Convert BTUs to calories

How many calories are in a btu? Easy btus to cal conversion.

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BTUs
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Joules
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Kilojoules
Kilowatt Hours
calories

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Amount

1 BTU =
252.16444 calories
(rounded to 8 digits)

Display result as

Number
Fraction (exact value)

A British thermal unit is the amount of energy required to heat a pound of water by 1 degree Fahrenheit. This can vary slightly depending on the temperature of the water, therefore different estimates for the BTU exist. The International Standards Organization defines a BTU as 1055.056 joules.

A lower-case calorie, or small calorie, is the amount of energy required to heat one gram of water by one degree Celsius. This can vary depending on the temperature of water, but the ISO defines a calorie as 4.184 joules. This unit should not be confused with an upper-case Calorie, or kilocalorie, which is commonly used in food labeling.

BTUs to calories Conversion Table
(some results rounded)

btus	cal
0.0001	0.025216
0.0002	0.050433
0.0003	0.075649
0.0004	0.10087
0.0005	0.12608
0.0006	0.15130
0.0007	0.17652
0.0008	0.20173
0.0009	0.22695
0.001	0.25216
0.002	0.50433
0.003	0.75649
0.004	1.0087
0.005	1.2608
0.006	1.5130
0.007	1.7652
0.008	2.0173
0.009	2.2695
0.01	2.5216
0.02	5.0433
0.03	7.5649
0.04	10.087
0.05	12.608
0.06	15.130
0.07	17.652
0.08	20.173
0.09	22.695
0.1	25.216
0.2	50.433
0.3	75.649
0.4	100.87
0.5	126.08
0.6	151.30
0.7	176.52
0.8	201.73
0.9	226.95
1	252.16
2	504.33
3	756.49
4	1,008.7
5	1,260.8
6	1,513.0
7	1,765.2
8	2,017.3
9	2,269.5
10	2,521.6
11	2,773.8
12	3,026.0
13	3,278.1
14	3,530.3
15	3,782.5
16	4,034.6
17	4,286.8
18	4,539.0
19	4,791.1
20	5,043.3
21	5,295.5
22	5,547.6
23	5,799.8
24	6,051.9
25	6,304.1
26	6,556.3
27	6,808.4
28	7,060.6
29	7,312.8
30	7,564.9
31	7,817.1
32	8,069.3
33	8,321.4
34	8,573.6
35	8,825.8
36	9,077.9
37	9,330.1
38	9,582.2
39	9,834.4
40	10,087
41	10,339
42	10,591
43	10,843
44	11,095
45	11,347
46	11,600
47	11,852
48	12,104
49	12,356
50	12,608
51	12,860
52	13,113
53	13,365
54	13,617
55	13,869
56	14,121
57	14,373
58	14,626
59	14,878
60	15,130
61	15,382
62	15,634
63	15,886
64	16,139
65	16,391
66	16,643
67	16,895
68	17,147
69	17,399
70	17,652
71	17,904
72	18,156
73	18,408
74	18,660
75	18,912
76	19,164
77	19,417
78	19,669
79	19,921
80	20,173
81	20,425
82	20,677
83	20,930
84	21,182
85	21,434
86	21,686
87	21,938
88	22,190
89	22,443
90	22,695
91	22,947
92	23,199
93	23,451
94	23,703
95	23,956
96	24,208
97	24,460
98	24,712
99	24,964
100	25,216
101	25,469
102	25,721
103	25,973
104	26,225
105	26,477
106	26,729

btus	cal
107	26,982
108	27,234
109	27,486
110	27,738
111	27,990
112	28,242
113	28,495
114	28,747
115	28,999
116	29,251
117	29,503
118	29,755
119	30,008
120	30,260
121	30,512
122	30,764
123	31,016
124	31,268
125	31,521
126	31,773
127	32,025
128	32,277
129	32,529
130	32,781
131	33,034
132	33,286
133	33,538
134	33,790
135	34,042
136	34,294
137	34,547
138	34,799
139	35,051
140	35,303
141	35,555
142	35,807
143	36,060
144	36,312
145	36,564
146	36,816
147	37,068
148	37,320
149	37,573
150	37,825
151	38,077
152	38,329
153	38,581
154	38,833
155	39,085
156	39,338
157	39,590
158	39,842
159	40,094
160	40,346
161	40,598
162	40,851
163	41,103
164	41,355
165	41,607
166	41,859
167	42,111
168	42,364
169	42,616
170	42,868
171	43,120
172	43,372
173	43,624
174	43,877
175	44,129
176	44,381
177	44,633
178	44,885
179	45,137
180	45,390
181	45,642
182	45,894
183	46,146
184	46,398
185	46,650
186	46,903
187	47,155
188	47,407
189	47,659
190	47,911
191	48,163
192	48,416
193	48,668
194	48,920
195	49,172
196	49,424
197	49,676
198	49,929
199	50,181
200	50,433
201	50,685
202	50,937
203	51,189
204	51,442
205	51,694
206	51,946
207	52,198
208	52,450
209	52,702
210	52,955
211	53,207
212	53,459
213	53,711
214	53,963
215	54,215
216	54,468
217	54,720
218	54,972
219	55,224
220	55,476
221	55,728
222	55,981
223	56,233
224	56,485
225	56,737
226	56,989
227	57,241
228	57,493
229	57,746
230	57,998
231	58,250
232	58,502
233	58,754
234	59,006
235	59,259
236	59,511
237	59,763
238	60,015
239	60,267
240	60,519
241	60,772
242	61,024
243	61,276
244	61,528
245	61,780
246	62,032
247	62,285
248	62,537

