Quick answer
How do you calculate fabric weight?
Fabric weight (kg) = GSM × width (m) × length (m) ÷ 1000.
Area = Width (m) × Length (m)
How it works
Fabric Weight Calculator
Find the weight of any fabric piece or roll from its GSM, width and length — in kilograms and pounds.
GSM tells you how many grams one square metre weighs. Multiply by the fabric area and divide by 1,000 to get kilograms.
Formula
The formula, in full
- Area
- Width (m) × Length (m)
- Weight (kg)
- Area × GSM ÷ 1000
- Total
- Weight per piece × Pieces
- Pounds
- kg × 2.20462
Example
10 rolls of 100 m denim
- 01Width 60 in = 1.524 m → area per roll = 152.4 m²
- 02Weight per roll = 152.4 × 340 ÷ 1000 = 51.82 kg
- 0310 rolls = 518.16 kg (1,142.4 lb)
Use “Load Example” above to run this example in the calculator.
Industry tip
Industry tip
“Use this to cross-check delivery challans: if roll weights differ from the calculated weight by more than 3–5%, check GSM or width on the roll.”
Assumptions
What this calculator assumes
- GSM is uniform across the length.
- Width entered is the full width including selvedge if the roll is weighed with selvedge.
FAQ
Frequently asked questions
How do you calculate fabric weight?
Fabric weight (kg) = GSM × width (m) × length (m) ÷ 1000.
How do I convert kg to pounds?
Multiply kilograms by 2.20462.
Formula and worked example checked by the TextileSuite team on 17 October 2026. Results are planning estimates — confirm critical numbers against your own samples and lab reports.