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

Thermal Conductivity Converter

7 units available

Decimals:

From

To

0.000578

1 mW/(m·K) = 0.000578 BTU/(h·ft·°F)

Formula:

BTU/(h·ft·°F) = mW/(m·K) × 0.0005777893

With your value: 1 mW/(m·K) = 0.00057779 BTU/(h·ft·°F)

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

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

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

Milliwatt/Meter-Kelvin (mW/(m·K))	BTU/Hour-Foot-°F (BTU/(h·ft·°F))
0.5	0.000289
1	0.000578
2	0.001156
5	0.002889
10	0.005778
15	0.008667
20	0.011556
25	0.014445
50	0.028889
100	0.057779
250	0.144447
500	0.288895
1000	0.577789

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

BTU/Hour-Foot-°F (BTU/(h·ft·°F))	Milliwatt/Meter-Kelvin (mW/(m·K))
0.5	865.367333
1	1,730.734666
2	3,461.469332
5	8,653.67333
10	17,307.34666
15	25,961.01999
20	34,614.69332
25	43,268.36665
50	86,536.7333
100	173,073.4666
250	432,683.6665
500	865,367.333
1000	1,730,734.666

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.

Milliwatt/Meter-Kelvin (mW/(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 Milliwatt/Meter-Kelvin to BTU/Hour-Foot-°F

To convert from Milliwatt/Meter-Kelvin (mW/(m·K)) to BTU/Hour-Foot-°F (BTU/(h·ft·°F)), multiply the value by 0.0005777893.

Formula: BTU/(h·ft·°F) = mW/(m·K) × 0.0005777893

Reverse: mW/(m·K) = BTU/(h·ft·°F) × 1,730.734666

Step-by-Step Example

Start with your value in Milliwatt/Meter-Kelvin. For example: 5 mW/(m·K)
Multiply by the conversion factor: 5 x 0.0005777893
The result is: 0.002889 BTU/(h·ft·°F)

About Milliwatt/Meter-Kelvin

The milliwatt/meter-kelvin (mW/(m·K)) is a unit of thermal conductivity. One milliwatt/meter-kelvin equals 0.001 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.

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 Milliwatt/Meter-Kelvin?

There are exactly 0.0005777893 BTU/Hour-Foot-°F in 1 Milliwatt/Meter-Kelvin. This means the conversion factor from Milliwatt/Meter-Kelvin to BTU/Hour-Foot-°F is 0.0005777893.

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

The formula to convert Milliwatt/Meter-Kelvin to BTU/Hour-Foot-°F is: BTU/(h·ft·°F) = mW/(m·K) × 0.0005777893. For example, to convert 10 Milliwatt/Meter-Kelvin to BTU/Hour-Foot-°F, you would multiply 10 by 0.0005777893.

What is a Milliwatt/Meter-Kelvin?