Btu (I.T., pre-1956) to Btu (15.8°C, ISO) conversion calculator

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1Btu (I.T., pre-1956) = 1.00051Btu (15.8°C, ISO)

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Note: You can increase or decrease the accuracy of this answer by selecting the number of significant figures required from the options above the result.

Btu (I.T., pre-1956) to Btu (15.8°C, ISO) conversion formula

Btu (I.T., pre-1956) to Btu (15.8°C, ISO) conversion formula

Btu (15.8°C, ISO) = Btu (I.T., pre-1956) * 1.00051209

1 Btu (I.T., pre-1956) to Btu (15.8°C, ISO) calculation

Btu (15.8°C, ISO) = Btu (I.T., pre-1956) * 1.00051209

Btu (15.8°C, ISO) = 1 * 1.0005120910384

Btu (15.8°C, ISO) = 1.00051

Btu (15.8°C, ISO) to Btu (I.T., pre-1956) (Swap units)

Btu (I.T., pre-1956)

The Btu (I.T., pre-1956) refers to the International Table Btu, a specific definition used before 1956. It represents the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit at a constant pressure of one atmosphere.

Btu (15.8°C, ISO)

The British Thermal Unit (Btu) is a traditional unit of heat, defined as the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit. The Btu (15.8°C, ISO) is a specific variant standardized by the International Organization for Standardization (ISO) based on the calorie defined at 15.8°C.

 

 

