Convert calories to BTUs

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To

Amount

Result

1 calorie =
0.003965666 BTUs
(rounded to 6 significant digits)

Display Result As

calories

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

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 Orginzation defines a BTU as 1055.056 joules.

calories to BTUs Conversion Table inverse table
(some results are rounded)
cal BTU
1 0.003966
2 0.007931
3 0.0119
4 0.01586
5 0.01983
6 0.02379
7 0.02776
8 0.03173
9 0.03569
10 0.03966
11 0.04362
12 0.04759
13 0.05155
14 0.05552
15 0.05948
16 0.06345
17 0.06742
18 0.07138
19 0.07535
20 0.07931
21 0.08328
22 0.08724
23 0.09121
24 0.09518
25 0.09914
26 0.1031
27 0.1071
28 0.111
29 0.115
30 0.119
31 0.1229
32 0.1269
33 0.1309
34 0.1348
35 0.1388
36 0.1428
37 0.1467
38 0.1507
39 0.1547
40 0.1586
41 0.1626
42 0.1666
43 0.1705
44 0.1745
45 0.1785
46 0.1824
47 0.1864
48 0.1904
49 0.1943
50 0.1983
51 0.2022
52 0.2062
53 0.2102
54 0.2141
55 0.2181
56 0.2221
57 0.226
58 0.23
59 0.234
60 0.2379
61 0.2419
62 0.2459
63 0.2498
64 0.2538
65 0.2578
66 0.2617
67 0.2657
68 0.2697
cal BTU
69 0.2736
70 0.2776
71 0.2816
72 0.2855
73 0.2895
74 0.2935
75 0.2974
76 0.3014
77 0.3054
78 0.3093
79 0.3133
80 0.3173
81 0.3212
82 0.3252
83 0.3292
84 0.3331
85 0.3371
86 0.341
87 0.345
88 0.349
89 0.3529
90 0.3569
91 0.3609
92 0.3648
93 0.3688
94 0.3728
95 0.3767
96 0.3807
97 0.3847
98 0.3886
99 0.3926
100 0.3966
101 0.4005
102 0.4045
103 0.4085
104 0.4124
105 0.4164
106 0.4204
107 0.4243
108 0.4283
109 0.4323
110 0.4362
111 0.4402
112 0.4442
113 0.4481
114 0.4521
115 0.4561
116 0.46
117 0.464
118 0.4679
119 0.4719
120 0.4759
121 0.4798
122 0.4838
123 0.4878
124 0.4917
125 0.4957
126 0.4997
127 0.5036
128 0.5076
129 0.5116
130 0.5155
131 0.5195
132 0.5235
133 0.5274
134 0.5314
135 0.5354
136 0.5393
cal BTU
137 0.5433
138 0.5473
139 0.5512
140 0.5552
141 0.5592
142 0.5631
143 0.5671
144 0.5711
145 0.575
146 0.579
147 0.583
148 0.5869
149 0.5909
150 0.5948
151 0.5988
152 0.6028
153 0.6067
154 0.6107
155 0.6147
156 0.6186
157 0.6226
158 0.6266
159 0.6305
160 0.6345
161 0.6385
162 0.6424
163 0.6464
164 0.6504
165 0.6543
166 0.6583
167 0.6623
168 0.6662
169 0.6702
170 0.6742
171 0.6781
172 0.6821
173 0.6861
174 0.69
175 0.694
176 0.698
177 0.7019
178 0.7059
179 0.7099
180 0.7138
181 0.7178
182 0.7218
183 0.7257
184 0.7297
185 0.7336
186 0.7376
187 0.7416
188 0.7455
189 0.7495
190 0.7535
191 0.7574
192 0.7614
193 0.7654
194 0.7693
195 0.7733
196 0.7773
197 0.7812
198 0.7852
199 0.7892
200 0.7931
205 0.813
210 0.8328
215 0.8526
220 0.8724
cal BTU
225 0.8923
230 0.9121
235 0.9319
240 0.9518
245 0.9716
250 0.9914
255 1.0112
260 1.0311
265 1.0509
270 1.0707
275 1.0906
280 1.1104
285 1.1302
290 1.1500
295 1.1699
300 1.1897
305 1.2095
310 1.2294
315 1.2492
320 1.2690
325 1.2888
330 1.3087
335 1.3285
340 1.3483
345 1.3682
350 1.3880
355 1.4078
360 1.4276
365 1.4475
370 1.4673
375 1.4871
380 1.5070
385 1.5268
390 1.5466
395 1.5664
400 1.5863
405 1.6061
410 1.6259
415 1.6458
420 1.6656
425 1.6854
430 1.7052
435 1.7251
440 1.7449
445 1.7647
450 1.7845
455 1.8044
460 1.8242
465 1.8440
470 1.8639
475 1.8837
480 1.9035
485 1.9233
490 1.9432
495 1.9630
500 1.9828
510 2.0225
520 2.0621
530 2.1018
540 2.1415
550 2.1811
560 2.2208
570 2.2604
580 2.3001
590 2.3397
600 2.3794
610 2.4191
620 2.4587
cal BTU
630 2.4984
640 2.5380
650 2.5777
660 2.6173
670 2.6570
680 2.6967
690 2.7363
700 2.7760
710 2.8156
720 2.8553
730 2.8949
740 2.9346
750 2.9742
760 3.0139
770 3.0536
780 3.0932
790 3.1329
800 3.1725
810 3.2122
820 3.2518
830 3.2915
840 3.3312
850 3.3708
860 3.4105
870 3.4501
880 3.4898
890 3.5294
900 3.5691
910 3.6088
920 3.6484
930 3.6881
940 3.7277
950 3.7674
960 3.8070
970 3.8467
980 3.8864
990 3.9260
1,000 3.9657
1,100 4.3622
1,200 4.7588
1,300 5.1554
1,400 5.5519
1,500 5.9485
1,600 6.3451
1,700 6.7416
1,800 7.1382
1,900 7.5348
2,000 7.9313
3,000 11.897
4,000 15.863
5,000 19.828
6,000 23.794
7,000 27.760
8,000 31.725
9,000 35.691
10,000 39.657
20,000 79.313
30,000 118.97
40,000 158.63
50,000 198.28
60,000 237.94
70,000 277.60
80,000 317.25
90,000 356.91
100,000 396.57