Convert Grams per Square Centimetre to oz/ft²

Formula

oz/ft² = g/cm² × 32.7705829796

Derivation from SI units:

• 1 g/cm² = 10 000 g/m² (1 m² = 10 000 cm²)
• 1 oz/ft² = 28.349523125 g ÷ 0.09290304 m² = 305.1517192 g/m² (exact ratio)
• 1 g/cm² = 10000 g/m² ÷ 305.1517272739 g/m² per oz/ft² = 32.7705829796 oz/ft²

Both units are defined exactly, so the factor is exact. Gram per Square Centimetre definition: gram per square centimetre; Ounce per Square Foot definition: ounce per square foot.

Worked examples

1. A reading of 0.015 g/cm² converts to 0.4915587447 oz/ft².
   0.015 g/cm² × 32.77058298 = 0.4915587447 oz/ft²
2. A value of 0.05 g/cm² is 1.638529149 oz/ft².
   0.05 g/cm² × 32.77058298 = 1.638529149 oz/ft²

Where it's used

Grams per Square Centimetre are used for small-sample laboratory weighing, while ounces per square foot appear in coated fabrics and laminates. Both measure fabric weight (mass per unit area, GSM), so the conversion is a fixed factor.

Gram per Square Centimetre to other fabric weight units

Frequently asked questions

Sources

• The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures .
• Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "ounce (avoirdupois)".

Last reviewed: 2026-10-15. Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.