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Enter your value above to convert kilocalorie (th)/hour units to watts or vice versa.
Real-World Examples
The Uses of Kilocalorie (th)/Hour units to Watts Conversion
The thermochemical kilocalorie per hour appears mainly in older research literature, so this conversion is most useful when comparing against a modern electrical power figure given in watts.
Reading Older Nutrition and Physiology Literature
Nutrition historians who compare a modern device's power draw in watts convert an older study's reported metabolic rate, given in thermochemical kilocalories per hour, into watts for a consistent comparison.
Comparing Thermochemical Reaction Rates to Electrical Standards
Chemists who calculate a lab instrument's power draw in watts convert a sustained reaction's heat output, measured in kilocalories (th) per hour, into watts for a complete energy balance.
Cross-Referencing Legacy Calorimetry Data
Researchers reviewing legacy calorimetry papers that report heat output in kilocalories (th) per hour convert the figure into watts to compare against modern SI-based experimental results.
Quick Reference
Comprehensive Conversion Table
Our quick table gives you instant results, so you don't have to calculate these common values manually.
| Conversion | Formula | Result (W) |
|---|---|---|
| 1 kcal(th)/h to W | 1 × 1.1622222222222223 | 1.16 W |
| 2 kcal(th)/h to W | 2 × 1.1622222222222223 | 2.32 W |
| 3 kcal(th)/h to W | 3 × 1.1622222222222223 | 3.49 W |
| 5 kcal(th)/h to W | 5 × 1.1622222222222223 | 5.81 W |
| 10 kcal(th)/h to W | 10 × 1.1622222222222223 | 11.62 W |
| 20 kcal(th)/h to W | 20 × 1.1622222222222223 | 23.24 W |
| 50 kcal(th)/h to W | 50 × 1.1622222222222223 | 58.11 W |
| 100 kcal(th)/h to W | 100 × 1.1622222222222223 | 116.22 W |
| 500 kcal(th)/h to W | 500 × 1.1622222222222223 | 581.11 W |
Got Questions?
Frequently Asked Questions
How many watts are in 1 kilocalorie (th)/hour?
1 kilocalorie (th)/hour equals 1.16222 watts, a figure useful for anyone working at the thermochemical reaction rate and older nutrition literature scale.
How many kilocalorie (th)/hour units are in 1 watt?
1 watt equals approximately 0.860421 kilocalorie (th)/hours, which puts the size of a single watt into perspective against the kilocalorie (th)/hour.
Why would anyone convert kilocalories (th) per hour to watts?
This comes up when comparing older nutrition or thermochemistry literature, which reported energy rates in thermochemical kilocalories per hour, against a modern electrical power figure in watts.
What's the difference between kilocalorie (th) and kilocalorie (IT)?
The thermochemical kilocalorie (th), 4,184 joules, is very slightly smaller than the International Table kilocalorie (IT), 4,186.8 joules, the modern standard used in most nutrition labeling today.