Ounces to Grams Converter
Convert ounces to grams instantly. Exact factor: 1 oz = 28.35 g.
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Convert ounces to grams
The exact conversion factor is 1 oz = 28.35 g. Type any value and the result updates instantly; the math is shown beneath the board.
Worked by hand
Multiply the ounces value by 28.35 to get grams.
Worked example
- Take 1 oz
- multiply by 28.35
- the result is 28.35 g
How to use it
- Enter your ounces
- Read the grams result
- Check the factor line to verify by hand
Frequently asked questions
How many grams are in one ounces?
Exactly 28.35 g, by the SI/NIST definition.
How do I convert grams back to ounces?
Divide by 28.35 — or use the full converter where both directions are one click.
Is this rounding or exact?
The factor is exact; only the displayed decimals are rounded.