NiftyRecipe Online energy conversion
BTU/kWh 0.000293 BTU/kJ 1.055056 MJ/kJ 1000 BTU/kcal 0.252164 kWh/BTU 3412.141633 BTU/cal 252.164401
cal / BTU

15 calories in BTU

0.059485 BTU

1 cal = 0.003966 BTU · factor

This is energy conversion only-not a room-temperature or duct-size calculator.

Enter a value and click Calculate - opens the page with the new result

Formula: calorie to BTU

BTU = cal × 0.003966 (1 CAL = 0.003966 BTU)

Reference values: calorie → BTU
cal BTU
1 cal 0.003966 BTU
100 cal 0.396567 BTU
200 cal 0.793133 BTU
500 cal 1.982833 BTU
1000 cal 3.965667 BTU
2000 cal 7.931334 BTU

All amounts for this pair

FAQ for cal → BTU
15 calories in BTU

15 calories is 0.059485 BTU on NiftyRecipe using a fixed thermal-energy factor.

British thermal units show up on air-conditioner nameplates, furnace ratings and heating-load notes. Converting them to kcal, kJ or kWh uses 1 calorie = 0.003966 BTU, so this amount becomes 0.059485 BTU. Reverse: 1 BTU ≈ 252.164401 calorie.

The text stays on capacity and energy equivalence-not oven temperatures or duct geometry-so these pages stay distinct from food-label converters. Adjust the amount above for different appliance ratings or textbook examples.