At One Place

Calories to watt-hours

1 calorie in watt-hours
1 cal = 0.0011622 Wh
Wh = cal × 0.001162222222

To convert calories to watt-hours, multiply by 0.001162222222. The table below gives the values people look up most often, and the converter works for any number.

Calories to watt-hours table

Common calorie values converted to watt-hours.
Calories Watt-hours
1 cal 0.0011622
2 cal 0.0023244
3 cal 0.0034867
4 cal 0.0046489
5 cal 0.0058111
10 cal 0.011622
15 cal 0.017433
20 cal 0.023244
25 cal 0.029056
30 cal 0.034867
40 cal 0.046489
50 cal 0.058111
75 cal 0.087167
100 cal 0.11622
250 cal 0.29056
500 cal 0.58111
1,000 cal 1.162222

How the conversion works

The relationship is Wh = cal × 0.001162222222. Both units measure energy, so the conversion is a fixed factor that never changes.

Calorie: Thermochemical (small) calorie.

Common questions

How many watt-hours are in one calorie?
One calorie equals 0.0011622 watt-hours. Wh = cal × 0.001162222222.
How do you convert calories to watt-hours?
Use Wh = cal × 0.001162222222. So 10 cal is 0.011622 Wh.
How many calories are in one watt-hour?
One watt-hour equals 860.4207 calories, which is the reverse of the conversion above.
Is there more than one kind of calorie?
Thermochemical (small) calorie.

Related pages

Sources

  1. Guide for the Use of the International System of Units (SP 811) — NIST (Public domain (US Government))
  2. The International System of Units (SI Brochure) — Bureau International des Poids et Mesures
  3. Calculated on this page — At One Place

How these figures are compiled and checked