Conversion to Metric Units          Conversion from Metric Units

LINEAR MEASURE
To convert                 Multiply by     To convert                 Multiply by

inches to millimeters...........25.4       millimeters to inches............0.039
inches to centimeters............2.54      centimeters to inches............0.394
feet to meters...................0.305     meters to feet...................3.281 
yards to meters..................0.914     meters to yards..................1.094
miles to kilometers..............1.609     kilometers to miles..............0.621 

SQUARE MEASURE
To convert                 Multiply by	   To convert                 Multiply by

sq. inches to sq. centimeters....6.452     sq. centimeters to sq. inches....0.155
sq. feet to sq. meters...........0.093     sq. meters to sq. feet..........10.764
sq. yards to sq. meters..........0.836     sq. meters to sq. yards..........1.196
acres to hectares................0.405     hectares to acres................2.471

CUBIC MEASURE
To convert                 Multiply by     To convert                 Multiply by 

cu. inches to cu. centimeters...16.387     cu. centimeters to cu. inches....0.061
cu. feet to cu. meters...........0.028     cu. meters to cu. feet..........35.315
cu. yards to cu. meters..........0.765     cu. meters to cu. yards..........1.308

LIQUID MEASURE
To convert                 Multiply by     To convert                 Multiply by

fluid ounces to liters           0.03      liters to fluid ounces..........33.814
quarts to liters.................0.946     liters to quarts.................1.057
gallons to liters................3.785     liters to gallons................0.264
imperial gallons to liters.......4.546     liters to imperial gallons.......0.220

WEIGHTS

To convert                 Multiply by      To convert                Multiply by
ounces avoirdupois to grams......28.35      grams to ounces avoirdupois.....0.035
pounds avoirdupois to kilograms...0.454     kilograms to pounds avoirdupois.2.205 
tons to metric tons...............0.907     metric tons to tons.............1.102

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TEMPERATURE
                Fahrenheit thermometer       Celsius (or Centigrade) thermometer
                        32o F   freezing point of water    0o C
                       212o F   boiling point of water   100o C
                      98.6o F   body temperature          37o C
      To find degrees Celsius, subtract 32 from degrees Fahrenheit and divide by 1.8. 	 
      To find degrees Fahrenheit, multiply degrees Celsius by 1.8 and add 32.