Btu (mean) to Calories (15 °C, NBS 1939)

Metric Conversions.

Calories (15 °C, NBS 1939) to Btu (mean) (Swap units)

1Btu (mean) = 252.25059cal(NBS)

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 (mean) to Calories (15 °C, NBS 1939) conversion formula

Calories (15 °C, NBS 1939) = Btu (mean) * 252.25058759

Btu (mean) to Calories (15 °C, NBS 1939) calculation

Calories (15 °C, NBS 1939) = Btu (mean) * 252.25058759

Calories (15 °C, NBS 1939) = 1 * 252.25058759183

Calories (15 °C, NBS 1939) = 252.25059

Btu (mean)

Btu (mean) is a unit of energy used primarily in the United States defined as the heat required to raise the temperature of one pound of water from 59°F to 60°F under standard atmospheric pressure.

Calories (15 °C, NBS 1939)

The 15 °C NBS 1939 calorie is the amount of energy required to raise the temperature of one gram of water by one degree Celsius, from 14.5 °C to 15.5 °C, at standard atmospheric pressure. This specific definition was established by the National Bureau of Standards (NBS) in 1939.

 

Btu (mean) to Calories (15 °C, NBS 1939) table

Starting value
Increment
Accuracy
Btu (mean)
Calories (15 °C, NBS 1939)
0Btu (mean)
0.00000cal(NBS)
1Btu (mean)
252.25059cal(NBS)
2Btu (mean)
504.50118cal(NBS)
3Btu (mean)
756.75176cal(NBS)
4Btu (mean)
1,009.00235cal(NBS)
5Btu (mean)
1,261.25294cal(NBS)
6Btu (mean)
1,513.50353cal(NBS)
7Btu (mean)
1,765.75411cal(NBS)
8Btu (mean)
2,018.00470cal(NBS)
9Btu (mean)
2,270.25529cal(NBS)
10Btu (mean)
2,522.50588cal(NBS)
11Btu (mean)
2,774.75646cal(NBS)
12Btu (mean)
3,027.00705cal(NBS)
13Btu (mean)
3,279.25764cal(NBS)
14Btu (mean)
3,531.50823cal(NBS)
15Btu (mean)
3,783.75881cal(NBS)
16Btu (mean)
4,036.00940cal(NBS)
17Btu (mean)
4,288.25999cal(NBS)
18Btu (mean)
4,540.51058cal(NBS)
19Btu (mean)
4,792.76116cal(NBS)
20Btu (mean)
5,045.01175cal(NBS)
21Btu (mean)
5,297.26234cal(NBS)
22Btu (mean)
5,549.51293cal(NBS)
23Btu (mean)
5,801.76351cal(NBS)
24Btu (mean)
6,054.01410cal(NBS)
25Btu (mean)
6,306.26469cal(NBS)
26Btu (mean)
6,558.51528cal(NBS)
27Btu (mean)
6,810.76586cal(NBS)
28Btu (mean)
7,063.01645cal(NBS)
29Btu (mean)
7,315.26704cal(NBS)
30Btu (mean)
7,567.51763cal(NBS)
31Btu (mean)
7,819.76822cal(NBS)
32Btu (mean)
8,072.01880cal(NBS)
33Btu (mean)
8,324.26939cal(NBS)
34Btu (mean)
8,576.51998cal(NBS)
35Btu (mean)
8,828.77057cal(NBS)
36Btu (mean)
9,081.02115cal(NBS)
37Btu (mean)
9,333.27174cal(NBS)
38Btu (mean)
9,585.52233cal(NBS)
39Btu (mean)
9,837.77292cal(NBS)
40Btu (mean)
10,090.02350cal(NBS)
41Btu (mean)
10,342.27409cal(NBS)
42Btu (mean)
10,594.52468cal(NBS)
43Btu (mean)
10,846.77527cal(NBS)
44Btu (mean)
11,099.02585cal(NBS)
45Btu (mean)
11,351.27644cal(NBS)
46Btu (mean)
11,603.52703cal(NBS)
47Btu (mean)
11,855.77762cal(NBS)
48Btu (mean)
12,108.02820cal(NBS)
49Btu (mean)
12,360.27879cal(NBS)
50Btu (mean)
12,612.52938cal(NBS)
51Btu (mean)
12,864.77997cal(NBS)
52Btu (mean)
13,117.03055cal(NBS)
53Btu (mean)
13,369.28114cal(NBS)
54Btu (mean)
13,621.53173cal(NBS)
55Btu (mean)
13,873.78232cal(NBS)
56Btu (mean)
14,126.03291cal(NBS)
57Btu (mean)
14,378.28349cal(NBS)
58Btu (mean)
14,630.53408cal(NBS)
59Btu (mean)
14,882.78467cal(NBS)
60Btu (mean)
15,135.03526cal(NBS)
61Btu (mean)
15,387.28584cal(NBS)
62Btu (mean)
15,639.53643cal(NBS)
63Btu (mean)
15,891.78702cal(NBS)
64Btu (mean)
16,144.03761cal(NBS)
65Btu (mean)
16,396.28819cal(NBS)
66Btu (mean)
16,648.53878cal(NBS)
67Btu (mean)
16,900.78937cal(NBS)
68Btu (mean)
17,153.03996cal(NBS)
69Btu (mean)
17,405.29054cal(NBS)
70Btu (mean)
17,657.54113cal(NBS)
71Btu (mean)
17,909.79172cal(NBS)
72Btu (mean)
18,162.04231cal(NBS)
73Btu (mean)
18,414.29289cal(NBS)
74Btu (mean)
18,666.54348cal(NBS)
75Btu (mean)
18,918.79407cal(NBS)
76Btu (mean)
19,171.04466cal(NBS)
77Btu (mean)
19,423.29524cal(NBS)
78Btu (mean)
19,675.54583cal(NBS)
79Btu (mean)
19,927.79642cal(NBS)
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