How to convert grams to oz?
Type a value in either box, and the answer shows it in the other unit as you type.
- Ounces (oz)
- 0.035274
1 g = 0.035274 oz.
Ounces (oz): 0.035274. 1 g = 0.035274 oz.
Ounces (oz) by grams (g)
How to calculate
Converts grams (g) to ounces (oz) and back, with the exact unit definitions.
Example with the default inputs (Grams (g) 1): 1 g = 0.035274 oz.
Formula: oz = g × 0.0352739619496 (the same as g ÷ 28.349523125)
- 1 gram = 0.0352739619496 ounces, from the exact definitions in NIST SP 811.
- Ounces here are avoirdupois ounces, a weight: 1 oz = 1/16 lb = 28.349523125 g. A US fluid ounce is a volume.
- Exact on the typed decimals: at most 6 decimal places (6 significant digits below 0.0001), rounded half up; an answer of 1 billion or more shows at most 15 significant digits.
Worked examples
Each example is checked against the calculator on every build.
- Grams (g) 1 gives Ounces (oz) 0.035274.Source: Exact unit definitions in NIST SP 811 (2008), Appendix B.8
- Grams (g) 100 gives Ounces (oz) 3.527396.Source: Exact unit definitions in NIST SP 811 (2008), Appendix B.8
- Ounces (oz) 16 gives Grams (g) 453.59237.Source: Exact unit definitions in NIST SP 811 (2008), Appendix B.8
Other questions people ask
How many ounces are in a gram?
1 gram is 0.035274 ounces, from the exact unit definitions (NIST SP 811).
How do I convert grams to oz?
Multiply by 0.035274: oz = g × 0.0352739619496 (the same as g ÷ 28.349523125). For example, 1 g × 0.035274 = 0.035274 oz.
How do I convert oz back to grams?
Multiply by 28.349523, or type the ounces into the second box and the converter works it out. 1 ounce is 28.349523 grams.
Is an ounce here a weight or a volume?
A weight: the avoirdupois ounce, 1/16 of a pound (28.349523125 g exactly). A US fluid ounce (29.57 mL) measures volume, as on cups-to-ounces pages.
What is 100 grams in ounces?
3.527396 oz: 100 ÷ 28.349523125.
What is 500 g in ounces and pounds?
17.636981 oz, or 1.102311 lb: a pound is 16 oz, 453.59237 g exactly (NIST SP 811).