BTU per hour-foot-°F to watts per meter-kelvin
Type a value in BTU/(h·ft·°F) to get it in W/(m·K) instantly.
That's 1.02× as conductive as concrete, while steel is 29× higher. Through a 10 cm slab with 20 °C across it, that carries about 346.1 W per square meter.
Convert the other way: W/(m·K) to BTU/(h·ft·°F)
What it means
How fast does heat cross?
Values are at room temperature. Conductivity changes with temperature, moisture and, for insulation, with age.
The math
How to convert BTU/(h·ft·°F) to W/(m·K)
To convert BTU per hour-foot-°F to watts per meter-kelvin, multiply by 1.73073.
Example: 1 BTU/(h·ft·°F) × 1.73073 = 1.73073 W/(m·K).
In the other direction, 1 W/(m·K) = 0.577789 BTU/(h·ft·°F).
Every unit
Your conductivity in every unit
Tables
BTU/(h·ft·°F) to W/(m·K) conversion table
| BTU/(h·ft·°F) | W/(m·K) |
|---|---|
| 0.02 BTU/(h·ft·°F) | 0.0346147 W/(m·K) |
| 0.05 BTU/(h·ft·°F) | 0.0865367 W/(m·K) |
| 0.1 BTU/(h·ft·°F) | 0.173073 W/(m·K) |
| 0.2 BTU/(h·ft·°F) | 0.346147 W/(m·K) |
| 0.5 BTU/(h·ft·°F) | 0.865367 W/(m·K) |
| 1 BTU/(h·ft·°F) | 1.73073 W/(m·K) |
| 2 BTU/(h·ft·°F) | 3.46147 W/(m·K) |
| 5 BTU/(h·ft·°F) | 8.65367 W/(m·K) |
| 10 BTU/(h·ft·°F) | 17.3073 W/(m·K) |
| 50 BTU/(h·ft·°F) | 86.5367 W/(m·K) |
| 100 BTU/(h·ft·°F) | 173.073 W/(m·K) |
| 200 BTU/(h·ft·°F) | 346.147 W/(m·K) |
| 400 BTU/(h·ft·°F) | 692.294 W/(m·K) |
W/(m·K) to BTU/(h·ft·°F) conversion table
| W/(m·K) | BTU/(h·ft·°F) |
|---|---|
| 0.02 W/(m·K) | 0.0115558 BTU/(h·ft·°F) |
| 0.05 W/(m·K) | 0.0288895 BTU/(h·ft·°F) |
| 0.1 W/(m·K) | 0.0577789 BTU/(h·ft·°F) |
| 0.2 W/(m·K) | 0.115558 BTU/(h·ft·°F) |
| 0.5 W/(m·K) | 0.288895 BTU/(h·ft·°F) |
| 1 W/(m·K) | 0.577789 BTU/(h·ft·°F) |
| 2 W/(m·K) | 1.15558 BTU/(h·ft·°F) |
| 5 W/(m·K) | 2.88895 BTU/(h·ft·°F) |
| 10 W/(m·K) | 5.77789 BTU/(h·ft·°F) |
| 50 W/(m·K) | 28.8895 BTU/(h·ft·°F) |
| 100 W/(m·K) | 57.7789 BTU/(h·ft·°F) |
| 200 W/(m·K) | 115.558 BTU/(h·ft·°F) |
| 400 W/(m·K) | 231.116 BTU/(h·ft·°F) |
Quick answers
Quick answers
- How many W/(m·K) is 1 BTU/(h·ft·°F)?
- 1 BTU/(h·ft·°F) is 1.73073 W/(m·K).
- How many W/(m·K) is 10 BTU/(h·ft·°F)?
- 10 BTU/(h·ft·°F) is 17.3073 W/(m·K).
The units
About these units
BTU per hour-foot-°F (BTU/(h·ft·°F))
The US engineering unit, about 1.73 W/m·K.
Watts per meter-kelvin (W/(m·K))
The SI unit of thermal conductivity, used everywhere outside US construction.
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