Dave's Math Tables: Weights and Measures |

(Math | General | Weights and Measures | Areas) |

Before you use this table

The notation 1.23**E + 4** stands for 1.23 x 10^{+4} = 0.000123.

_{from} \ ^{to} | = __ acres | = __ feet^{2} | = __ inches^{2} | = __ meters^{2} | = __ miles^{2} | = __ yards^{2} |

acre | 43560 | 6272640 | 4046.856... | (1/640) | 4840 | |

foot^{2} | (1/43560) | 144 | 0.09290304 | (1/27878400) | (1/9) | |

inch^{2} | (1/6272640) | (1/144) | E - 4 | E - 10 | (1/1296) | |

meter^{2} | E - 4 | 1550.0031 | E - 7 | |||

mile^{2} | 640 | 27878400 | E + 9 | E + 6 | 3097600 | |

yard^{2} | (1/4840) | 9 | 1296 | 0.83612736 | E - 7 |

Examples: foot

**Useful Exact Area & Length Relationships**

acre = (1/640) milesNote that when converting area units:^{2}

mile = 1760 yards = 5280 feet

yard = 3 feet = 36 inches

foot = 12 inches

inch = 2.54 centimeters

(1 foot)

The linear & area relationships are not the same!