Kilowatts to kilocalories per hour
Type a value in kilowatts to see it in kilocalories per hour straight away, or type in the second box to convert back.
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Processing and privacy: The result is calculated inside your browser and your data is not sent to any server.
How to use it
- Type the value in the kilowatts box.
- Read the result in kilocalories per hour as you type, and pick the precision you need.
- Swap the direction to convert back, or copy the result.
How it is calculated
kcal/h = kW × 859.8452279
Multiply the value in kilowatts by 859.8452279 to get kilocalories per hour.
Example
To convert 25 kW to kilocalories per hour: 25 × 859.8452279 = 21,496.1 kcal/h.
Conversion table
| Kilowatts (kW) | Kilocalories per hour (kcal/h) |
|---|---|
| 1 | 859.845 |
| 2 | 1,719.69 |
| 3 | 2,579.54 |
| 5 | 4,299.23 |
| 10 | 8,598.45 |
| 20 | 17,196.9 |
| 25 | 21,496.1 |
| 50 | 42,992.3 |
| 100 | 85,984.5 |
| 250 | 214,961 |
| 500 | 429,923 |
| 1,000 | 859,845 |
About the units
- Kilowatt
- A kilowatt is exactly 1000 watts, the usual unit for engines, heaters and solar systems.
- Kilocalorie per hour
- A kilocalorie per hour, using the International Table calorie of 4.1868 joules, is exactly 1.163 watts and is used to rate boilers and heaters.
Limits and caveats
- Results are rounded for display and computed with the browser's floating point precision (about 15 significant digits).
- Both unit factors are exact by their official definitions.
Questions about this tool
How many kilocalories per hour are in one kilowatt?
1 kW = 859.845 kcal/h exactly.
How do I convert kilowatts to kilocalories per hour?
Use kcal/h = kW × 859.8452279. For example, 25 kW = 21,496.1 kcal/h.
How many kilowatts are in one kilocalorie per hour?
1 kcal/h = 0.001163 kW.
What is the difference between mechanical and metric horsepower?
Mechanical horsepower is about 745.7 watts and is used in the US, while metric horsepower (PS) is 735.5 watts and is used in Europe and Japan. The same engine therefore shows a PS figure about 1.4% higher.
How many kilowatts is one ton of refrigeration?
One ton of refrigeration is 12000 BTU per hour, about 3.517 kW of cooling capacity. That is cooling output, not electricity use; the unit draws less power depending on its efficiency.