s] is multiplied by the rounded conversion factor of 0.2388. The second variant is a division. Here, the value in kilojoules per second [kJ/s] is divided by 4.1868.

  • Kilocalories per second [kcal/s] ≈ kilojoules per second [kJ/s] * 0.2388
  • Kilocalories per second [kcal/s] = kilojoules per second [kJ/s] ÷ 4.1868

The rounded conversion value can cause rounding errors, resulting in inaccurate calculation results. To ensure that the conversion from kilojoules per second [kJ/s] to kilocalories per second [kcal/s] produces the most accurate calculation result possible, the conversion should be performed using the exact conversion factor.

Converter

Decimal places

How it's calculated

Factor: 
≈ 4.187
Kilojoules per secondKilocalories per second*4.187
Kilocalories per second
Kilojoules per second4.187

To all available units

Kilocalories per second

Megawatts

Kilocalories per second

Metric horsepower

Kilocalories per second

Microwatts

Kilocalories per second

Milliwatts

Kilocalories per second

Nanowatts