Convert hour square foot Fahrenheit per BTU to square meter kelvin per watt
1 R (h·ft²·°F/BTU) = 0.1761101837 RSI (m²·K/W)
1 R (h·ft²·°F/BTU) = 0.176 RSI (m²·K/W)
1 R (h·ft²·°F/BTU) in every areal thermal resistance unit
| square meter kelvin per watt | 0.176 RSI (m²·K/W) |
| hour square foot Fahrenheit per BTU | 1 R (h·ft²·°F/BTU) |
How the conversion works
Multiply by 0.1761101837 to go from hour square foot Fahrenheit per BTU to square meter kelvin per watt, or divide by it to go back. Every conversion on this site routes through the SI value (m²·K/W) rather than a table of pairwise factors, so a round-trip returns exactly what you started with.
Going the other way? square meter kelvin per watt to hour square foot Fahrenheit per BTU — 1 RSI (m²·K/W) = 5.678263341 R (h·ft²·°F/BTU).
hour square foot Fahrenheit per BTU to square meter kelvin per watt — common values
| 1 R (h·ft²·°F/BTU) | 0.17611018 RSI (m²·K/W) |
| 2 R (h·ft²·°F/BTU) | 0.35222037 RSI (m²·K/W) |
| 3 R (h·ft²·°F/BTU) | 0.52833055 RSI (m²·K/W) |
| 5 R (h·ft²·°F/BTU) | 0.88055092 RSI (m²·K/W) |
| 10 R (h·ft²·°F/BTU) | 1.7611018 RSI (m²·K/W) |
| 15 R (h·ft²·°F/BTU) | 2.6416528 RSI (m²·K/W) |
| 20 R (h·ft²·°F/BTU) | 3.5222037 RSI (m²·K/W) |
| 25 R (h·ft²·°F/BTU) | 4.4027546 RSI (m²·K/W) |
| 50 R (h·ft²·°F/BTU) | 8.8055092 RSI (m²·K/W) |
| 75 R (h·ft²·°F/BTU) | 13.208264 RSI (m²·K/W) |
| 100 R (h·ft²·°F/BTU) | 17.611018 RSI (m²·K/W) |
| 250 R (h·ft²·°F/BTU) | 44.027546 RSI (m²·K/W) |
| 500 R (h·ft²·°F/BTU) | 88.055092 RSI (m²·K/W) |
| 1000 R (h·ft²·°F/BTU) | 176.11018 RSI (m²·K/W) |