Math2.org Math Tables: Unit Conversion Tables for Lengths

(Math)

Preliminary note: Before you use this table, convert to the base measurement first, in that convert centimeters to meters, convert kilograms to grams. In this way, I don't have to list every imaginable combination of metric units.

from \ to = __ feet = __ inches = __ meters = __ miles = __ yards
foot   12 0.3048 1/5280 1/3
inch 1/12   0.0254 1/63360 1/36
meter 3.280839... 39.37007...   6.213711...E - 4 1.093613...
mile 5280 63360 1609.344   1760
yard 3 36 0.9144 1/1760  

Note: The notation 1.23E-4 stands for 1.23 x 10-4 = 0.000123.

To use: Find the unit to convert from in the left column, and multiply it by the expression under the unit to convert to.

Examples:
foot = 12 inches;
2 feet = 2x12 inches.

Useful Exact Length Relationships

mile = 1760 yards = 5280 feet
yard = 3 feet = 36 inches
foot = 12 inches
inch = 2.54 centimeters