Calories to Watt Hours (cal → Wh)
Formula
1 cal = 0.0011622222222222223 WhConversion Table
| cal | Wh |
|---|---|
| 0 | 0 |
| 1.0000 | 0.0011622 |
| 2.0000 | 0.0023244 |
| 3.0000 | 0.0034867 |
| 4.0000 | 0.0046489 |
| 5.0000 | 0.0058111 |
| 6.0000 | 0.0069733 |
| 7.0000 | 0.0081356 |
| 8.0000 | 0.0092978 |
| 9.0000 | 0.010460 |
| 10.000 | 0.011622 |
| 11.000 | 0.012784 |
| 12.000 | 0.013947 |
| 13.000 | 0.015109 |
| 14.000 | 0.016271 |
| 15.000 | 0.017433 |
| 16.000 | 0.018596 |
| 17.000 | 0.019758 |
| 18.000 | 0.020920 |
| 19.000 | 0.022082 |
| cal | Wh |
|---|---|
| 20.000 | 0.023244 |
| 21.000 | 0.024407 |
| 22.000 | 0.025569 |
| 23.000 | 0.026731 |
| 24.000 | 0.027893 |
| 25.000 | 0.029056 |
| 26.000 | 0.030218 |
| 27.000 | 0.031380 |
| 28.000 | 0.032542 |
| 29.000 | 0.033704 |
| 30.000 | 0.034867 |
| 31.000 | 0.036029 |
| 32.000 | 0.037191 |
| 33.000 | 0.038353 |
| 34.000 | 0.039516 |
| 35.000 | 0.040678 |
| 36.000 | 0.041840 |
| 37.000 | 0.043002 |
| 38.000 | 0.044164 |
| 39.000 | 0.045327 |
| cal | Wh |
|---|---|
| 40.000 | 0.046489 |
| 41.000 | 0.047651 |
| 42.000 | 0.048813 |
| 43.000 | 0.049976 |
| 44.000 | 0.051138 |
| 45.000 | 0.052300 |
| 46.000 | 0.053462 |
| 47.000 | 0.054624 |
| 48.000 | 0.055787 |
| 49.000 | 0.056949 |
| 50.000 | 0.058111 |
| 51.000 | 0.059273 |
| 52.000 | 0.060436 |
| 53.000 | 0.061598 |
| 54.000 | 0.062760 |
| 55.000 | 0.063922 |
| 56.000 | 0.065084 |
| 57.000 | 0.066247 |
| 58.000 | 0.067409 |
| 59.000 | 0.068571 |
| cal | Wh |
|---|---|
| 60.000 | 0.069733 |
| 61.000 | 0.070896 |
| 62.000 | 0.072058 |
| 63.000 | 0.073220 |
| 64.000 | 0.074382 |
| 65.000 | 0.075544 |
| 66.000 | 0.076707 |
| 67.000 | 0.077869 |
| 68.000 | 0.079031 |
| 69.000 | 0.080193 |
| 70.000 | 0.081356 |
| 71.000 | 0.082518 |
| 72.000 | 0.083680 |
| 73.000 | 0.084842 |
| 74.000 | 0.086004 |
| 75.000 | 0.087167 |
| 76.000 | 0.088329 |
| 77.000 | 0.089491 |
| 78.000 | 0.090653 |
| 79.000 | 0.091816 |
Calories to Watt Hours Conversion
Converting Calories (cal) to Watt Hours (Wh) is a common energy and power conversion. 1 cal equals 0.001162 Wh. For example, 100 cal is equal to 0.116222 Wh.
Quick Mental Math: Calories to Watt Hours
10 calories is 0.01162 watt hours, so use that as the mental anchor.
Why is converting Calories to Watt Hours tricky?
calories to watt hours is easy to botch because small calories and food Calories differ by a factor of 1,000.
Quick Reference Values
1 cal = 0.001162 Wh. 5 cal = 0.005811 Wh. 10 cal = 0.011622 Wh. 25 cal = 0.029056 Wh. 50 cal = 0.058111 Wh. 100 cal = 0.116222 Wh.
What is Calories?
Calories (cal) is a unit of energy and power. The calorie (cal) is defined as exactly 4.184 joules. It quantifies the energy needed to raise the temperature of one gram of water by 1°C under standard conditions. The calorie is widely used in chemistry and nutrition to express energy content [bipm-si-brochure]. The calorie was introduced in the early 19th century by Nicolas Clément and standardized internationally in the 20th century. It was adopted for practical energy measurement in chemistry and food science before the joule became the SI unit [bipm-si-brochure]. Calories remain common in food labeling, nutrition, and chemistry worldwide. The dietary Calorie (kcal) is prevalent in the US, Europe, and many countries while scientific contexts prefer the joule [bipm-si-brochure].
What is Watt Hours?
Watt Hours (Wh) is a unit of energy and power. A watt-hour (Wh) measures energy equivalent to one watt of power expended for one hour. It equals 3600 joules in SI derived units, where 1 Wh = 1 W × 3600 s. Watt-hours quantify electrical energy consumption and storage in batteries and utility meters [nist-si-guide]. The watt-hour emerged with the widespread use of electric power in the late 19th century. It was standardized as an energy unit by electrical engineers and later formalized within the International System of Units framework [bipm-si-brochure]. Utility companies worldwide bill electricity in kilowatt-hours, a multiple of watt-hours. The unit is critical for residential, commercial, and industrial energy monitoring and renewable energy systems across all continents [nist-si-guide].
Common Misspellings
People often search for this conversion using these alternate spellings: calorie, cal, calory, calo, watt hours, watt-hour, watt hour, watthours. All of these refer to the Calories to Watt Hours conversion.