Length
One Inch = .0254 meters = 2.54 centimeters
One Foot = .3048 meters = 12 inches
One Yard Equals = .9144 Meters = 36 Inches = 3 Feet
One Mile Equals = 1609.34 Meters = 5280 Feet
One Meter = 39.37 Inches = 3.28 Feet
One Kilometer = 3280.84 Feet = .62137 Miles
Mass or Weight
One U.S. ton = 907.2 Kilograms = .9072 Metric Tons = 2000 Pounds
One Pound = .4536 Kilograms = 16 Ounces
One Ounce = .02835 Kilograms
One Metric Ton = 1.102 U.S. Tons = 2204.59 Pounds
One Kilogram = 2.2046 Pounds
Temperature
Celcius to Fahrenheit
Multiply by 1.8, then add 32.
Ex. 14ºC = (14 x 1.8) + 32 = 57.2
Fahrenheit to Celcius
Subract 32, the divide by 1.8.
Ex. 84ºF = (84-32)/1.8 = 28.8ºC
Velocity
One Mile per Hour = .447 Meters per Second = 1.609 Kilometers per Hour = 1.4667 Feet per Second
One Foot per Second = .3048 Meters per Second = 1.097 Kilometers per Hour = .6818 Miles per Hour
One Meter per Second = 3.6 Kilometers per Hour = 2.23 Miles per Hour = 3.28 Feet per Second
Area
One Square Foot = .0929 Square Meters = 144 Square Inches
One Square Yard = .8361 Square Meters = 1296 Square Inches = 9 Square Feet
One Acre = 4046.86 Square Meters = 43560 Square Feet = 4840 Square Yards
One Square Mile = 2.59 Square Kilometers = 640 Acres
One Square Meter = 1550 Square Inches = 10.76 Square Feet
Capacities or Volume
One Liter = 202.88 Teaspoons = 67.62 Tablespoons = 33.81 Fluid Ounces = 4.22 Cups = 2.11 Pints = 1.05 Quarts = .264 Gallons
One Tablespoon = 3 Teaspoons = .5 Fluid Ounces
One Fluid Ounce = 6 Teaspoons = 2 Tablespoons = .125 Cups
One Liquid Cup = 48 Teaspoons = 16 Tablespoons = 8 Fluid Ounces = .5 Pints = .25 Quarts
One Liquid Pint = 96 Teaspoons = 32 Tablespoons = 16 Fluid Ounces = 2 Cups = .5 Quarts = .125 Gallons
One Liquid Quart = 192 Teaspoons = 64 Tablespoons = 32 Fluid Ounces = 4 Cups = 2 Pints = .25 Gallons
One Liquid Gallon = 768 Teaspoons = 256 Tablespoons = 128 Fluid Ounces = 16 Cups = 8 Pints = 4 Quarts
One Cubic Foot = 7.48 Gallons = .805 Bushel
One Cubic Yard = 201.97 Gallons = 21.745 Bushels