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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
Mechanical Engineers Outlook

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

STEM Career Outlook

Wages, employment opportunities, and growth projections for STEM jobs.

3D Scanners

A white paper to assist in the evaluation of 3D scanning hardware solutions.

Metal 3D Printing Design Guide

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