Denier to GSM & GSM to denier calculator
Woven fabric GSM depends on the tape denier and the mesh (tapes per inch in warp and weft). Convert in either direction with the standard woven sack formula.
Denier → GSM
Here the denier is yours and the mesh decides the GSM. To hold a GSM and see what the mesh does to the denier, use the tool on the right.
GSM → Denier
Denier to GSM formula for woven fabric
Denier = GSM × 228.6 ÷ (warp mesh + weft mesh) (same denier both ways)
Where does 228.6 come from? One denier is 1 gram per 9,000 metres of tape. Mesh is counted per inch, and there are 39.37 inches in a metre, so one square metre of fabric holds 39.37 × mesh tapes of 1 m each in every direction. 9,000 ÷ 39.37 = 228.6.
Quick reference (same denier warp and weft)
| Denier | 8 × 8 | 10 × 10 | 12 × 12 | 14 × 14 |
|---|---|---|---|---|
| 700 | 49.0 | 61.2 | 73.5 | 85.7 |
| 800 | 56.0 | 70.0 | 84.0 | 98.0 |
| 900 | 63.0 | 78.7 | 94.5 | 110.2 |
| 1000 | 70.0 | 87.5 | 105.0 | 122.5 |
| 1100 | 77.0 | 96.2 | 115.5 | 134.7 |
| 1200 | 84.0 | 105.0 | 126.0 | 147.0 |
These are theoretical GSM values. Actual fabric GSM runs slightly higher because of tape width tolerance, crimp and moisture; most plants apply a 2–4% correction or measure a 10 × 10 cm sample. Coated or laminated fabric adds the coating GSM on top.
FAQ
What is DNR in woven sacks?
DNR is short for denier, the linear density of the PP or HDPE tape: grams per 9,000 metres. A 900 denier tape weighs 0.1 g per metre.
What GSM is a 10 × 10 mesh, 900 denier fabric?
900 × (10 + 10) ÷ 228.6 = 78.7 GSM unlaminated.
How do I get GSM for laminated fabric?
Add the coating GSM (typically 12–25) and, for BOPP lamination, the film GSM (micron × 0.92). Use the BOPP bag calculator.