Meter ↔ Kilogram (Roll) Converter

From weight and width, find a roll’s metres ↔ kilograms.

Formula

Weight per metre (g) = GSM × width(m). Weight (kg) = length(m) × GSM × width(m) ÷ 1000. Length (m) = weight(kg) × 1000 ÷ (GSM × width). Enter either length or weight; the other is computed.

Worked example

180 g/m², 1.5 m width, 1000 m → per metre 180 × 1.5 = 270 g; total 1000 × 270 ÷ 1000 = 270 kg. Conversely 270 kg → 270 × 1000 ÷ 270 = 1000 m.

Frequently asked questions

How many metres is 1 kg of fabric?

Length = 1 × 1000 ÷ (GSM × width). E.g. at 180 g/m² and 1.5 m width: 1000 ÷ 270 = 3.70 m/kg.

How do I find roll weight?

Weight (kg) = length × GSM × width ÷ 1000. Weight per metre = GSM × width (g).