GSM Calculator
Calculate fabric weight (GSM and Oz/yd²) from yarn count and density

GSM Calculator

Calculate fabric weight (GSM and Oz/yd²) from yarn count and density

How to Use

Enter warp count, weft count, EPI (ends per inch), and PPI (picks per inch). The calculator will compute GSM and Oz/yd².

GSM Formula

GSM = (EPI/Warp Count + PPI/Weft Count) × 23.25

Factors Affecting GSM

  • Yarn count (finer yarn = lower GSM)
  • EPI and PPI (higher density = higher GSM)
  • Fabric construction and weave type