卡路里（15°C，NBS 1939）
15°C NBS 1939卡路里是指在标准大气压下，将一克水的温度从14.5°C升高到15.5°C所需的能量。这一特定定义是由国家标准局（NBS）在1939年制定的。
Btu（热力学）
Btu（热化学）变体与热化学卡路里一致，定义为在一大气压下将一磅水的温度提高一华氏度所需的能量，大约相当于1,054.350焦耳。
卡路里（15°C，NBS 1939）到英热单位（热力学） 转换计算器
1cal(NBS) = 0.00397Btu (thermoc.)
注意: 您可以通过从结果上方的选项中选择所需的有效数字数量来增加或减少此答案的准确性。
卡路里（15°C，NBS 1939） 到 Btu（热力学） 转换公式
Btu（热力学） = 卡路里（15°C，NBS 1939） / 251.88726534
卡路里（15°C，NBS 1939） 到 Btu（热力学） 计算
Btu（热力学） = 卡路里（15°C，NBS 1939） / 251.88726534
Btu（热力学） = 1 / 251.88755138642
Btu（热力学） = 0.00397
卡路里（15°C，NBS 1939） 到 Btu（热力学） 表格
起始值
增量
准确度
卡路里（15°C，NBS 1939）
Btu（热力学）
0cal(NBS)
0.00000Btu (thermoc.)
1cal(NBS)
0.00397Btu (thermoc.)
2cal(NBS)
0.00794Btu (thermoc.)
3cal(NBS)
0.01191Btu (thermoc.)
4cal(NBS)
0.01588Btu (thermoc.)
5cal(NBS)
0.01985Btu (thermoc.)
6cal(NBS)
0.02382Btu (thermoc.)
7cal(NBS)
0.02779Btu (thermoc.)
8cal(NBS)
0.03176Btu (thermoc.)
9cal(NBS)
0.03573Btu (thermoc.)
10cal(NBS)
0.03970Btu (thermoc.)
11cal(NBS)
0.04367Btu (thermoc.)
12cal(NBS)
0.04764Btu (thermoc.)
13cal(NBS)
0.05161Btu (thermoc.)
14cal(NBS)
0.05558Btu (thermoc.)
15cal(NBS)
0.05955Btu (thermoc.)
16cal(NBS)
0.06352Btu (thermoc.)
17cal(NBS)
0.06749Btu (thermoc.)
18cal(NBS)
0.07146Btu (thermoc.)
19cal(NBS)
0.07543Btu (thermoc.)
卡路里（15°C，NBS 1939）
Btu（热力学）
20cal(NBS)
0.07940Btu (thermoc.)
21cal(NBS)
0.08337Btu (thermoc.)
22cal(NBS)
0.08734Btu (thermoc.)
23cal(NBS)
0.09131Btu (thermoc.)
24cal(NBS)
0.09528Btu (thermoc.)
25cal(NBS)
0.09925Btu (thermoc.)
26cal(NBS)
0.10322Btu (thermoc.)
27cal(NBS)
0.10719Btu (thermoc.)
28cal(NBS)
0.11116Btu (thermoc.)
29cal(NBS)
0.11513Btu (thermoc.)
30cal(NBS)
0.11910Btu (thermoc.)
31cal(NBS)
0.12307Btu (thermoc.)
32cal(NBS)
0.12704Btu (thermoc.)
33cal(NBS)
0.13101Btu (thermoc.)
34cal(NBS)
0.13498Btu (thermoc.)
35cal(NBS)
0.13895Btu (thermoc.)
36cal(NBS)
0.14292Btu (thermoc.)
37cal(NBS)
0.14689Btu (thermoc.)
38cal(NBS)
0.15086Btu (thermoc.)
39cal(NBS)
0.15483Btu (thermoc.)
卡路里（15°C，NBS 1939）
Btu（热力学）
40cal(NBS)
0.15880Btu (thermoc.)
41cal(NBS)
0.16277Btu (thermoc.)
42cal(NBS)
0.16674Btu (thermoc.)
43cal(NBS)
0.17071Btu (thermoc.)
44cal(NBS)
0.17468Btu (thermoc.)
45cal(NBS)
0.17865Btu (thermoc.)
46cal(NBS)
0.18262Btu (thermoc.)
47cal(NBS)
0.18659Btu (thermoc.)
48cal(NBS)
0.19056Btu (thermoc.)
49cal(NBS)
0.19453Btu (thermoc.)
50cal(NBS)
0.19850Btu (thermoc.)
51cal(NBS)
0.20247Btu (thermoc.)
52cal(NBS)
0.20644Btu (thermoc.)
53cal(NBS)
0.21041Btu (thermoc.)
54cal(NBS)
0.21438Btu (thermoc.)
55cal(NBS)
0.21835Btu (thermoc.)
56cal(NBS)
0.22232Btu (thermoc.)
57cal(NBS)
0.22629Btu (thermoc.)
58cal(NBS)
0.23026Btu (thermoc.)
59cal(NBS)
0.23423Btu (thermoc.)
卡路里（15°C，NBS 1939）
Btu（热力学）
60cal(NBS)
0.23820Btu (thermoc.)
61cal(NBS)
0.24217Btu (thermoc.)
62cal(NBS)
0.24614Btu (thermoc.)
63cal(NBS)
0.25011Btu (thermoc.)
64cal(NBS)
0.25408Btu (thermoc.)
65cal(NBS)
0.25805Btu (thermoc.)
66cal(NBS)
0.26202Btu (thermoc.)
67cal(NBS)
0.26599Btu (thermoc.)
68cal(NBS)
0.26996Btu (thermoc.)
69cal(NBS)
0.27393Btu (thermoc.)
70cal(NBS)
0.27790Btu (thermoc.)
71cal(NBS)
0.28187Btu (thermoc.)
72cal(NBS)
0.28584Btu (thermoc.)
73cal(NBS)
0.28981Btu (thermoc.)
74cal(NBS)
0.29378Btu (thermoc.)
75cal(NBS)
0.29775Btu (thermoc.)
76cal(NBS)
0.30172Btu (thermoc.)
77cal(NBS)
0.30569Btu (thermoc.)
78cal(NBS)
0.30966Btu (thermoc.)
79cal(NBS)
0.31363Btu (thermoc.)