Standard conversion factors INCH = 25.4 MILLIMETRE FOOT = 0.3048 METRE YARD = 0.9144 METRE MILE = 1.6093 KILOMETER ACRE = 0.4047 HECTARE POUND = 0.4536 KILOGRAM DEGREE FARENHEIT * 5/9 – 32 = DEGREE CELSIUS MILLIMETRE= 0.394 INCH METRE = 3.2808FOOT METRE = 1.0936YARD
1) MILD STEEL (MS) SHEET WEIGHT (KGS) = LENGTH (MM) * WIDTH (MM) * 0. 00000785 * THICKNESS example – The weight of MS Sheet of 1mm thickness and size 1250 MM * 2500 MM shall be 2500MM * 1250 MM * 0.00000785 * 1 = 24.53 KGS/ SHEET ————————————————— ROLLED STEEL CHANNELS MS SQUARE WEIGHT (KGS ) = WIDTH * WIDTH * 0.00000785 * LENGTH. Example : A Square of size 25mm and length 1 metre then the weight shall be. 25 * 25 * .00000785 * 1000mm = 4.90 kgs / metre
MS ROUND WEIGHT (KGS ) = 3.14 * 0.00000785 * ((diameter / 2)*( diameter / 2)) * LENGTH. Example : A Round of 20mm diameter and length 1 metre then the weight shall be. 3.14 * 0.00000785 * ((20/2) * ( 20/2)) * 1000 mm = 2.46 kgs / metre SS ROUND DIA (mm) * DIA (mm) * 0.00623 = WEIGHT PER METRE SS / MS Pipe OD ( mm) – W.Tthick(mm) * W.Thick (mm) * 0.0248 = Weight Per Metre OD ( mm) – W.Tthick(mm) * W.Thick (mm) * 0.00756 = Weight Per Foot
SS / MS CIRCLE DIA(mm) * DIA (mm) * THICK(mm) * 0.0000063 = Kg Per Piece
SS sheet Length (Mtr) * Width (Mtr) * Thick(mm) * 8 = Weight Per Piece Length (ft) * Width (ft) * Thick(inch) * 3 /4 = Weight Per Piece
S.S HEXAGONAL BAR DIA (mm) * DIA (mm) * 0.00680 = WT. PER Mtr Dia (mm) * Dia (mm) * 0.002072 = Wt. Per foot.
BRASS SHEET WEIGHT (KGS) = LENGTH (MM) * BREADTH (MM) * 0. 0000085 * THICKNESS EXAMPLE = THE WEIGHT OF BRASS SHEET OF THICKNESS 1 MM , LENGTH 1220 MM AND BREADTH 355 MM SHALL BE 1220 * 355 * 0.0000085 * 1 = 3.68 Kgs / Sheet
COPPER SHEET WEIGHT (KGS) = LENGTH (MM) * BREADTH (MM) * 0. 0000087 * THICKNESS EXAMPLE = THE WEIGHT OF BRASS SHEET OF THICKNESS 1 MM , LENGTH 1220 MM AND BREADTH 355 MM SHALL BE 1220 * 355 * 0.0000087 * 1 = 3.76 Kgs / Sheet BRASS / COPPER PIPE OD (mm) – THICK (mm) * THICK(mm) * 0.0260 = WEIGHT PER METRE
ALUMINIUM SHEET WEIGHT (KGS) = LENGTH (MM) * BREADTH (MM) * 0. 00000026 * THICKNESS EXAMPLE = THE WEIGHT OF ALUMINIUM SHEET OF THICKNESS 1 MM , LENGTH 2500 MM AND BREADTH 1250 MM SHALL BE 2500 * 1250 * 0.0000026 * 1 = 8.12 Kgs / Sheet
ALUMINIUM PIPE OD (mm) – THICK(mm) * THICK(mm) *0.0083 = WEIGHT PER METRE
We are extremely thankful to Er. Harpal Aujla for sharing this on our site and thus helping civil engineering students.
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More Useful Measurement Units
The E indicates an exponent, as in scientific notation, followed by a positive or negative number, representing the power of 10 by which the given conversion factor is to be multiplied before use.
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Detailed Units
Typical Conversion Table *
To convert from | To | Multiply by * | |
Square foot | Square meter | 9.290304 | E – 02 |
Foot per second squared | Meter per second squared | 3.048 | E – 01 |
Cubic foot | Cubic meter | 2.831685 | E – 02 |
Pound per cubic inch | Kilogram per cubic meter | 2.767990 | E + 04 |
Gallon per minute | Liter per second | 6.309 | E – 02 |
Pound per square inch | Kilopascal | 6.894757 | |
Pound fource | Newton | 4.448222 | |
Kip per square foot | Pascal | 4.788026 | E + 04 |
Acre foot per day | Cubic meter per second | 1.427641 | E – 02 |
Acre | Square meter | 4.046873 | E + 03 |
Cubic foot per second | Cubic meter per second | 2.831685 | E – 02 |
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Measurement Units
Civil engineers throughout the world accept both the United States Customary System (USCS) and the System International (SI) units of measure for both applied and theoretical calculations. However, the SI units are much more widely used than those of the USCS. Hence, both the USCS and the SI units are presented for essentially every formula in this website.
To permit even wider use of this text, this website contains the conversion factors needed to switch from one system to the other.
Commonly Used USCS and SI Units *
USCS unit | SI unit | SI symbol | Conversion factor ( multiply USCS unit by this factor to obtain SI unit) |
Square foot | Square meter | M2 | 0.0929 |
Cubic foot | Cubic meter | M3 | 0.2831 |
Pound per square inch | Kilopascal | KPa | 6.894 |
Pound force | Newton | Nu | 4.448 |
Foot pound torque | Newton meter | N-m | 1.356 |
Kip foot | Kilonewton meter | LN-m | 1.355 |
Gallon per minute | Liter per second | L/s | 0.06309 |
Kip per square inch | Megapascal | MPa | 6.89 |