Convert Kilocalories to BTU
1 kcal = 3.9657 BTU
Conversion Table
| kilocalories (kcal) | BTU (BTU) |
|---|---|
| 0.5 | 1.9828 |
| 1 | 3.9657 |
| 2 | 7.9313 |
| 5 | 19.8283 |
| 10 | 39.6565 |
| 25 | 99.1413 |
| 50 | 198.28 |
| 100 | 396.57 |
| 250 | 991.41 |
| 500 | 1982.83 |
| 1000 | 3965.65 |
How to Convert kilocalories to BTU
To convert kilocalories to BTU, multiply the value by the conversion factor:
For example: 10 kcal = 39.6565 BTU
About kilocalories and BTU
The Conversion Formula
To convert kilocalories to BTU, multiply the value by the conversion factor: 1 kcal = 3.9657 BTU. For a worked example, suppose you need to convert 25 kcal to BTU: 25 × 3.9657 = 99.1413 BTU. To convert in the opposite direction, divide by 3.9657, or equivalently multiply by 0.252165.
About kilocalories
The kilocalorie (kcal) is what we colloquially call a 'Calorie' (capital C) on food labels in the US. It equals 1,000 small chemistry calories. It represents the energy required to heat 1 kilogram of water by 1°C. Confusion between calories and Calories is one of the most common unit errors in the world! kilocalories are commonly used in US Food labels, Diet apps, Fitness trackers, and Nutrition science, Body metabolic rate.
An apple contains about 95 kilocalories (Calories).
About BTU
The British Thermal Unit (BTU) is the imperial counterpart to the calorie. It is the heat needed to raise 1 pound of water by 1°F. Despite its name, it is almost exclusively used in the United States today, particularly for heating (furnaces) and cooling (air conditioners). BTU are commonly used in AC unit ratings, Gas grills, Furnaces, and Water heaters, Propane tanks.
Burning a single wooden match releases about 1 BTU.
When Would You Convert kilocalories to BTU?
Converting between kilocalories and btu is one of the most common energy conversions. You might need this conversion when working with international specifications, following instructions written for a different measurement system, or comparing values across different standards. Having the conversion factor (1 kcal = 3.9657 BTU) memorized or bookmarked can save time in professional and everyday contexts alike.