Kilocalorie to Watt Hour Converter
Energy · unit-converter
Convert Kilocalorie to Watt Hour with fixed input and output units, a step-by-step formula line, and reference tables. Factors are joule-based; food energy uses thermochemical calories. The full Energy Converter also includes MMBtu, toe, thermal kWh, and MeV/GeV.
Calculator
From: Kilocalorie (kcal)
To: Watt Hour (wh)
About Kilocalorie
The kilocalorie (kcal) is 1,000 calories in the nutrition sense—often labeled “Calorie” on food packaging. Here 1 kcal = 4,184 J (thermochemical calorie definition used in this tool).
About Watt Hour
One watt-hour is 3,600 J—the energy from 1 W for one hour. Common for small batteries and device ratings.
How to convert kilocalories to watt hours
1 kilocalorie is equal to 1.16222222222222 watt hour when both are expressed in joule-equivalents:
1 kcal = (4,184 J ÷ 3,600 J) wh = 1.16222222222222 wh
Each kilocalorie is defined as 4,184 J and each watt hour as 3,600 J in this tool, so one kcal equals 4,184 ÷ 3,600 wh = 1.16222222222222 wh.
Let d(kcal) be the numeric amount in Kilocalorie (kcal), and d(wh) the amount in Watt Hour (wh). Then:
d(wh) = d(kcal) × (4,184 / 3,600)
Equivalently, divide by how many kcal fit into one wh (joules per wh divided by joules per kcal):
d(wh) = d(kcal) ÷ 0.8604206500956
Or: watt hour = kilocalorie ÷ 0.8604206500956
Examples
Example #1: Convert 1 kcal to watt hour
1 kcal = 1 kcal × (4,184/3,600) wh = 1.1622222222 wh
1 kcal = 1 kcal ÷ 0.8604206500956 = 1.1622222222 wh
Example #2: Convert 10 kcal to watt hour
10 kcal = 10 kcal × (4,184/3,600) wh = 11.6222222222 wh
10 kcal = 10 kcal ÷ 0.8604206500956 = 11.6222222222 wh
Summary
To convert Kilocalorie to Watt Hour, multiply the value in kcal by the ratio of joules per kcal divided by joules per wh. Equivalently: value_wh = value_kcal × (4184 / 3600). Numerically, 1 kcal equals 1.1622222222222223 wh.
Relationship context
You are converting between food / nutrition energy (calories) (Kilocalories) and electrical energy (watt-hours) (Watt Hours). All values are mapped through joules first. The numeric factor is 1.162222e+0.
Conversion tables
| Kilocalorie (kcal) | Watt Hour (wh) |
|---|---|
| 0.1 | 0.1162222222 |
| 1 | 1.1622222222 |
| 2 | 2.3244444444 |
| 3 | 3.4866666667 |
| 4 | 4.6488888889 |
| 5 | 5.8111111111 |
| 6 | 6.9733333333 |
| 7 | 8.1355555556 |
| 8 | 9.2977777778 |
| 9 | 10.46 |
| Kilocalorie (kcal) | Watt Hour (wh) |
|---|---|
| 10 | 11.6222222222 |
| 20 | 23.2444444444 |
| 30 | 34.8666666667 |
| 40 | 46.4888888889 |
| 50 | 58.1111111111 |
| 60 | 69.7333333333 |
| 70 | 81.3555555556 |
| 80 | 92.9777777778 |
| 90 | 104.6 |
| 100 | 116.222222222 |