Heat Transfer Coefficient

BTU/ to Watts per Square Meter Kelvin Converter

Convert BTU/ (BTU/(h⋅ft²⋅°F)) to watts per square meter kelvin (W/(m²⋅K)). 1 BTU per hour square foot °F = 5.678263341 watts per square meter kelvin (exact)

1 BTU per hour square foot °F = 5.67826334111 watts per square meter kelvin

How to convert BTU/ to watts per square meter kelvin

FormulaW/(m²⋅K) = BTU/(h⋅ft²⋅°F) × 5.678263341

Multiply the value in BTU/ by 5.678263341. To go the other way, multiply by 0.1761101837 (or divide by 5.678263341).

A BTU per hour square foot °F is larger than a watt per square meter kelvin: one BTU per hour square foot °F contains 5.678263341 watts per square meter kelvin.

Worked examples

  • 1 BTU per hour square foot °F1 BTU/(h⋅ft²⋅°F) × 5.678263341 = 5.678263341 W/(m²⋅K)
  • 5 BTU/(h·ft²·°F)5 BTU/(h⋅ft²⋅°F) × 5.678263341 = 28.39131671 W/(m²⋅K)
  • 10 BTU/(h·ft²·°F)10 BTU/(h⋅ft²⋅°F) × 5.678263341 = 56.78263341 W/(m²⋅K)
  • 20 BTU/(h·ft²·°F)20 BTU/(h⋅ft²⋅°F) × 5.678263341 = 113.5652668 W/(m²⋅K)
  • 100 BTU/(h·ft²·°F)100 BTU/(h⋅ft²⋅°F) × 5.678263341 = 567.8263341 W/(m²⋅K)

BTU/ to watts per square meter kelvin conversion table

Values are calculated by the conversion engine and rounded to 8 significant figures.

BTU/ to watts per square meter kelvin: 0.1–10 BTU/(h⋅ft²⋅°F)
BTU/ (BTU/(h⋅ft²⋅°F))Watts per square meter kelvin (W/(m²⋅K))
0.1 BTU/(h⋅ft²⋅°F)0.56782633 W/(m²⋅K)
0.25 BTU/(h⋅ft²⋅°F)1.4195658 W/(m²⋅K)
0.5 BTU/(h⋅ft²⋅°F)2.8391317 W/(m²⋅K)
1 BTU/(h⋅ft²⋅°F)5.6782633 W/(m²⋅K)
2 BTU/(h⋅ft²⋅°F)11.356527 W/(m²⋅K)
3 BTU/(h⋅ft²⋅°F)17.03479 W/(m²⋅K)
4 BTU/(h⋅ft²⋅°F)22.713053 W/(m²⋅K)
5 BTU/(h⋅ft²⋅°F)28.391317 W/(m²⋅K)
6 BTU/(h⋅ft²⋅°F)34.06958 W/(m²⋅K)
7 BTU/(h⋅ft²⋅°F)39.747843 W/(m²⋅K)
8 BTU/(h⋅ft²⋅°F)45.426107 W/(m²⋅K)
9 BTU/(h⋅ft²⋅°F)51.10437 W/(m²⋅K)
10 BTU/(h⋅ft²⋅°F)56.782633 W/(m²⋅K)
BTU/ to watts per square meter kelvin: 12–1,000 BTU/(h⋅ft²⋅°F)
BTU/ (BTU/(h⋅ft²⋅°F))Watts per square meter kelvin (W/(m²⋅K))
12 BTU/(h⋅ft²⋅°F)68.13916 W/(m²⋅K)
15 BTU/(h⋅ft²⋅°F)85.17395 W/(m²⋅K)
20 BTU/(h⋅ft²⋅°F)113.56527 W/(m²⋅K)
25 BTU/(h⋅ft²⋅°F)141.95658 W/(m²⋅K)
30 BTU/(h⋅ft²⋅°F)170.3479 W/(m²⋅K)
40 BTU/(h⋅ft²⋅°F)227.13053 W/(m²⋅K)
50 BTU/(h⋅ft²⋅°F)283.91317 W/(m²⋅K)
75 BTU/(h⋅ft²⋅°F)425.86975 W/(m²⋅K)
100 BTU/(h⋅ft²⋅°F)567.82633 W/(m²⋅K)
250 BTU/(h⋅ft²⋅°F)1,419.5658 W/(m²⋅K)
500 BTU/(h⋅ft²⋅°F)2,839.1317 W/(m²⋅K)
1,000 BTU/(h⋅ft²⋅°F)5,678.2633 W/(m²⋅K)

About the units

BTU per hour square foot °F (BTU/(h⋅ft²⋅°F))

The BTU per hour square foot °F (BTU/(h⋅ft²⋅°F)) is a unit of heat transfer coefficient in the US customary system. One BTU per hour square foot °F equals 5.678263341 watts per square meter kelvin (W/(m²⋅K)).

Watt per square meter kelvin (W/(m²⋅K))

The watt per square meter kelvin (W/(m²⋅K)) is a unit of heat transfer coefficient in the International System of Units (SI).

Frequently asked questions

How many watts per square meter kelvin are in one BTU per hour square foot °F?

There are 5.678263341 watts per square meter kelvin in one BTU per hour square foot °F, and this value is exact by definition.

How do I convert BTU/ to watts per square meter kelvin?

Multiply the number of BTU/ by 5.678263341. For example, 10 BTU/(h⋅ft²⋅°F) × 5.678263341 = 56.78263341 W/(m²⋅K).

How many BTU/ are in one watt per square meter kelvin?

One watt per square meter kelvin equals 0.1761101837 BTU/. That is the reverse factor, 1 ÷ 5.678263341.

What is 10 BTU/(h·ft²·°F) in watts per square meter kelvin?

10 BTU/(h⋅ft²⋅°F) = 56.78263341 W/(m²⋅K).

Is this BTU/(h⋅ft²⋅°F) to W/(m²⋅K) converter accurate?

Yes. Both units are defined exactly in terms of SI units, so the conversion factor is exact; results are shown to 12 significant figures by default and you can change precision in the converter. Calculations run in your browser using the same tested engine that generated this page.

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