Calorie (IT) to Kilojoule Converter

Energy Converter

27 units available

Decimals:

From

To

0.004187

1 cal (IT) = 0.004187 kJ

Formula:

kJ = cal (IT) × 0.0041868

With your value: 1 cal (IT) = 0.0041868 kJ

How big is that?

Everyday references on a logarithmic scale, all expressed in calorie (it) so you can sanity-check the result.

Heartbeat (1/4.2 your value)0.239 cal (IT)

Your value1.00 cal (IT)

AA battery charge (2.4e+3× your value)2.39e+3 cal (IT)

Slice of bread (6.7e+4× your value)6.69e+4 cal (IT)

Daily food intake (2.0e+6× your value)2.01e+6 cal (IT)

Litre of petrol (8.2e+6× your value)8.17e+6 cal (IT)

Other Calorie (IT) to Kilojoule conversions

2 cal (IT) to kJ 3 cal (IT) to kJ 4 cal (IT) to kJ 5 cal (IT) to kJ 6 cal (IT) to kJ 7 cal (IT) to kJ 8 cal (IT) to kJ

Calorie (IT) to Kilojoule Conversion Table

Calorie (IT) (cal (IT))	Kilojoule (kJ)
0.5	0.002093
1	0.004187
2	0.008374
5	0.020934
10	0.041868
15	0.062802
20	0.083736
25	0.10467
50	0.20934
100	0.41868
250	1.0467
500	2.0934
1000	4.1868

Kilojoule to Calorie (IT) Conversion Table

Kilojoule (kJ)	Calorie (IT) (cal (IT))
0.5	119.422948
1	238.845897
2	477.691793
5	1,194.229483
10	2,388.458966
15	3,582.688449
20	4,776.917933
25	5,971.147416
50	11,942.294831
100	23,884.589663
250	59,711.474157
500	119,422.948314
1000	238,845.896627

Where these values come from

Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.

Calorie (IT) (cal (IT))

Energy

Exact conversion

Derived from the joule (1 J = 1 kg·m²/s²). Thermochemical and IT calories, BTU and kWh are exact defined multiples.

Source: NIST Special Publication 811, Guide for the Use of the International System of Units

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

Kilojoule (kJ)

Energy

Exact conversion

Derived from the joule (1 J = 1 kg·m²/s²). Thermochemical and IT calories, BTU and kWh are exact defined multiples.

Source: NIST Special Publication 811, Guide for the Use of the International System of Units

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

How to Convert Calorie (IT) to Kilojoule

To convert from Calorie (IT) (cal (IT)) to Kilojoule (kJ), multiply the value by 0.0041868.

Formula: kJ = cal (IT) × 0.0041868

Reverse: cal (IT) = kJ × 238.8458966275

Step-by-Step Example

Start with your value in Calorie (IT). For example: 5 cal (IT)
Multiply by the conversion factor: 5 x 0.0041868
The result is: 0.020934 kJ

About Calorie (IT)

The calorie (it) (cal (IT)) is a unit of energy and work. One calorie (it) equals 4.1868 joules. UnitConvertLab converts it against every other energy unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: energy calculations, engineering and science, education.

About Kilojoule

The kilojoule (kJ) is a unit of energy and work. One kilojoule equals 1000 joules. UnitConvertLab converts it against every other energy unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: energy calculations, engineering and science, education.

Frequently Asked Questions

How many Kilojoule are in 1 Calorie (IT)?

There are exactly 0.0041868 Kilojoule in 1 Calorie (IT). This means the conversion factor from Calorie (IT) to Kilojoule is 0.0041868.

What is the formula to convert Calorie (IT) to Kilojoule?

The formula to convert Calorie (IT) to Kilojoule is: kJ = cal (IT) × 0.0041868. For example, to convert 10 Calorie (IT) to Kilojoule, you would multiply 10 by 0.0041868.

What is a Calorie (IT)?