Fabric GSM Calculator
Calculate fabric grams per square metre from sample weight and dimensions.
Calculator
Result
Calculated from the values entered.
How to use this calculator
What to enter
Enter or select the following as requested: Sample weight (g); Sample length (cm); Sample width (cm). Follow the units, valid ranges, examples, and options displayed beside each field.
What the result means
The sewing or garment result estimates a measurement, fabric quantity, pattern dimension, size conversion, or project cost from the values entered. Check the measurement method, fabric width, shrinkage, seam allowance, fit preference, and size-system convention used.
When to use it
Use this to plan garment construction, alterations, fabric purchases, or pattern scaling. Measure carefully and make a test or fitting sample where a small difference could affect the finished item.