Calorie (IT) to Watt-Hour Converter

Energy Converter

27 units available

Decimals:

From

To

0.001163

1 cal (IT) = 0.001163 Wh

Formula:

Wh = cal (IT) × 0.001163

With your value: 1 cal (IT) = 0.001163 Wh

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 Watt-Hour conversions

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

Calorie (IT) to Watt-Hour Conversion Table

Calorie (IT) (cal (IT))	Watt-Hour (Wh)
0.5	0.000582
1	0.001163
2	0.002326
5	0.005815
10	0.01163
15	0.017445
20	0.02326
25	0.029075
50	0.05815
100	0.1163
250	0.29075
500	0.5815
1000	1.163

Watt-Hour to Calorie (IT) Conversion Table

Watt-Hour (Wh)	Calorie (IT) (cal (IT))
0.5	429.922614
1	859.845228
2	1,719.690456
5	4,299.226139
10	8,598.452279
15	12,897.678418
20	17,196.904557
25	21,496.130696
50	42,992.261393
100	85,984.522786
250	214,961.306965
500	429,922.613929
1000	859,845.227859

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

Watt-Hour (Wh)

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 Watt-Hour

To convert from Calorie (IT) (cal (IT)) to Watt-Hour (Wh), multiply the value by 0.001163.

Formula: Wh = cal (IT) × 0.001163

Reverse: cal (IT) = Wh × 859.845227859

Step-by-Step Example

Start with your value in Calorie (IT). For example: 5 cal (IT)
Multiply by the conversion factor: 5 x 0.001163
The result is: 0.005815 Wh

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 Watt-Hour

The watt-hour (Wh) is a unit of energy and work. One watt-hour equals 3600 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 Watt-Hour are in 1 Calorie (IT)?

There are exactly 0.001163 Watt-Hour in 1 Calorie (IT). This means the conversion factor from Calorie (IT) to Watt-Hour is 0.001163.

What is the formula to convert Calorie (IT) to Watt-Hour?

The formula to convert Calorie (IT) to Watt-Hour is: Wh = cal (IT) × 0.001163. For example, to convert 10 Calorie (IT) to Watt-Hour, you would multiply 10 by 0.001163.

What is a Calorie (IT)?