Fabric Weight (GSM)
Compute a fabric's weight in grams per square meter (GSM) by dividing a sample's mass by its area. It is the main measure of fabric 'weight': light T-shirt knits are 140–180 g/m², sweatshirts 280–340, canvas and denim much more. GSM defines hand, drape, durability and price, and is specified in almost every textile spec sheet. Enter the sample's mass and area.
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Gramatura de tecido (GSM)
A gramatura, ou GSM (gramas por metro quadrado), é o número que mais rápido descreve um tecido: o seu peso por área. Uma malha leve de camiseta fica em 140–180 g/m²; uma malha de gola polo (piquet), 200–250; um moletom, 280–340; brins e lonas, bem mais. A gramatura está diretamente ligada ao toque, caimento, opacidade, calor e durabilidade — e ao custo, já que tecido se compra por peso. É medida cortando-se uma amostra de área conhecida (muitas vezes com um cortador circular de 100 cm²) e pesando-a numa balança de precisão. Aparece em praticamente toda ficha técnica têxtil. Informe a massa e a área da amostra.
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Fabric Shrinkage
Compute a fabric's shrinkage after washing, S = (initial measure − final measure)/initial measure · 100%, the percentage reduction in length or width. Almost every fabric shrinks in the first wash (cotton can exceed 5%), so the pattern must compensate for that percentage and the fabric is usually pre-shrunk (sanforized). Ignoring it makes the garment come out smaller than the nominal size. Enter the measures before and after washing.
Fabric Cover Factor
Compute a fabric's cover factor, CF = thread density (threads/cm) · √(Tex), an index of how 'closed' the weave is — how much the threads cover the area, leaving more or fewer open spaces. High factors indicate dense, opaque fabrics (canvas, twill); low ones, sheer, breathable fabrics (voile, mesh). It influences air permeability, opacity and strength. Enter the thread density and the count in Tex.
Fabric Thread Count
Compute a woven fabric's thread density by adding the warp threads (lengthwise) and weft threads (widthwise) per centimeter. It is an indicator of construction and quality: higher density usually means a firmer, more durable and fuller fabric. It appears on spec sheets as 'threads/cm' or 'thread count'. Enter the warp and weft threads per cm.
The results provided by this tool are for general informational and educational purposes only and do not constitute professional, financial, medical, legal, tax or accounting advice. Always confirm important decisions with a qualified professional and official sources.