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Fabric weight calculator

Fabric weight is quoted as grams per square metre in most of the world and ounces per square yard in the US.

g/m2
Weight of the piece
810.0g
= Exact Fabric weight
Weight in ounces per square yard
5.309
Ounces per square foot
0.5899
Area
4.500
Weight in ounces
28.57
Weight per linear metre
270.0 g/m
Show the working
  1. Fabric weight = 180
  2. Length of fabric = 3
  3. Fabric width = 150
  4. Weight in ounces per square yard = 180 / 33.905747 = 5.308 83
  5. Ounces per square foot = 180 / 305.1517 = 0.589 871
  6. Area = 3 * 150 / 100 = 4.5
  7. Weight of the piece = 4.5 * 180 = 810
  8. Weight in ounces = 810 / 28.349523125 = 28.5719
  9. Weight per linear metre = 150/100 * 180 = 270

Values are shown to six significant figures here; the arithmetic itself runs on exact fractions and is only rounded where a number is printed.

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    The formula

    • ounces per square yard = GSM / 33.905 747
    • weight = area x GSM

    Shirting is 100 to 150 GSM, denim 300 to 450, canvas 350 upward.

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