Temperature    
ºC(elsius) to ºF(ahrenheit) multiply by 1.8 and add 32  
ºF(ahrenheit) to ºC(elsius) subtract 32 and divide by 1.8  
     
Length & Distance    
One Mile = 5210 Feet    
  Miles to Kilometres multiply by 1.61
Three (3) Feet = 1 Yard    
  Feet to Metres multiply by .30
One Foot = 12 Inches    
  Inches to Centimetres multiply by 2.54
     
Weight & Volume    
One Pound (lb) = 16 Ounces    
  Ounces to Grams multiply by 28.35
  Pounds to Kilograms multiply by .45
  Kilograms to Pounds multiply by 2.21
One Gallon = 3.79 Litres