Watt/Meter-Kelvin to BTU/Hour-Foot-°F Converter

Thermal Conductivity Converter

7 units available

Decimals:

From

To

0.577789

1 W/(m·K) = 0.577789 BTU/(h·ft·°F)

Formula:

BTU/(h·ft·°F) = W/(m·K) × 0.5777893167

With your value: 1 W/(m·K) = 0.57778932 BTU/(h·ft·°F)

Other Watt/Meter-Kelvin to BTU/Hour-Foot-°F conversions

2 W/(m·K) to BTU/(h·ft·°F)3 W/(m·K) to BTU/(h·ft·°F)4 W/(m·K) to BTU/(h·ft·°F)5 W/(m·K) to BTU/(h·ft·°F)6 W/(m·K) to BTU/(h·ft·°F)7 W/(m·K) to BTU/(h·ft·°F)8 W/(m·K) to BTU/(h·ft·°F)

Watt/Meter-Kelvin to BTU/Hour-Foot-°F Conversion Table

Watt/Meter-Kelvin (W/(m·K))	BTU/Hour-Foot-°F (BTU/(h·ft·°F))
0.5	0.288895
1	0.577789
2	1.155579
5	2.888947
10	5.777893
15	8.66684
20	11.555786
25	14.444733
50	28.889466
100	57.778932
250	144.447329
500	288.894658
1000	577.789317

BTU/Hour-Foot-°F to Watt/Meter-Kelvin Conversion Table

BTU/Hour-Foot-°F (BTU/(h·ft·°F))	Watt/Meter-Kelvin (W/(m·K))
0.5	0.865367
1	1.730735
2	3.461469
5	8.653673
10	17.307347
15	25.96102
20	34.614693
25	43.268367
50	86.536733
100	173.073467
250	432.683667
500	865.367333
1000	1,730.734666

Where these values come from

Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.

Watt/Meter-Kelvin (W/(m·K))

Thermal Conductivity

Exact conversion

Derived quantity, watt per metre-kelvin (W/(m·K)). Imperial and calorie-based units convert exactly via the thermochemical calorie and the international BTU.

Source: NIST Special Publication 811, Guide for the Use of the International System of Units

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

BTU/Hour-Foot-°F (BTU/(h·ft·°F))

Thermal Conductivity

Exact conversion

Derived quantity, watt per metre-kelvin (W/(m·K)). Imperial and calorie-based units convert exactly via the thermochemical calorie and the international BTU.

Source: NIST Special Publication 811, Guide for the Use of the International System of Units

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

How to Convert Watt/Meter-Kelvin to BTU/Hour-Foot-°F

To convert from Watt/Meter-Kelvin (W/(m·K)) to BTU/Hour-Foot-°F (BTU/(h·ft·°F)), multiply the value by 0.5777893167.

Formula: BTU/(h·ft·°F) = W/(m·K) × 0.5777893167

Reverse: W/(m·K) = BTU/(h·ft·°F) × 1.730734666

Step-by-Step Example

Start with your value in Watt/Meter-Kelvin. For example: 5 W/(m·K)
Multiply by the conversion factor: 5 x 0.5777893167
The result is: 2.888947 BTU/(h·ft·°F)

About Watt/Meter-Kelvin

The watt/meter-kelvin (W/(m·K)) is a unit of thermal conductivity. One watt/meter-kelvin equals 1 base unit. UnitConvertLab converts it against every other thermal conductivity unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: thermal conductivity calculations, engineering and science, education.

About BTU/Hour-Foot-°F

The btu/hour-foot-°f (BTU/(h·ft·°F)) is a unit of thermal conductivity. One btu/hour-foot-°f equals 1.730734666 base units. UnitConvertLab converts it against every other thermal conductivity unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: thermal conductivity calculations, engineering and science, education.

Frequently Asked Questions

How many BTU/Hour-Foot-°F are in 1 Watt/Meter-Kelvin?

There are exactly 0.5777893167 BTU/Hour-Foot-°F in 1 Watt/Meter-Kelvin. This means the conversion factor from Watt/Meter-Kelvin to BTU/Hour-Foot-°F is 0.5777893167.

What is the formula to convert Watt/Meter-Kelvin to BTU/Hour-Foot-°F?

The formula to convert Watt/Meter-Kelvin to BTU/Hour-Foot-°F is: BTU/(h·ft·°F) = W/(m·K) × 0.5777893167. For example, to convert 10 Watt/Meter-Kelvin to BTU/Hour-Foot-°F, you would multiply 10 by 0.5777893167.

What is a Watt/Meter-Kelvin?