eFunda: Convert RSI (metric R-value) to other Thermal resistance coefficient units

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RSI (metric R-value)

Symbol:	RSI
Category:	Thermal resistance coefficient
SI Equivalent:	1 K-m²/W
Dimension:	M^-1T³Q
System:	UK, US

Notes
Typically used in the British building industry, one RSI corresponds to the heat insulation capability of a wall which maintains a temperature difference of 1°C while passing a heat flux of 1 W/m².

1 RSI =

Thermal resistance coefficient
	Symbol	Unit Name
6.4591	clo	clo
1	K-m²/W	kelvin meter squared per watt
5.67446	°F-ft²-h/Btu (therm.)	R-value (imperial)
10	tog	tog

Glossary