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Convertitive

Calories to Kilowatt-hours Converter

1 cal = 1.1622 × 10^−6 kWh

1 calorie equals 1.1622 × 10^−6 kilowatt-hours. To convert calories to kilowatt-hours, multiply the calorie value by 1.1622 × 10^−6. For quick reference: 1 cal = 1.1622 × 10^−6 kWh, 5 cal = 5.8111 × 10^−6 kWh, 10 cal = 1.1622 × 10^−5 kWh, 100 cal = 0.000116222 kWh.

1.1622 × 10^−6
FormulaKilowatt-hours = Calories × 1.1622 × 10^−6
Quick

How to convert calories to kilowatt-hours

  1. Take your value

    Start with your value in calories.

  2. Multiply by 1.1622 × 10^−6

    Multiply the calorie value by 1.1622 × 10^−6. This is the exact conversion factor from calories to kilowatt-hours.

  3. Read the result

    The product is your value in kilowatt-hours. For example, 5 cal × 1.1622 × 10^−6 = 5.8111 × 10^−6 kWh.

Conversion formula

The exact factor from calories to kilowatt-hours is 1.1622 × 10^−6.

Kilowatt-hours = Calories × 1.1622 × 10^−6

Calories to Kilowatt-hours conversion table

Fifty common reference values, hand-picked for skim utility. Use the calculator above for any value not listed.

Conversion table from calories to kilowatt-hours
Calories (cal)Kilowatt-hours (kWh)
0.001 cal1.1622 × 10^−9 kWh
0.01 cal1.1622 × 10^−8 kWh
0.1 cal1.1622 × 10^−7 kWh
0.5 cal5.8111 × 10^−7 kWh
1 cal1.1622 × 10^−6 kWh
1.5 cal1.7433 × 10^−6 kWh
2 cal2.3244 × 10^−6 kWh
5 cal5.8111 × 10^−6 kWh
10 cal1.1622 × 10^−5 kWh
20 cal2.3244 × 10^−5 kWh
50 cal5.8111 × 10^−5 kWh
100 cal0.00011622 kWh
200 cal0.00023244 kWh
250 cal0.00029056 kWh
500 cal0.00058111 kWh
1000 cal0.0011622 kWh
2000 cal0.0023244 kWh
2500 cal0.0029056 kWh
3600 cal0.004184 kWh
5000 cal0.0058111 kWh
7500 cal0.0087167 kWh
10000 cal0.011622 kWh
25000 cal0.029056 kWh
50000 cal0.058111 kWh
100000 cal0.11622 kWh
250000 cal0.29056 kWh
500000 cal0.58111 kWh
1000000 cal1.1622 kWh
2000000 cal2.3244 kWh
3600000 cal4.184 kWh
5000000 cal5.8111 kWh
10000000 cal11.622 kWh
25000000 cal29.056 kWh
50000000 cal58.111 kWh
100000000 cal116.22 kWh
250000000 cal290.56 kWh
500000000 cal581.11 kWh
1000000000 cal1162.2 kWh
2000000000 cal2324.4 kWh
5000000000 cal5811.1 kWh
10000000000 cal11622 kWh
20000000000 cal23244 kWh
50000000000 cal58111 kWh
100000000000 cal116222 kWh
1000000000000 cal1162222 kWh
10000000000000 cal11622222 kWh
100000000000000 cal116222222 kWh
1000000000000000 cal1162222222 kWh
10000000000000000 cal11622222222 kWh
100000000000000000 cal116222222222 kWh

Real-world reference

Burning a single dietary calorie of fat releases about 4.184 kJ of heat. A wooden match releases roughly 1,000 small calories.

Frequently asked questions

How many kilowatt-hours are in 1 calorie?
1 calorie equals 1.1622 × 10^−6 kilowatt-hours.
How do I convert calories to kilowatt-hours?
Multiply the calorie value by 1.1622 × 10^−6. So x cal × 1.1622 × 10^−6 = the equivalent in kWh.
What is 5 calories in kilowatt-hours?
5 calories equals 5.8111 × 10^−6 kilowatt-hours.
What is 10 calories in kilowatt-hours?
10 calories equals 1.1622 × 10^−5 kilowatt-hours.
What is 100 calories in kilowatt-hours?
100 calories equals 0.000116222 kilowatt-hours.
How do I convert back from kilowatt-hours to calories?
Multiply the kilowatt-hour value by 860421. For example, 1 kWh = 860421 cal.
Is the calorie bigger than the kilowatt-hour?
No. 1 calorie is smaller than 1 kilowatt-hour. It takes 860421 calories to equal 1 kilowatt-hour.
Are these conversion factors exact?
Yes. The factor of 1.1622 × 10^−6 is derived directly from the SI definitions of calorie and kilowatt-hour.

About the calorie and the kilowatt-hour

The calorie

Convertitive uses the thermochemical (small) calorie, defined as exactly 4.184 joules — the energy needed to raise 1 g of water by 1 °C. Do not confuse it with the large calorie (kcal) used on US nutrition labels, which is 1,000 of these small calories.

The kilowatt-hour

The kilowatt-hour (kWh) equals exactly 3,600,000 joules — the unit on every household electricity bill. One kWh runs a 1,000 W appliance for one hour.

Sources