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Helpful Formulas

Helpful Formulas
  1. Change inches into millimeters (mm):
    inches x 25.4 = mm

  2. Change millimeters (mm) into inches:
    mm x 0.03937 = inches

  3. Change feet into meters (m):
    feet x 0.3048 = meters

  4. Change meters (m) into feet:
    meters x 3.2808 = feet

  5. Change yards into meters (m):
    yards x 0.9144 = meters

  6. Change meters (m) into yards:
    meters x 1.0936 = yards

  7. Change ounces into grams (g):
    ounces x 28.3495 = grams

  8. Change grams (g) into ounces:
    grams x 0.0353 = ounces

  9. Changes oz./sq. yd. into grams/sq. meter:
    oz./sq. yd. x 33.9057 = grams/sq. meter

  10. Change grams/sq. meter into oz./sq. yd.:
    grams/sq. meter x 0.0295 = oz./sq. yd.

  11. Tube diameters:
    Outside diameter (OD) = 2 x wall thickness (WT) + inside diameter (ID)