Kilocalorie to Watt-Hour Converter
Convert Kilocalorie (kcal) to Watt-Hour (Wh) instantly. 1 kcal = 1.162222 Wh.
Energy Converter
27 units available
1 kcal = 1.162222 Wh
Formula:
Wh = kcal × 1.1622222222With your value: 1 kcal = 1.16222222 Wh
How big is that?
Everyday references on a logarithmic scale, all expressed in kilocalorie so you can sanity-check the result.
Other Kilocalorie to Watt-Hour conversions
Kilocalorie to Watt-Hour Conversion Table
| Kilocalorie (kcal) | Watt-Hour (Wh) |
|---|---|
| 0.5 | 0.581111 |
| 1 | 1.162222 |
| 2 | 2.324444 |
| 5 | 5.811111 |
| 10 | 11.622222 |
| 15 | 17.433333 |
| 20 | 23.244444 |
| 25 | 29.055556 |
| 50 | 58.111111 |
| 100 | 116.222222 |
| 250 | 290.555556 |
| 500 | 581.111111 |
| 1000 | 1,162.222222 |
Watt-Hour to Kilocalorie Conversion Table
| Watt-Hour (Wh) | Kilocalorie (kcal) |
|---|---|
| 0.5 | 0.43021 |
| 1 | 0.860421 |
| 2 | 1.720841 |
| 5 | 4.302103 |
| 10 | 8.604207 |
| 15 | 12.90631 |
| 20 | 17.208413 |
| 25 | 21.510516 |
| 50 | 43.021033 |
| 100 | 86.042065 |
| 250 | 215.105163 |
| 500 | 430.210325 |
| 1000 | 860.42065 |
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.
Kilocalorie (kcal)
Energy
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
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 Kilocalorie to Watt-Hour
To convert from Kilocalorie (kcal) to Watt-Hour (Wh), multiply the value by 1.1622222222.
Formula: Wh = kcal × 1.1622222222
Reverse: kcal = Wh × 0.8604206501
Step-by-Step Example
- Start with your value in Kilocalorie. For example: 5 kcal
- Multiply by the conversion factor: 5 x 1.1622222222
- The result is: 5.811111 Wh
About Kilocalorie
The kilocalorie (food Calorie) equals 1,000 calories or 4,184 joules. It is the standard unit for food energy content.
Common uses: nutrition, diet, food labeling.
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 Kilocalorie?
There are exactly 1.1622222222 Watt-Hour in 1 Kilocalorie. This means the conversion factor from Kilocalorie to Watt-Hour is 1.1622222222.
What is the formula to convert Kilocalorie to Watt-Hour?
The formula to convert Kilocalorie to Watt-Hour is: Wh = kcal × 1.1622222222. For example, to convert 10 Kilocalorie to Watt-Hour, you would multiply 10 by 1.1622222222.
What is a Kilocalorie?
The kilocalorie (food Calorie) equals 1,000 calories or 4,184 joules. It is the standard unit for food energy content.
What is a 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.
What are the common uses of Kilocalorie?
The Kilocalorie is commonly used in nutrition, diet, food labeling.
Related Energy Conversions
Cite this page
UnitConvertLab. (2026). Kilocalorie to Watt-Hour converter. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/kilocalorie-to-watt_hour