Kilojoules to Calories Converter

Convert kilojoules (kJ) to calories (cal) instantly. Energy conversions link food labels in kJ and kcal, SP Group bills in kWh and air-conditioner capacity in BTU.

Result

Calories
239.0057 cal

How to use the kilojoules to calories converter

  1. Enter the kilojoules (kJ).
  2. The results update as you type, or press Calculate.
  3. Read the calories first, then the supporting figures below it.

Formula

Calories = kilojoules × 239.0057361377

Worked example

For example, with these inputs:

the calculator returns:

Kilojoules to Calories table

KilojoulesCalories
1 kJ239.0057 cal
2 kJ478.0115 cal
5 kJ1,195.03 cal
10 kJ2,390.06 cal
20 kJ4,780.11 cal
25 kJ5,975.14 cal
50 kJ11,950.29 cal
100 kJ23,900.57 cal
250 kJ59,751.43 cal
500 kJ119,502.87 cal
1,000 kJ239,005.74 cal

About this conversion

Energy conversions link food labels in kJ and kcal, SP Group bills in kWh and air-conditioner capacity in BTU.

Many conversion factors are exact by definition. The inch has been defined as exactly 2.54 centimetres since 1959, and the pound as exactly 0.45359237 kilograms, so conversions involving them can be as precise as you need.

Writing the units next to every number while you work is the simplest way to avoid mistakes. If the units do not cancel to leave the one you want, the calculation is set up wrongly.

Frequently asked questions

How many calories are in one kilojoule?

1 kJ = 239.0057 cal.

How do I convert kJ to cal?

Calories = kilojoules × 239.0057361377.

Guides for this calculator

Related calculators