Units Currencies
Constants
Units Home
Unit Conversion
List Units
List Categories
Currencies
SI System
Base Units
Derived Units
Prefixes
Numbers
Constants
Base-N
Fractions
Time / Decimal
Resources
Bibliography
CNC Machining Design Guide

Optimize your designs, reduce machining time, and lower your costs.

Power Transmission

Gear drives, bearings, motors, clutches, couplings, machine controls, sensors and components.

Quality Magazine

Techniques to improve quality on the shop floor and in manufacturing planning.

Wind Systems

Towers, turbines, gearboxes; processes for shaping and finishing component parts.

more free magazines

Materials

Design

Processes

Units

Formulas

Math
 
List Units: A B C D E-F G H-I J-L M N O-P Q-R S T U-Z
 1-30 (of 36)  next >>
Thermal conductance (total)
Unit Name Symbol SI Equivalent 
· watt per kelvin 
W/K  1 W/K 
Thermal conductivity
Unit Name Symbol SI Equivalent 
· British thermal unit (IT) per foot per hour per Fahrenheit degree 
Btu (IT)/ft-h-°F  1.73073 W/m-K 
· British thermal unit (IT)-inch per square foot per hour per Fahrenheit degree 
Btu (IT)-in/h-ft2-°F  0.144228 W/m-K 
· British thermal unit (IT)-inch per square foot per second per Fahrenheit degree 
Btu (IT)-in/s-ft2-°F  519.22 W/m-K 
· British thermal unit (therm.) per foot per hour per Fahrenheit degree 
Btu (therm.)/ft-h-°F  1.72958 W/m-K 
· British thermal unit (therm.)-inch per square foot per hour per Fahrenheit degree 
Btu (therm.)-in/h-ft2-°F  0.144131 W/m-K 
· British thermal unit (therm.)-inch per square foot per second per Fahrenheit degree 
Btu (therm.)-in/s-ft2-°F  518.873 W/m-K 
· calorie (IT) per centimeter per second per degree Celsius 
cal (IT)/cm-s-°C  418.673 W/m-K 
· calorie (therm.) per centimeter per second per degree Celsius 
cal (therm.)/cm-s-°C  418.4 W/m-K 
· watt per centimeter per celsius degree 
W/cm-°C  100 W/m-K 
· watt per meter per Celsius degree 
W/m-°C  1 W/m-K 
· watt per meter per kelvin 
W/m-K  1 W/m-K 
Thermal expansion coefficient
Unit Name Symbol SI Equivalent 
· microinch per inch per Fahrenheit degree 
µin/in-°F  1.8x10-6 /K 
· micron per meter per Celsius degree 
µm/m-°C  10x10-7 /K 
· per Celsius degree 
/°C  1 /K 
· per Fahrenheit degree 
/°F  1.8 /K 
· per Kelvin 
/K  1 /K 
Thermal heat capacity
Unit Name Symbol SI Equivalent 
· British thermal unit (IT) per pound mass 
Btu (IT)/lbm  2326 J/kg 
· British thermal unit (therm.) per pound mass 
Btu (therm.)/lbm  2324.44 J/kg 
· calorie (IT) per gram 
cal (IT)/g  4186.74 J/kg 
· calorie (therm.) per gram 
cal (therm.)/g  4184 J/kg 
· joule per gram 
J/g  1000 J/kg 
· joule per kilogram 
J/kg  1 J/kg 
· kilocalorie (IT) per kilogram 
Cal (IT)/kg, kcal/kg  4186.74 J/kg 
· kilowatt-hour per kilogram 
kWh/kg  3.6x106 J/kg 
Thermal heat transfer coefficient
Unit Name Symbol SI Equivalent 
· British thermal unit (IT) per square foot per hour per Fahrenheit degree 
Btu (IT)/h-ft2-°F  5.67826 W/m2-K 
· British thermal unit (therm.) per square foot per hour per Fahrenheit degree 
Btu (therm.)/h-ft2-°F  5.67446 W/m2-K 
· watt per square centimeter per kelvin 
W/cm2-K  1x104 W/m2-K 
· watt per square meter per degree celcius 
W/m2-°C  1 W/m2-K 
· watt per square meter per kelvin 
W/m2-K  1 W/m2-K 
 1-30 (of 36)  next >>
List Units: A B C D E-F G H-I J-L M N O-P Q-R S T U-Z
Glossary