How to Calculate the Weight of a Steel Plate

Written by peter flom
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The obvious answer to the question of how to determine how heavy a steel plate is to weigh the plate. However, that will often not be possible. The plate may be too big to move, or may sit in a vital spot. In this case, as long as you know the dimensions of the plate, you can find the approximate weight using a calculating program such as Microsoft Excel.

Skill level:
Moderately Easy

Things you need

  • Computer with Microsoft Excel
  • Tape measure

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  1. 1

    Measure the height, length and breadth of the plate with a tape measure. Double-check your data to ensure accuracy.

  2. 2

    Open Excel. Enter the height of the plate in cell A1, the length of the plate in cell A2 and the breadth of the plate in cell A3.

  3. 3

    Convert all dimensions to meters if necessary. If cell A1 is in inches, then in cell B1, enter "=A10.0254." If A1 is in feet, in cell B1 enter "=A10.3040." If cell A1 is in centimetres, then in cell B1 enter "=a1*0.01." Do the same for cells A2 and A3.

  4. 4

    Find the volume. If A1, A2 and A3 appear in meters, then in cell A4 enter "=a1a2a3." Otherwise, in cell B4 enter "=B1B2B3."

  5. 5

    Multiply the results by the density of steel. Although different types of steel have different densities, an approximate value is 7850kg/cubic meter. So, in cell A5 or B5 enter either "=A47850" or "=B47850."

  6. 6

    Convert to pounds, if desired. If you want the result in pounds instead of kilograms, then in cell A6 or B6 enter "=A5/2.2" or "=B5/2.2."

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