Grams to ounces (g to oz)

1 g = 0.0352739619496 oz. To convert grams to ounces, multiply by 0.0352739619496.

The formula

oz = g × 0.03527396195

Where the factor comes from — each unit by its definition, then its size in SI:

  • 1 g = kg / 1000 = 0.001 kg
  • 1 oz = lb / 16 = 0.028349523125 kg

Dividing the two SI sizes gives the factor: 0.0352739619496 (rounded for display; the underlying ratio is fixed by the definitions). The reverse factor is 28.349523125.

Physics formulas take mass in kilograms. Pounds (lb) are a unit of mass; pound-force (lbf) is the weight of a pound — a different quantity, on the force page.

Worked examples

  • A family car (1500 kg): 1,500,000 g = 52,910.9 oz — 1,500,000 × 0.03527396195 = 52,910.9
  • An adult (75 kg): 75,000 g = 2,645.55 oz — 75,000 × 0.03527396195 = 2,645.55
  • A bag of flour (1 lb): 453.592 g = 16 oz — 453.592 × 0.03527396195 = 16
  • A block of butter: 250 g = 8.81849 oz — 250 × 0.03527396195 = 8.81849

Frequently asked questions

How many ounces is 1 g?

1 g = 0.0352739619496 oz.

How do I convert ounces back to grams?

Divide by 0.0352739619496 — or multiply by 28.349523125: 1 oz = 28.349523125 g.

g to oz conversion table

Grams (g)Ounces (oz)
10.035273962
20.070547924
30.10582189
40.14109585
50.17636981
60.21164377
70.24691773
80.2821917
90.31746566
100.35273962
150.52910943
200.70547924
250.88184905
301.0582189
401.4109585
501.7636981
602.1164377
702.4691773
752.6455471
802.821917
903.1746566
1003.5273962
1505.2910943
2007.0547924
2508.8184905
50017.636981
1,00035.273962

Definitions: BIPM, The International System of Units (SI Brochure), 9th edition (2019), Tables 2, 4 and 8 — https://www.bipm.org/en/publications/si-brochure · NIST Special Publication 811 (2008), Guide for the Use of the International System of Units, Appendix B — https://www.nist.gov/pml/special-publication-811. Machine value of the factor: 0.0352739619496.