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R-value (imperial)
Symbol:  °F-ft2-h/Btu (therm.) 
Category:  Thermal resistance coefficient 
SI Equivalent:  0.176228 K-m2/W
Dimension M-1T3Q 
System:  UK, US 
Convert     °F-ft2-h/Btu (therm.)  
1 °F-ft2-h/Btu (therm.) =
Thermal resistance coefficient
  Symbol Unit Name
1.13828  clo  clo 
0.176228  K-m2/W  kelvin meter squared per watt 
0.176228  RSI  RSI (metric R-value) 
1.76228  tog  tog 
Glossary
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Wages, employment opportunities, and growth projections for STEM jobs.

Negotiate Your Salary

Learn the best principles to negotiate the salary you deserve!

Metal 3D Printing Design Guide

Direct Metal Laser Sintering (DMLS) 3D printing for parts with reduced cost and little waste.

Mechanical Engineers Outlook

Guide for those interested in becoming a mechanical engineer. Includes qualifications, pay, and job duties.