Thermal Conductivity Converter
Thermal conductivity is a material property describing how easily heat flows through it. The SI unit is the watt per metre-kelvin, W/(m·K). Copper conducts at roughly 400 W/(m·K), while good insulation is around 0.04 W/(m·K) — a difference of about ten thousand times.
1 Watt/Meter-Kelvin = 0.5777893165 BTU/Hour-Foot-Fahrenheit
How to convert Watt/Meter-Kelvin to BTU/Hour-Foot-Fahrenheit
One Watt/Meter-Kelvin equals 0.5777893165 BTU/Hour-Foot-Fahrenheit, so multiply any value in W/(m·K) by 0.5777893165 to get BTU/(h·ft·deg F). To convert back, divide by 0.5777893165 — or multiply by 1.730734666.
BTU/(h·ft·deg F) = W/(m·K) × 0.5777893165
Example: 25 W/(m·K) × 0.5777893165 = 14.44473291 BTU/(h·ft·deg F).
Watt/Meter-Kelvin to BTU/Hour-Foot-Fahrenheit table
| Watt/Meter-Kelvin (W/(m·K)) | BTU/Hour-Foot-Fahrenheit (BTU/(h·ft·deg F)) |
|---|---|
| 1 | 0.5777893165 |
| 2 | 1.155578633 |
| 3 | 1.73336795 |
| 4 | 2.311157266 |
| 5 | 2.888946583 |
| 10 | 5.777893165 |
| 15 | 8.666839748 |
| 20 | 11.55578633 |
| 25 | 14.44473291 |
| 50 | 28.88946583 |
| 75 | 43.33419874 |
| 100 | 57.77893165 |
| 250 | 144.4473291 |
| 500 | 288.8946583 |
| 1,000 | 577.7893165 |
BTU/Hour-Foot-Fahrenheit to Watt/Meter-Kelvin table
| BTU/Hour-Foot-Fahrenheit (BTU/(h·ft·deg F)) | Watt/Meter-Kelvin (W/(m·K)) |
|---|---|
| 1 | 1.730734666 |
| 2 | 3.461469333 |
| 3 | 5.192203999 |
| 4 | 6.922938665 |
| 5 | 8.653673332 |
| 10 | 17.30734666 |
| 15 | 25.96102 |
| 20 | 34.61469333 |
| 25 | 43.26836666 |
| 50 | 86.53673332 |
| 75 | 129.8051 |
| 100 | 173.0734666 |
| 250 | 432.6836666 |
| 500 | 865.3673332 |
| 1,000 | 1,730.734666 |
Thermal Conductivity units at a glance
All 10 units this converter supports, each expressed in Watt/Meter-Kelvin (W/(m·K)) and the other way round.
| Unit | Symbol | 1 unit in W/(m·K) | 1 W/(m·K) in unit |
|---|---|---|---|
| Watt/Meter-Kelvin | W/(m·K) | 1 | 1 |
| Watt/Meter-Celsius | W/(m·deg C) | 1 | 1 |
| Watt/Centimeter-Kelvin | W/(cm·K) | 100 | 0.01 |
| Watt/Centimeter-Celsius | W/(cm·deg C) | 100 | 0.01 |
| Kilowatt/Meter-Kelvin | kW/(m·K) | 1,000 | 0.001 |
| BTU/Hour-Foot-Fahrenheit | BTU/(h·ft·deg F) | 1.730734666 | 0.5777893165 |
| BTU/Hour-Foot-Rankine | BTU/(h·ft·deg R) | 1.730734666 | 0.5777893165 |
| BTU-Inch/Hour-Foot²-Fahrenheit | BTU·in/(h·ft²·deg F) | 0.1442278889 | 6.933471799 |
| Calorie/Second-Centimeter-Celsius | cal/(s·cm·deg C) | 418.4 | 0.002390057361 |
| Kilocalorie/Hour-Meter-Celsius | kcal/(h·m·deg C) | 1.163 | 0.8598452279 |
Where thermal conductivity conversions are used
Building insulation, heat exchanger design, electronics cooling, and materials science.
Frequently asked questions
What is 1 Watt/Meter-Kelvin in BTU/Hour-Foot-Fahrenheit?
1 Watt/Meter-Kelvin (W/(m·K)) is 0.5777893165 BTU/Hour-Foot-Fahrenheit (BTU/(h·ft·deg F)).
What is 1 BTU/Hour-Foot-Fahrenheit in Watt/Meter-Kelvin?
1 BTU/Hour-Foot-Fahrenheit (BTU/(h·ft·deg F)) is 1.730734666 Watt/Meter-Kelvin (W/(m·K)).
How do I convert Watt/Meter-Kelvin to BTU/Hour-Foot-Fahrenheit?
Multiply the value in Watt/Meter-Kelvin by 0.5777893165. For example, 5 W/(m·K) × 0.5777893165 = 2.888946583 BTU/(h·ft·deg F). To go the other way, divide by 0.5777893165.
How many units does the thermal conductivity converter support?
It converts between 10 units: Watt/Meter-Kelvin, Watt/Meter-Celsius, Watt/Centimeter-Kelvin, Watt/Centimeter-Celsius, Kilowatt/Meter-Kelvin, BTU/Hour-Foot-Fahrenheit, BTU/Hour-Foot-Rankine, BTU-Inch/Hour-Foot²-Fahrenheit, Calorie/Second-Centimeter-Celsius, Kilocalorie/Hour-Meter-Celsius.
More Heat & Thermodynamics converters
- Fuel Efficiency (Mass) ConverterFuel efficiency per unit mass conversions
- Fuel Efficiency (Volume) ConverterFuel efficiency per unit volume conversions
- Temperature Interval ConverterTemperature difference and interval conversions
- Thermal Expansion ConverterCoefficient of thermal expansion conversions
- Thermal Resistance ConverterThermal resistance (R-value) conversions
- Specific Heat Capacity ConverterSpecific heat capacity conversions
- Heat Density ConverterHeat density (energy per unit volume) conversions
- Heat Flux Density ConverterHeat flux density (heat flow per area) conversions
- Heat Transfer Coefficient ConverterHeat transfer coefficient (U-value) conversions
Figures on this page are calculated with the same conversion factors as the converter above and shown to up to 10 significant figures. See our disclaimer before relying on a result in a professional or safety-critical context.