Btu (I.T., pre-1956) to Btu (15.8°C, ISO) table

Starting value
Increment
Accuracy
Btu (I.T., pre-1956)
Btu (15.8°C, ISO)
0Btu (I.T., pre-1956)
0.00000Btu (15.8°C, ISO)
1Btu (I.T., pre-1956)
1.00051Btu (15.8°C, ISO)
2Btu (I.T., pre-1956)
2.00102Btu (15.8°C, ISO)
3Btu (I.T., pre-1956)
3.00154Btu (15.8°C, ISO)
4Btu (I.T., pre-1956)
4.00205Btu (15.8°C, ISO)
5Btu (I.T., pre-1956)
5.00256Btu (15.8°C, ISO)
6Btu (I.T., pre-1956)
6.00307Btu (15.8°C, ISO)
7Btu (I.T., pre-1956)
7.00358Btu (15.8°C, ISO)
8Btu (I.T., pre-1956)
8.00410Btu (15.8°C, ISO)
9Btu (I.T., pre-1956)
9.00461Btu (15.8°C, ISO)
10Btu (I.T., pre-1956)
10.00512Btu (15.8°C, ISO)
11Btu (I.T., pre-1956)
11.00563Btu (15.8°C, ISO)
12Btu (I.T., pre-1956)
12.00615Btu (15.8°C, ISO)
13Btu (I.T., pre-1956)
13.00666Btu (15.8°C, ISO)
14Btu (I.T., pre-1956)
14.00717Btu (15.8°C, ISO)
15Btu (I.T., pre-1956)
15.00768Btu (15.8°C, ISO)
16Btu (I.T., pre-1956)
16.00819Btu (15.8°C, ISO)
17Btu (I.T., pre-1956)
17.00871Btu (15.8°C, ISO)
18Btu (I.T., pre-1956)
18.00922Btu (15.8°C, ISO)
19Btu (I.T., pre-1956)
19.00973Btu (15.8°C, ISO)
Btu (I.T., pre-1956)
Btu (15.8°C, ISO)
20Btu (I.T., pre-1956)
20.01024Btu (15.8°C, ISO)
21Btu (I.T., pre-1956)
21.01075Btu (15.8°C, ISO)
22Btu (I.T., pre-1956)
22.01127Btu (15.8°C, ISO)
23Btu (I.T., pre-1956)
23.01178Btu (15.8°C, ISO)
24Btu (I.T., pre-1956)
24.01229Btu (15.8°C, ISO)
25Btu (I.T., pre-1956)
25.01280Btu (15.8°C, ISO)
26Btu (I.T., pre-1956)
26.01331Btu (15.8°C, ISO)
27Btu (I.T., pre-1956)
27.01383Btu (15.8°C, ISO)
28Btu (I.T., pre-1956)
28.01434Btu (15.8°C, ISO)
29Btu (I.T., pre-1956)
29.01485Btu (15.8°C, ISO)
30Btu (I.T., pre-1956)
30.01536Btu (15.8°C, ISO)
31Btu (I.T., pre-1956)
31.01587Btu (15.8°C, ISO)
32Btu (I.T., pre-1956)
32.01639Btu (15.8°C, ISO)
33Btu (I.T., pre-1956)
33.01690Btu (15.8°C, ISO)
34Btu (I.T., pre-1956)
34.01741Btu (15.8°C, ISO)
35Btu (I.T., pre-1956)
35.01792Btu (15.8°C, ISO)
36Btu (I.T., pre-1956)
36.01844Btu (15.8°C, ISO)
37Btu (I.T., pre-1956)
37.01895Btu (15.8°C, ISO)
38Btu (I.T., pre-1956)
38.01946Btu (15.8°C, ISO)
39Btu (I.T., pre-1956)
39.01997Btu (15.8°C, ISO)
Btu (I.T., pre-1956)
Btu (15.8°C, ISO)
40Btu (I.T., pre-1956)
40.02048Btu (15.8°C, ISO)
41Btu (I.T., pre-1956)
41.02100Btu (15.8°C, ISO)
42Btu (I.T., pre-1956)
42.02151Btu (15.8°C, ISO)
43Btu (I.T., pre-1956)
43.02202Btu (15.8°C, ISO)
44Btu (I.T., pre-1956)
44.02253Btu (15.8°C, ISO)
45Btu (I.T., pre-1956)
45.02304Btu (15.8°C, ISO)
46Btu (I.T., pre-1956)
46.02356Btu (15.8°C, ISO)
47Btu (I.T., pre-1956)
47.02407Btu (15.8°C, ISO)
48Btu (I.T., pre-1956)
48.02458Btu (15.8°C, ISO)
49Btu (I.T., pre-1956)
49.02509Btu (15.8°C, ISO)
50Btu (I.T., pre-1956)
50.02560Btu (15.8°C, ISO)
51Btu (I.T., pre-1956)
51.02612Btu (15.8°C, ISO)
52Btu (I.T., pre-1956)
52.02663Btu (15.8°C, ISO)
53Btu (I.T., pre-1956)
53.02714Btu (15.8°C, ISO)
54Btu (I.T., pre-1956)
54.02765Btu (15.8°C, ISO)
55Btu (I.T., pre-1956)
55.02817Btu (15.8°C, ISO)
56Btu (I.T., pre-1956)
56.02868Btu (15.8°C, ISO)
57Btu (I.T., pre-1956)
57.02919Btu (15.8°C, ISO)
58Btu (I.T., pre-1956)
58.02970Btu (15.8°C, ISO)
59Btu (I.T., pre-1956)
59.03021Btu (15.8°C, ISO)
Btu (I.T., pre-1956)
Btu (15.8°C, ISO)
60Btu (I.T., pre-1956)
60.03073Btu (15.8°C, ISO)
61Btu (I.T., pre-1956)
61.03124Btu (15.8°C, ISO)
62Btu (I.T., pre-1956)
62.03175Btu (15.8°C, ISO)
63Btu (I.T., pre-1956)
63.03226Btu (15.8°C, ISO)
64Btu (I.T., pre-1956)
64.03277Btu (15.8°C, ISO)
65Btu (I.T., pre-1956)
65.03329Btu (15.8°C, ISO)
66Btu (I.T., pre-1956)
66.03380Btu (15.8°C, ISO)
67Btu (I.T., pre-1956)
67.03431Btu (15.8°C, ISO)
68Btu (I.T., pre-1956)
68.03482Btu (15.8°C, ISO)
69Btu (I.T., pre-1956)
69.03533Btu (15.8°C, ISO)
70Btu (I.T., pre-1956)
70.03585Btu (15.8°C, ISO)
71Btu (I.T., pre-1956)
71.03636Btu (15.8°C, ISO)
72Btu (I.T., pre-1956)
72.03687Btu (15.8°C, ISO)
73Btu (I.T., pre-1956)
73.03738Btu (15.8°C, ISO)
74Btu (I.T., pre-1956)
74.03789Btu (15.8°C, ISO)
75Btu (I.T., pre-1956)
75.03841Btu (15.8°C, ISO)
76Btu (I.T., pre-1956)
76.03892Btu (15.8°C, ISO)
77Btu (I.T., pre-1956)
77.03943Btu (15.8°C, ISO)
78Btu (I.T., pre-1956)
78.03994Btu (15.8°C, ISO)
79Btu (I.T., pre-1956)
79.04046Btu (15.8°C, ISO)