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Calibration Resources
Unit Conversion Tables for Areas
A note on the metric system:
Before you use this table convert to the base measurement first. For example, convert centimeters to meters , convert kilograms to grams .
| from \ to | = __ acres | = __ feet2 | = __ inches2 | = __ meters2 | = __ miles2 | = __ yards2 |
| acre | 43560 | 6272640 | 4046.856... | (1/640) | 4840 | |
foot2 |
(1/43560) | 144 | 0.09290304 | (1/27878400) | (1/9) | |
inch2 |
(1/6272640) | (1/144) | 6.4516 E - 4 |
3.587006 E - 10 | (1/1296) | |
meter2 |
2.471054... E - 4 |
10.76391... | 1550.0031 | 3.861021... E - 7 | 1.195990... | |
mile2 |
640 | 27878400 | 2.78784 E + 9 |
2.589988... E + 6 |
3097600 | |
yard2 |
(1/4840) | 9 | 1296 | 0.83612736 | 3.228305... E - 7 |
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: foot2 = 144 inches2; 2 feet2 = 2x144 inches2.
Useful Exact Area & Length Relationships
acre = (1/640) miles2
mile = 1760 yards = 5280 feet
yard = 3 feet = 36 inches
foot = 12 inches
inch = 2.54 centimeters
Note that when converting area units:
1 foot = 12 inches
(1 foot)2 = (12 inches)2 (square both sides)
1 foot2 = 144 inches2
The linear & area relationships are not the same!
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