Watts per square meter-kelvin to BTU per hour-ft²-°F
Type a value in W/(m²·K) to get it in BTU/(h·ft²·°F) instantly.
4.403BTU/(h·ft²·°F)
That's about the same as moving air. With 10 °C across it, that moves about 250 W per square meter.
Convert the other way: BTU/(h·ft²·°F) to W/(m²·K)
What it means
How fast does heat leave?
Values depend strongly on flow speed, surface shape and whether the fluid changes phase.
The math
How to convert W/(m²·K) to BTU/(h·ft²·°F)
To convert watts per square meter-kelvin to BTU per hour-ft²-°F, multiply by 0.17611.
Example: 25 W/(m²·K) × 0.17611 = 4.40275 BTU/(h·ft²·°F).
In the other direction, 1 BTU/(h·ft²·°F) = 5.67826 W/(m²·K).
Every unit
Your coefficient in every unit
Tables
W/(m²·K) to BTU/(h·ft²·°F) conversion table
| W/(m²·K) | BTU/(h·ft²·°F) |
|---|---|
| 1 W/(m²·K) | 0.17611 BTU/(h·ft²·°F) |
| 5 W/(m²·K) | 0.880551 BTU/(h·ft²·°F) |
| 10 W/(m²·K) | 1.7611 BTU/(h·ft²·°F) |
| 25 W/(m²·K) | 4.40275 BTU/(h·ft²·°F) |
| 50 W/(m²·K) | 8.80551 BTU/(h·ft²·°F) |
| 100 W/(m²·K) | 17.611 BTU/(h·ft²·°F) |
| 250 W/(m²·K) | 44.0275 BTU/(h·ft²·°F) |
| 500 W/(m²·K) | 88.0551 BTU/(h·ft²·°F) |
| 1,000 W/(m²·K) | 176.11 BTU/(h·ft²·°F) |
| 2,500 W/(m²·K) | 440.275 BTU/(h·ft²·°F) |
| 5,000 W/(m²·K) | 880.551 BTU/(h·ft²·°F) |
| 10,000 W/(m²·K) | 1,761.1 BTU/(h·ft²·°F) |
BTU/(h·ft²·°F) to W/(m²·K) conversion table
| BTU/(h·ft²·°F) | W/(m²·K) |
|---|---|
| 1 BTU/(h·ft²·°F) | 5.67826 W/(m²·K) |
| 5 BTU/(h·ft²·°F) | 28.3913 W/(m²·K) |
| 10 BTU/(h·ft²·°F) | 56.7826 W/(m²·K) |
| 25 BTU/(h·ft²·°F) | 141.957 W/(m²·K) |
| 50 BTU/(h·ft²·°F) | 283.913 W/(m²·K) |
| 100 BTU/(h·ft²·°F) | 567.826 W/(m²·K) |
| 250 BTU/(h·ft²·°F) | 1,419.57 W/(m²·K) |
| 500 BTU/(h·ft²·°F) | 2,839.13 W/(m²·K) |
| 1,000 BTU/(h·ft²·°F) | 5,678.26 W/(m²·K) |
| 2,500 BTU/(h·ft²·°F) | 14,195.7 W/(m²·K) |
| 5,000 BTU/(h·ft²·°F) | 28,391.3 W/(m²·K) |
| 10,000 BTU/(h·ft²·°F) | 56,782.6 W/(m²·K) |
Quick answers
Quick answers
- How many BTU/(h·ft²·°F) is 1 W/(m²·K)?
- 1 W/(m²·K) is 0.17611 BTU/(h·ft²·°F).
- How many BTU/(h·ft²·°F) is 10 W/(m²·K)?
- 10 W/(m²·K) is 1.7611 BTU/(h·ft²·°F).
- How many BTU/(h·ft²·°F) is 25 W/(m²·K)?
- 25 W/(m²·K) is 4.40275 BTU/(h·ft²·°F).
The units
About these units
Watts per square meter-kelvin (W/(m²·K))
The SI unit for surface heat transfer.
BTU per hour-ft²-°F (BTU/(h·ft²·°F))
The US engineering form, about 5.68 W/m²·K.
Keep going