Convert Square Meter Kelvins per Watt (RSI) to R-values (US)
1 square meter kelvin per watt (rsi) = 5.6782633 r-values (us). Multiply the number of square meter kelvins per watt (rsi) by 5.67826334111.
1 m²·K/W = 5.678263341 ft²·°F·h/BTU
Multiply the number of square meter kelvins per watt (rsi) by 5.67826334111.
Results are rounded for display. Double-check values for critical work.
Popular thermal resistance (r-value) conversions
Square Meter Kelvins per Watt (RSI) to R-values (US) table
| Square Meter Kelvins per Watt (RSI) | R-values (US) |
|---|---|
| 1 m²·K/W | 5.6782633 ft²·°F·h/BTU |
| 2 m²·K/W | 11.356527 ft²·°F·h/BTU |
| 3 m²·K/W | 17.03479 ft²·°F·h/BTU |
| 4 m²·K/W | 22.713053 ft²·°F·h/BTU |
| 5 m²·K/W | 28.391317 ft²·°F·h/BTU |
| 10 m²·K/W | 56.782633 ft²·°F·h/BTU |
| 20 m²·K/W | 113.56527 ft²·°F·h/BTU |
| 25 m²·K/W | 141.95658 ft²·°F·h/BTU |
| 50 m²·K/W | 283.91317 ft²·°F·h/BTU |
| 100 m²·K/W | 567.82633 ft²·°F·h/BTU |
| 500 m²·K/W | 2,839.1317 ft²·°F·h/BTU |
| 1000 m²·K/W | 5,678.2633 ft²·°F·h/BTU |
Square Meter Kelvins per Watt (RSI) to R-values (US) in your head
Multiply by 17, then divide by 3.
That lands within 0.2% of the exact value.
10 m²·K/W → 56.6667 ft²·°F·h/BTU in your head, 56.7826 ft²·°F·h/BTU exactly.
About these units
The square meter kelvin per watt (rsi) (m²·K/W) is an SI base or derived unit of thermal resistance.
The r-value (us) (ft²·°F·h/BTU) is a US customary unit of thermal resistance, equal to 0.17611018 square meter kelvins per watt (rsi).
Going the other way, 1 r-value (us) = 0.17611018 square meter kelvins per watt (rsi). Thermal insulance, better known as the R-value, measures how well a layer resists heat flow. It is the reciprocal of the U-value. US building products are labelled in ft²·°F·h/BTU, the rest of the world uses m²·K/W (RSI), duvets are sold by tog and clothing is rated in clo. Higher numbers insulate better.
Frequently asked
- How many r-values (us) are in a square meter kelvin per watt (rsi)?
- 1 square meter kelvin per watt (rsi) = 5.6782633 r-values (us).
- How do you convert square meter kelvins per watt (rsi) to r-values (us)?
- Multiply the number of square meter kelvins per watt (rsi) by 5.67826334111.
- What is 10 m²·K/W in ft²·°F·h/BTU?
- 10 m²·K/W = 56.782633 ft²·°F·h/BTU.