Convert BTU per Hour to Calories per Second
Convert BTU per Hour (BTU/h) to Calories per Second (cal/s) instantly and accurately.
Conversion Formula
cal/s = BTU/h × 0.06999882253
About BTU per Hour
One BTU per hour (BTU/h) ≈ 0.2931 W - the dominant HVAC capacity unit in the US and Canada. Room air conditioners are universally rated in BTU/h: 12,000 BTU/h = 1 ton of refrigeration = 3,517 W. Home furnaces range from 40,000-150,000 BTU/h. Office building cooling demand is calculated in BTU/h per ft². Engineers convert: BTU/h × 0.2931 = W; or W × 3.412 = BTU/h. 1 BTU/h = 0.29307 W.
About Calories per Second
One calorie per second (cal/s) = exactly 4.1868 W. It bridges thermochemistry and power: bomb calorimeters and reaction calorimeters characterise exothermic events by cal/s during the reaction interval. Food science uses cal/s to model heat transfer into food during frying or roasting. Since 1 kcal/s = 4,186.8 W, kilocalories per second appear in high-intensity industrial dryers and continuous-flow reactor heat duties. 1 cal/s = 4.1868 W.
Quick Reference Table
| BTU per Hour (BTU/h) | Calories per Second (cal/s) |
|---|---|
| 1 BTU/h | 0.0699988 cal/s |
| 2 BTU/h | 0.139998 cal/s |
| 5 BTU/h | 0.349994 cal/s |
| 10 BTU/h | 0.699988 cal/s |
| 25 BTU/h | 1.74997 cal/s |
| 50 BTU/h | 3.49994 cal/s |
| 100 BTU/h | 6.99988 cal/s |