btus	cal
249	62,789
250	63,041
251	63,293
252	63,545
253	63,798
254	64,050
255	64,302
256	64,554
257	64,806
258	65,058
259	65,311
260	65,563
261	65,815
262	66,067
263	66,319
264	66,571
265	66,824
266	67,076
267	67,328
268	67,580
269	67,832
270	68,084
271	68,337
272	68,589
273	68,841
274	69,093
275	69,345
276	69,597
277	69,850
278	70,102
279	70,354
280	70,606
281	70,858
282	71,110
283	71,363
284	71,615
285	71,867
286	72,119
287	72,371
288	72,623
289	72,876
290	73,128
291	73,380
292	73,632
293	73,884
294	74,136
295	74,389
296	74,641
297	74,893
298	75,145
299	75,397
300	75,649
305	76,910
310	78,171
315	79,432
320	80,693
325	81,953
330	83,214
335	84,475
340	85,736
345	86,997
350	88,258
355	89,518
360	90,779
365	92,040
370	93,301
375	94,562
380	95,822
385	97,083
390	98,344
395	99,605
400	100,866
405	102,127
410	103,387
415	104,648
420	105,909
425	107,170
430	108,431
435	109,692
440	110,952
445	112,213
450	113,474
455	114,735
460	115,996
465	117,256
470	118,517
475	119,778
480	121,039
485	122,300
490	123,561
495	124,821
500	126,082
505	127,343
510	128,604
515	129,865
520	131,126
525	132,386
530	133,647
535	134,908
540	136,169
545	137,430
550	138,690
555	139,951
560	141,212
565	142,473
570	143,734
575	144,995
580	146,255
585	147,516
590	148,777
595	150,038
600	151,299
605	152,559
610	153,820
615	155,081
620	156,342
625	157,603
630	158,864
635	160,124
640	161,385
645	162,646
650	163,907
655	165,168
660	166,429
665	167,689
670	168,950
675	170,211
680	171,472
685	172,733
690	173,993
695	175,254
700	176,515
705	177,776
710	179,037
715	180,298
720	181,558
725	182,819
730	184,080
735	185,341
740	186,602
745	187,863
750	189,123

btus	cal
755	190,384
760	191,645
765	192,906
770	194,167
775	195,427
780	196,688
785	197,949
790	199,210
795	200,471
800	201,732
805	202,992
810	204,253
815	205,514
820	206,775
825	208,036
830	209,296
835	210,557
840	211,818
845	213,079
850	214,340
855	215,601
860	216,861
865	218,122
870	219,383
875	220,644
880	221,905
885	223,166
890	224,426
895	225,687
900	226,948
905	228,209
910	229,470
915	230,730
920	231,991
925	233,252
930	234,513
935	235,774
940	237,035
945	238,295
950	239,556
955	240,817
960	242,078
965	243,339
970	244,600
975	245,860
980	247,121
985	248,382
990	249,643
995	250,904
1,000	252,164
1,100	277,381
1,200	302,597
1,300	327,814
1,400	353,030
1,500	378,247
1,600	403,463
1,700	428,680
1,800	453,896
1,900	479,112
2,000	504,329
2,100	529,545
2,200	554,762
2,300	579,978
2,400	605,195
2,500	630,411
2,600	655,628
2,700	680,844
2,800	706,060
2,900	731,277
3,000	756,493
3,100	781,710
3,200	806,926
3,300	832,143
3,400	857,359
3,500	882,576
3,600	907,792
3,700	933,008
3,800	958,225
3,900	983,441
4,000	1,008,658
4,100	1,033,874
4,200	1,059,091
4,300	1,084,307
4,400	1,109,524
4,500	1,134,740
4,600	1,159,956
4,700	1,185,173
4,800	1,210,389
4,900	1,235,606
5,000	1,260,822
5,100	1,286,039
5,200	1,311,255
5,300	1,336,472
5,400	1,361,688
5,500	1,386,904
5,600	1,412,121
5,700	1,437,337
5,800	1,462,554
5,900	1,487,770
6,000	1,512,987
6,100	1,538,203
6,200	1,563,420
6,300	1,588,636
6,400	1,613,852
6,500	1,639,069
6,600	1,664,285
6,700	1,689,502
6,800	1,714,718
6,900	1,739,935
7,000	1,765,151
7,100	1,790,367
7,200	1,815,584
7,300	1,840,800
7,400	1,866,017
7,500	1,891,233
7,600	1,916,450
7,700	1,941,666
7,800	1,966,883
7,900	1,992,099
8,000	2,017,315
8,100	2,042,532
8,200	2,067,748
8,300	2,092,965
8,400	2,118,181
8,500	2,143,398
8,600	2,168,614
8,700	2,193,831
8,800	2,219,047
8,900	2,244,263
9,000	2,269,480
9,100	2,294,696
9,200	2,319,913
9,300	2,345,129
9,400	2,370,346
9,500	2,395,562
9,600	2,420,779
9,700	2,445,995
9,800	2,471,211
9,900	2,496,428
10,000	2,521,644