Physics is special in the way it measures and predicts the physical world. Measuring is the beginning point. Like there are different types of measuring scales to measure different dimensions, there are different measurement systems followed by different countries worldwide.Common measurement systems are; the centimeter-gram-second (CGS) and the meter-kilogram-second (MKS) systems which are together called SI system. Then there is also Foot-Pound-Inch system the FPI system. To convert between measurements in different measuring systems, you can multiply by a conversion factor. A conversion factor is a ratio which is multiplied by the value we are converting. The conversion factor must equal 1.

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Length

1 in = 2.54 cm = 0.0254 m |

1 ft = 30.48 cm = 0.3048 m |

1 yard = 91.44 cm = 0.9144 m |

1 mile = 1.6093 Km = 1609.3 m |

Area

1 in^{2} = 6.4516 cm^{2} ^{ } |

1 ft2 = 0.0929 m2 |

1 acre = 0.4047 hectares = 4047 m2 |

Volume

1 in3 = 16.387 cm3 |

1 ft3 = 0.0283 cm3 |

Weight

1000 mg = 1 g |

1000 g = 1 Kg |

1 lb = 0.4536 Kg = 453.6 g |

Temperature

^{o}F = ºC * 1.8 + 32 |

ºC = (^{o}F - 32)/1.8 |

ºR = ^{o}F + 459.67 |

K = ºC + 273.15 |

It is very important to have Physics conversion chart for
reference every time you are dealing with physics problems. Since the
variables for calculation are presented in different units, if the
conversions are not done appropriately, the answers will be skewed and
incorrect.