## Concrete

Cross - References: | Shapes: |

Specific Weight | Circle |

1 pound water = 27.7 cubic inches = 0.1198 gallons | Area = Square of Diameter x .7854 or |

1 cubic foot water = 62.43 pounds | Radius x 3.1416 |

1 gallon water = 8.345 pounds | |

Circumference = Diameter x 3.1416 | |

Length | |

1 inch = 2.54 centimeters | Diameter = Circumference ÷ 3.1416 |

1 centimeter = 0.39 inches | |

1 foot = .0305 meter | Area of Circular Ring = .7854 x (Outside Diameter Squared minus Inside Diameter Squared) |

1 meter = 3.28 feet | |

1 mile = 1.61 kilometers | Doubling diameter increases area four (4) times |

1 kilometer = .62 miles | Tripling diameter increases area nine (9) times |

Inches to centimeters - multiply by 2.54 | Square/Rectangle |

Centimeters to inches - multiply by .039 | Area = Length x Width |

Feet to meters - multiply by 0.305 | Diagonal = Square Root of width squared + length squared |

Meters to feet - multiply by 3.28 | |

Volume | Side (square only) = Diagonal x .7071 |

1 fluid ounce = 29.57 milliliters | |

10 milliliters = 0.34 fluid oz | Triangle |

1 quart = 9.46.35 milliliters | Area = Base x 1/2 of perpendicular height |

1 liter = 1.06 US quarts | |

1 gallon = 3.79 | Cube |

Area of surface = Square of side x 6 | |

Ounces to milliliters - multiply by 29.57 | |

Milliliters to ounces - multiply by 0.034 | Volume = Cube of side |

Quarts to liters - multiply by .095 | Diagonal = Side x 1.732 |

Liters to quarts - multiply by 1.06 | |

Cylinder | |

1 cubic inch = 16.39 cubic centimeters | Area of Curved Surface = Diameter x Length x 3.1416 |

1 cubic foot = 1728 cubic inches = 7.48 gallons | |

1 cubic yard = 27 cubic feet = 0.7646 cubic meters | |

Volume = Square of Diameter x .7854 x length | |

Cone | |

Area of Curved Surface = Diameter of Base x Slant Height x 1.5708 | |

Volume = Diameter of Base Squared x Perpendicular Height x .2618 or Area of Base x 1/3 Perpendicular Height |