NiftyRecipe Online energy conversion
cal/kJ 0.004184 BTU/kJ 1.055056 cal/MJ 0.000004 kJ/BTU 0.947817 MJ/kcal 239.005736 kWh/MJ 3.6
BTU / kJ

450 BTUs in kilojoule

474.775134 kilojoule

1 BTU = 1.055056 kJ · 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

Common values

kilojoule to BTU 1 BTU in kilojoule 2 BTUs in kilojoule 3 BTUs in kilojoule 4 BTUs in kilojoule 5 BTUs in kilojoule 6 BTUs in kilojoule 8 BTUs in kilojoule 10 BTUs in kilojoule 12 BTUs in kilojoule 15 BTUs in kilojoule

Same amount, other units

450 BTUs → kcal 450 BTUs → cal 450 BTUs → kWh 450 BTUs → MJ

Related converters

BTU → kcal BTU → cal BTU → kWh BTU → MJ
Formula: BTU to kilojoule

kJ = BTU × 1.055056 (1 BTU = 1.055056 KJ)

Reference values: BTU → kilojoule
BTU kJ
1 BTU 1.055056 kJ
100 BTU 105.505585 kJ
200 BTU 211.011171 kJ
500 BTU 527.527926 kJ
1000 BTU 1055.055853 kJ
2000 BTU 2110.111705 kJ

All amounts for this pair

FAQ for BTU → kJ
450 BTUs in kilojoule

450 BTUs is 474.775134 kilojoule 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 BTU = 1.055056 kilojoule, so this amount becomes 474.775134 kilojoule. Reverse: 1 kilojoule ≈ 0.947817 BTU.

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.