Hypothetical demonstration: 150 cm, 2 m and 250 g/m² give 3 m² and 750 g. These are example inputs only, not a fabric stock claim.
Read a velvet or velour label and work out area and mass
Enter fabric width in centimetres, length in metres, and mass per unit area from specification in grams per square metre. The tool returns area of one flat rectangle in square metres and its mass in grams. Every figure you type is your own input; nothing here is a stock figure, quote or fabric claim.
Area = width cm divided by 100, multiplied by length m. Mass = area in m², multiplied by g/m². Each field must be greater than 0 and no more than 1000000, with at most six decimal places; no exponents, negative numbers or non-numeric values. Results are rounded up to three decimal places. This is one flat rectangle. It is not a cutting layout, not a finished garment's weight and not a check on any supplied GSM figure or real physical piece.
This independent guide helps you read velvet and velour labels. It also shows how to work out area and mass of a flat rectangular piece. Nothing is for sale here and no orders are taken. You supply dimensions and mass per unit area from a specification; pages explain the arithmetic and its limits.
What the pages cover
Three short guides cover label names, mass figures, and care instructions attached to cloth. Each ends with a record you can copy into the notes page.
The calculator works on a single rectangle using width in centimetres, length in metres, and grams per square metre. It gives area and mass for your piece, nothing more.
The sources page lists three reference documents behind factual statements, with no endorsement implied.
How to use it
Start with the names guide if a label uses velvet or velour without saying how cloth was made. Move to the weight guide when you have a grams per square metre figure and a length to work out. Use the care guide for washing, drying and ironing limits exactly as they appear.
Record as you go. A note saved in your browser keeps a supplier reference, specification, care label wording and one observation together. A later question then has an answer to point at.
What this site is not
It is not a shop, catalogue or quote service. Examples are hypothetical inputs, not stock. Nothing predicts shrinkage, wear, fire performance or finished garment weight.
Sources support limited facts only. They are cited for definitions and label conventions, not as endorsements of any product or supplier.