Convert Watt per Meter Kelvin to IT BTU per Hour Foot Degree Fahrenheit
Live bidirectional calculator for Watts per Meter Kelvin (W/(m·K)) and IT BTUs per Hour Foot Degree Fahrenheit (Btu_IT/(h·ft·°F)) with verified formula and conversion charts.
Thermal Conductivity7 units
How the Calculation Works (Linear Scaling)
Since 1 IT BTU per Hour Foot Degree Fahrenheit = 1.730735 Watts per Meter Kelvin, divide the value in Watts per Meter Kelvin by 1.730735.
Watt per Meter Kelvin to IT BTU per Hour Foot Degree Fahrenheit Conversion Table
Precomputed values for quick reference and printing.
| Watt per Meter Kelvin | IT BTU per Hour Foot Degree Fahrenheit |
|---|---|
| 1 W/(m·K) | 0.5778 Btu_IT/(h·ft·°F) |
| 2 W/(m·K) | 1.1556 Btu_IT/(h·ft·°F) |
| 3 W/(m·K) | 1.7334 Btu_IT/(h·ft·°F) |
| 4 W/(m·K) | 2.3112 Btu_IT/(h·ft·°F) |
| 5 W/(m·K) | 2.8889 Btu_IT/(h·ft·°F) |
| 6 W/(m·K) | 3.4667 Btu_IT/(h·ft·°F) |
| 7 W/(m·K) | 4.0445 Btu_IT/(h·ft·°F) |
| 8 W/(m·K) | 4.6223 Btu_IT/(h·ft·°F) |
| 9 W/(m·K) | 5.2001 Btu_IT/(h·ft·°F) |
| 10 W/(m·K) | 5.7779 Btu_IT/(h·ft·°F) |
| 15 W/(m·K) | 8.6668 Btu_IT/(h·ft·°F) |
| 20 W/(m·K) | 11.5558 Btu_IT/(h·ft·°F) |
| 25 W/(m·K) | 14.4447 Btu_IT/(h·ft·°F) |
| 30 W/(m·K) | 17.3337 Btu_IT/(h·ft·°F) |
| 40 W/(m·K) | 23.1116 Btu_IT/(h·ft·°F) |
| 50 W/(m·K) | 28.8895 Btu_IT/(h·ft·°F) |
| 75 W/(m·K) | 43.3342 Btu_IT/(h·ft·°F) |
| 100 W/(m·K) | 57.7789 Btu_IT/(h·ft·°F) |
| IT BTU per Hour Foot Degree Fahrenheit | Watt per Meter Kelvin |
|---|---|
| 1 Btu_IT/(h·ft·°F) | 1.7307 W/(m·K) |
| 2 Btu_IT/(h·ft·°F) | 3.4615 W/(m·K) |
| 3 Btu_IT/(h·ft·°F) | 5.1922 W/(m·K) |
| 4 Btu_IT/(h·ft·°F) | 6.9229 W/(m·K) |
| 5 Btu_IT/(h·ft·°F) | 8.6537 W/(m·K) |
| 6 Btu_IT/(h·ft·°F) | 10.3844 W/(m·K) |
| 7 Btu_IT/(h·ft·°F) | 12.1151 W/(m·K) |
| 8 Btu_IT/(h·ft·°F) | 13.8459 W/(m·K) |
| 9 Btu_IT/(h·ft·°F) | 15.5766 W/(m·K) |
| 10 Btu_IT/(h·ft·°F) | 17.3073 W/(m·K) |
| 15 Btu_IT/(h·ft·°F) | 25.961 W/(m·K) |
| 20 Btu_IT/(h·ft·°F) | 34.6147 W/(m·K) |
| 25 Btu_IT/(h·ft·°F) | 43.2684 W/(m·K) |
| 30 Btu_IT/(h·ft·°F) | 51.922 W/(m·K) |
| 40 Btu_IT/(h·ft·°F) | 69.2294 W/(m·K) |
| 50 Btu_IT/(h·ft·°F) | 86.5367 W/(m·K) |
| 75 Btu_IT/(h·ft·°F) | 129.8051 W/(m·K) |
| 100 Btu_IT/(h·ft·°F) | 173.0735 W/(m·K) |
About Watt per Meter Kelvin (W/(m·K))
The SI unit of thermal conductivity (k or λ), representing the heat flow rate in watts through 1 square meter of material of 1 meter thickness with a 1 kelvin temperature differential.
History: Codified in Fourier’s law of heat conduction (q = -k ∇T).
Common Uses: Material thermal characterization, building insulation k-value, metals and thermal paste ratings.
About IT BTU per Hour Foot Degree Fahrenheit (Btu_IT/(h·ft·°F))
The standard US customary unit of thermal conductivity, derived from 1 IT BTU, 1 hour, 1 international foot, and 1 °F interval (≈ 1.730735 W/(m·K)).
History: Established by ASHRAE and US engineering standards.
Common Uses: ASHRAE design handbooks, building material k-value listings, US thermal insulation specs.
❓ Frequently Asked Questions
How many IT BTUs per Hour Foot Degree Fahrenheit are in 1 Watt per Meter Kelvin?
There are exactly 0.577789 IT BTUs per Hour Foot Degree Fahrenheit in 1 Watt per Meter Kelvin (1 W/(m·K) = 0.577789 Btu_IT/(h·ft·°F)).
What is the formula to convert Watt per Meter Kelvin to IT BTU per Hour Foot Degree Fahrenheit?
The formula is: IT BTU per Hour Foot Degree Fahrenheit = Watt per Meter Kelvin / 1.730735. Since 1 IT BTU per Hour Foot Degree Fahrenheit = 1.730735 Watts per Meter Kelvin, divide the value in Watts per Meter Kelvin by 1.730735.
How do I convert 1 W/(m·K) to Btu_IT/(h·ft·°F) manually?
To convert 1 W/(m·K) to Btu_IT/(h·ft·°F): apply the formula IT BTU per Hour Foot Degree Fahrenheit = Watt per Meter Kelvin / 1.730735. Substituting gives: 1 / 1.730735 = 0.5778 Btu_IT/(h·ft·°F).