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

Thermal Conductivity Converter

7 units available

Decimals:

From

To

6.933472

1 W/(m·K) = 6.933472 BTU·in/(h·ft²·°F)

Formula:

BTU·in/(h·ft²·°F) = W/(m·K) × 6.9334717968

With your value: 1 W/(m·K) = 6.9334718 BTU·in/(h·ft²·°F)

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

2 W/(m·K) to BTU·in/(h·ft²·°F)3 W/(m·K) to BTU·in/(h·ft²·°F)4 W/(m·K) to BTU·in/(h·ft²·°F)5 W/(m·K) to BTU·in/(h·ft²·°F)6 W/(m·K) to BTU·in/(h·ft²·°F)7 W/(m·K) to BTU·in/(h·ft²·°F)8 W/(m·K) to BTU·in/(h·ft²·°F)

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

Watt/Meter-Kelvin (W/(m·K))	BTU-Inch/Hour-sq Foot-°F (BTU·in/(h·ft²·°F))
0.5	3.466736
1	6.933472
2	13.866944
5	34.667359
10	69.334718
15	104.002077
20	138.669436
25	173.336795
50	346.67359
100	693.34718
250	1,733.367949
500	3,466.735898
1000	6,933.471797

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

BTU-Inch/Hour-sq Foot-°F (BTU·in/(h·ft²·°F))	Watt/Meter-Kelvin (W/(m·K))
0.5	0.072114
1	0.144228
2	0.288456
5	0.721139
10	1.442279
15	2.163418
20	2.884558
25	3.605697
50	7.211394
100	14.422789
250	36.056972
500	72.113944
1000	144.227889

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-Inch/Hour-sq Foot-°F (BTU·in/(h·ft²·°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-Inch/Hour-sq Foot-°F

To convert from Watt/Meter-Kelvin (W/(m·K)) to BTU-Inch/Hour-sq Foot-°F (BTU·in/(h·ft²·°F)), multiply the value by 6.9334717968.

Formula: BTU·in/(h·ft²·°F) = W/(m·K) × 6.9334717968

Reverse: W/(m·K) = BTU·in/(h·ft²·°F) × 0.1442278889

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 6.9334717968
The result is: 34.667359 BTU·in/(h·ft²·°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-Inch/Hour-sq Foot-°F

The btu-inch/hour-sq foot-°f (BTU·in/(h·ft²·°F)) is a unit of thermal conductivity. One btu-inch/hour-sq foot-°f equals 0.1442278889 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-Inch/Hour-sq Foot-°F are in 1 Watt/Meter-Kelvin?

There are exactly 6.9334717968 BTU-Inch/Hour-sq Foot-°F in 1 Watt/Meter-Kelvin. This means the conversion factor from Watt/Meter-Kelvin to BTU-Inch/Hour-sq Foot-°F is 6.9334717968.

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

The formula to convert Watt/Meter-Kelvin to BTU-Inch/Hour-sq Foot-°F is: BTU·in/(h·ft²·°F) = W/(m·K) × 6.9334717968. For example, to convert 10 Watt/Meter-Kelvin to BTU-Inch/Hour-sq Foot-°F, you would multiply 10 by 6.9334717968.

What is a Watt/Meter-Kelvin?