BTU to Calories Conversion (BTU to cal)

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)	Calories (Th)
1	251.995761
2	503.991522
3	755.987283
4	1007.983044
5	1259.978805
6	1511.974566
7	1763.970327
8	2015.966088
9	2267.961849
10	2519.95761
15	3779.936415
20	5039.91522
25	6299.894025
30	7559.87283
35	8819.851635
40	10079.83044
45	11339.809245
50	12599.78805
60	15119.74566
70	17639.70327
80	20159.66088
90	22679.61849
100	25199.5761
150	37799.36415
200	50399.1522
250	62998.94025
500	125997.8805
1000	251995.761

Calories (Th)	Btu (Th)
100	0.396832072107753
200	0.793664144215505
300	1.19049621632326
400	1.58732828843101
500	1.98416036053876
600	2.38099243264652
700	2.77782450475427
800	3.17465657686202
900	3.57148864896977
1000	3.96832072107753
1500	5.95248108161629
2000	7.93664144215505
2500	9.92080180269382
3000	11.9049621632326
3500	13.8891225237713
4000	15.8732828843101
4500	17.8574432448489
5000	19.8416036053876
6000	23.8099243264652
7000	27.7782450475427
8000	31.7465657686202
9000	35.7148864896977
10000	39.6832072107753
15000	59.5248108161629
20000	79.3664144215505
25000	99.2080180269382
50000	198.416036053876
100000	396.832072107753