BTU to Joules Conversion (BTU to J)

Published: 6/9/2021 Last updated: 6/9/2021

Warning: The energy needed to increase the temperature of 1 g of water by 1 °C varies depending on the starting temperature, and is in any case difficult to measure precisely. In this page we use the Thermochemical calorie = 4.184 joules. This value is used to calculate the Thermochemical Btu

Btu (Th)	Joules
1	1054.35
2	2108.7
3	3163.05
4	4217.4
5	5271.75
6	6326.1
7	7380.45
8	8434.8
9	9489.15
10	10543.5
15	15815.25
20	21087
25	26358.75
30	31630.5
35	36902.25
40	42174
45	47445.75
50	52717.5
60	63261
70	73804.5
80	84348
90	94891.5
100	105435
150	158152.5
200	210870
250	263587.5
500	527175
1000	1054350

Joules	Btu (Th)
100	0.0948451652677005
200	0.189690330535401
300	0.284535495803101
400	0.379380661070802
500	0.474225826338502
600	0.569070991606203
700	0.663916156873903
800	0.758761322141604
900	0.853606487409304
1000	0.948451652677005
1500	1.42267747901551
2000	1.89690330535401
2500	2.37112913169251
3000	2.84535495803101
3500	3.31958078436952
4000	3.79380661070802
4500	4.26803243704652
5000	4.74225826338502
6000	5.69070991606203
7000	6.63916156873903
8000	7.58761322141604
9000	8.53606487409304
10000	9.48451652677005
15000	14.2267747901551
20000	18.9690330535401
25000	23.7112913169251
50000	47.4225826338502
100000	94.8451652677005