Ounces to Grams Converter (oz to g)

How to use this calculator: ounces to grams

1. 1Enter the value measured in ounce (oz).
2. 2Confirm the direction is Ounce (oz) to Gram (g); reversing the units changes the factor or offset.
3. 3Apply g = oz × 28.34952313. The live converter performs this substitution as you type.
4. 4Read the answer in g and keep only justified precision.

Conversion formula

Ounces convert to grams by multiplying by 28.349523125. Sixteen ounces make one pound (453.59 g), which is why 8 oz of an ingredient is about 227 g.

The units measure the same quantity at different scales: 1 oz = 28.34952313 g, and 1 g = 0.03527396 oz.

Worked conversion example: Ounces to Grams

1. Given: 4 oz
2. Substitute: g = 4 × 28.34952313 = 113.3980925
3. Result: 4 oz = 113.3980925 g

Accuracy checklist

The converter keeps extra precision internally. Report only the precision supported by the original measurement and follow the required rounding rule.

Direction check: a smaller unit usually gives a larger number; temperature is an exception.

Unit definitions and SI traceability: NIST Office of Weights and Measures — SI Units.