Thermal Conductivity Converter
Convert between 7 thermal conductivity units instantly. Enter a value, pick your units and get the result with the formula, a full conversion table and worked examples.
1 BTU/(h·ft·°F) in all thermal conductivity units
Updates live as you type. Click a row to set it as the target unit.
| Unit | Symbol | Value |
|---|---|---|
| BTU inch per hour sq foot °F | BTU·in/(h·ft²·°F) | 12 |
| Watt per metre kelvin | W/(m·K) | 1.73073 |
| Kilocalorie per hour metre °C | kcal/(h·m·°C) | 1.48816 |
| BTU per hour foot °F | BTU/(h·ft·°F) | 1 |
| Watt per centimetre kelvin | W/(cm·K) | 0.0173073 |
| Calorie per second centimetre °C | cal/(s·cm·°C) | 0.00413379 |
| Kilowatt per metre kelvin | kW/(m·K) | 0.00173073 |
How to Convert Thermal Conductivity Units
Thermal conductivity is a material's ability to conduct heat. The SI unit is watt per metre kelvin (W/(m·K)); insulation data in imperial units uses BTU per hour foot °F.
Every unit on this page is stored as a fixed factor relative to one reference unit, the watt per metre kelvin (W/(m·K)). Converting is a two step multiply and divide:
- Multiply your value by the factor of the source unit to get the value in W/(m·K).
- Divide that result by the factor of the target unit.
BTU per hour foot °F to Watt per metre kelvin conversion table
| BTU per hour foot °F (BTU/(h·ft·°F)) | Watt per metre kelvin (W/(m·K)) |
|---|---|
| 1 BTU/(h·ft·°F) | 1.73073 W/(m·K) |
| 2 BTU/(h·ft·°F) | 3.46147 W/(m·K) |
| 3 BTU/(h·ft·°F) | 5.1922 W/(m·K) |
| 4 BTU/(h·ft·°F) | 6.92294 W/(m·K) |
| 5 BTU/(h·ft·°F) | 8.65367 W/(m·K) |
| 6 BTU/(h·ft·°F) | 10.3844 W/(m·K) |
| 7 BTU/(h·ft·°F) | 12.1151 W/(m·K) |
| 8 BTU/(h·ft·°F) | 13.8459 W/(m·K) |
| 9 BTU/(h·ft·°F) | 15.5766 W/(m·K) |
| 10 BTU/(h·ft·°F) | 17.3073 W/(m·K) |
| 15 BTU/(h·ft·°F) | 25.961 W/(m·K) |
| 20 BTU/(h·ft·°F) | 34.6147 W/(m·K) |
| 25 BTU/(h·ft·°F) | 43.2684 W/(m·K) |
| 30 BTU/(h·ft·°F) | 51.922 W/(m·K) |
| 40 BTU/(h·ft·°F) | 69.2294 W/(m·K) |
| 50 BTU/(h·ft·°F) | 86.5367 W/(m·K) |
| 75 BTU/(h·ft·°F) | 129.805 W/(m·K) |
| 100 BTU/(h·ft·°F) | 173.073 W/(m·K) |
| 250 BTU/(h·ft·°F) | 432.684 W/(m·K) |
| 500 BTU/(h·ft·°F) | 865.367 W/(m·K) |
| 1,000 BTU/(h·ft·°F) | 1,730.73 W/(m·K) |
Thermal Conductivity Units and Conversion Factors
Value of one unit expressed in W/(m·K).
| Unit | Symbol | In W/(m·K) |
|---|---|---|
| BTU inch per hour sq foot °F | BTU·in/(h·ft²·°F) | 0.1442278889 |
| Watt per metre kelvin | W/(m·K) | 1 |
| Kilocalorie per hour metre °C | kcal/(h·m·°C) | 1.163 |
| BTU per hour foot °F | BTU/(h·ft·°F) | 1.730734666 |
| Watt per centimetre kelvin | W/(cm·K) | 100 |
| Calorie per second centimetre °C | cal/(s·cm·°C) | 418.68 |
| Kilowatt per metre kelvin | kW/(m·K) | 1,000 |
Frequently Asked Questions
What is the SI unit of thermal conductivity?
The SI unit of thermal conductivity is the watt per metre kelvin (W/(m·K)). Thermal conductivity is a material's ability to conduct heat.
How do I convert W/(m·K) to BTU/(h·ft·°F)?
To convert watt per metre kelvin (W/(m·K)) to btu per hour foot °f (BTU/(h·ft·°F)), multiply the value in W/(m·K) by 0.577789. For example, 1 W/(m·K) = 0.577789 BTU/(h·ft·°F).
How do I convert BTU/(h·ft·°F) to W/(m·K)?
To convert btu per hour foot °f (BTU/(h·ft·°F)) to watt per metre kelvin (W/(m·K)), multiply the value in BTU/(h·ft·°F) by 1.73073. For example, 1 BTU/(h·ft·°F) = 1.73073 W/(m·K).
How do I convert kcal/(h·m·°C) to W/(m·K)?
To convert kilocalorie per hour metre °c (kcal/(h·m·°C)) to watt per metre kelvin (W/(m·K)), multiply the value in kcal/(h·m·°C) by 1.163. For example, 1 kcal/(h·m·°C) = 1.163 W/(m·K).
Can I see a value in every thermal conductivity unit at once?
Yes. Enter a value and choose the source unit; the "all units" table below the converter instantly lists the equivalent in all 7 supported units. Click any row to make it the target unit.
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