Conversion Tables

Base Units and Some Derived Units of Sl (System International Metric)
 

Physical
Quantity		 Name
of Unit		 Symbol
for Unit		 Physical
Quantity		 Name
of Unit		 Symbol
for Unit
Length  Meter      m  Volume  Cubic Meter     m3
Mass (weight) Kilogram     kg  Density  Kilogram per 
Cubic Meter 		  kg/m3
Time Second      s  Velocity  Meter per Second   m/s
Electric Current Ampere      A  Acceleration  Meter per  
Second Squared 		   m/s2
Thermodynamic  
Temperature		 Kelvin      K Pressure Kilopascal   kPa
Luminous Intensity Candela     cd  Force  Newton     N
Area Square Meter    m2 Bending Moment Newton Meter   N.m

Symbols for units do not take a plural form.

Distance  

Inch-Pound Units Sl System Sl System Units Inch-Pound
1 inch     = 25.4 millimeters 1 millimeter    = 0.03937 inch
1 foot    = 0.3048 meter  1 meter     = 3.281 feet
1 yard    = 0.9144 meter  1 meter     = 1.094 yard
1 rod    = 5.029 meters  1 kilometer     = 0.6214 mile
1 mile    = 1.609 kilometer

Mass (Weight)
 

Weight Unit SI System
1 ounce (avoir)   = 28.350 grams
1 pound (avoir)   = 453.592 grams
1 gram   = 0.035 ounce (avoir)
1 kilogram   = 2.205 pounds (avoir)


 

Area
1 square inch = 645.16 square millimeters
1 square foot = 0.093  square meter
1 square yard = 0.836  square meter
1 acre = 0.405  hectares
1 square mile  = 259.0  hectare*
1 square mile = 2.590  square kilometers
1 square millimeter = 0.00155  square inch
1 square meter = 10.76  square feet
1 square meter = 1.196  square yard
1 hectares = 2.471 acres
1 square kilometer = 0.386  square mile

 * 1 hectare = 1 square hectometer 

 

Liquid = Volume (Capacity)
1 pint (U S.) = 0.473 liter
1 quart (U.S.) = 0.946 liter
1 gallon (U.S.) = 3.785 liters
1 barrel (U.S.) = 158.98 liters

 

Volume
1 cubic inch = 16387  cubic millimeters
1 cubic foot = 0.0283 cubic meter
1 cubic yard  = 0.765  cubic meter
1 cubic meter = 35.315 cubic feet
1 cubic meter = 1.308  cubic yard

 * 1 hectare = 1 square hectometer