**Civil Engineering Measurements And Conversion Factors**

**Estimation** is a standout among the most imperative things inÂ structuralÂ building and without estimations, we can not finish any development. Here I have recorded some essential estimations and change factors which are most generally utilized as a part ofÂ *structural*Â designing. Expectation it will help you in your work.

**Basic Conversions a Civil Engineer** on Site Must Learn basic must be learn.A unit of measurement is a defined magnitude of a quantity that it used as a standard for measurement for the same kind of quantity, such as measurements of length, weight, and volume.

- 1 bag of cement = .0347 cum
- 1 sqm = 10.76 sqft
- 1 inch = 25.4 mm
- Weight in Kilograms of Mild Steel (Sheet,grill etc.) = (Volume x Density of Mild Steel) = Length x Width x Thickness x 7850 kg/cum. Eg. 2.5 m x 1.25 m x .001 m x 7850 = 24.53 KGsâ€¦â€¦â€¦.. [ Keep a notice on the units ]
- 1 tonne = 1000 KGs
- 1 quintal = 100 KGs
- 1 Acre = 43560 sq. ft = 4046.46 sqm
- 1 cum = 35.32 cuft
- Unit Weight of Steel Bar = D^2/162 where D is the diameter of the bar. Eg. 12 mm dia bars, unit weight = 12*12/162 = 0.89 kg/m. [Unit weight in this case is the weight of steel bar per meter ].
- 1 ton and 1 tonne are different things. 1 ton is US ton which is 907.18 KGs. 1 tonne or 1 MT(usually referred as MT in BOQs) is 1000 KGs.
- In some cases earthworks will be in % Cum wherein you will need to divide the amount by 100. Eg. Earth work in excavation of foundation trenches or drains, Qty = 24295 %cum Rate = Rs. 9161.6 Amount = 24295*9161.6/100.

## Civil Engineering Measurements & Conversion Factors

#### BASIC QUANTITIES AND UNITS:

Quantity | Dimension | SI Unit | FPS Unit |

Mass | M | Kg | Slug |

Length | L | M | ft. |

Time | T | sec. | sec. |

Force | F | Newton (N) | Pound (lb) |

**BASIC STANDARDS:**

1 Kilogram (kg) = 2.2046 pounds (lb).

1 liter = 0.22 galls (imp.)

**METRIC UNIT OF WEIGHT/MASS:**

**MEASUREMENTS OF LENGTH:**

**METRIC UNITS FOR LIQUID MEASUREMENTS:**

**CONVERSION FACTORS:**

**MEASUREMENTS OF AREA:**

**MISCELLENIUS CONVERSION FACTORS:**

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# Convert USCS into SI Units

USCS unit X Factor = SI unit | SI symbol |

Square foot X 0.0929 = Square meter | M^{2} |

Cubic foot Â X 0.2831 = Cubic meter | M^{3} |

Pound per square inch X 6.894 = Kilopascal | KPa |

Pound force X 4.448 = Â Newton | Nu |

Foot pound torque X 1.356 = Newton meter | N-m |

Kip foot X 1.355 = Kilo-newton meter | LN-m |

Gallon per minute X 0.06309 = Liter per second | L/s |

Kip per square inch X 6.89 = Mega-pascal | MPa |

Basic Conversions a Civil Engineer on Site Must Learn useful for civil engineer in field work.

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