Convert

Ounce to Gram

Pound is not always the same local unit. UnitCloud uses international avoirdupois values.

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Convert units with formula, context and precision

UnitCloud is a local measurement lab for everyday work, engineering, IT, energy, mobility and design. Every conversion shows result, formula, base unit, rounding and the common mistake.

What do you want to convert?

From1 oz

Result28.34952313 g

Factor1 oz = 28.349523125 g

Source basisBIPM SI Brochure · NIST Guide to SI Appendix B

Examples

011 oz = 28.34952313 g

Example value from the reference table. Internal calculation uses stored factors; display output is rounded.

02Common mistake

Pound is not always the same local unit. UnitCloud uses international avoirdupois values.

03Base unit: g

1 oz = 28.349523125 g. Then the value is converted through the base unit g into Gram.

Table

Ounce	Gram
1	28.34952313
2	56.69904625
8	226.796185
16	453.59237
32	907.18474

Formula

1 oz = 28.349523125 g. Then the value is converted through the base unit g into Gram.

Sources

BIPM SI BrochureSI base units, prefixes and official SI context.NIST Guide to SI Appendix BNIST conversion-factor method and non-SI factors.

Related conversions

Pound to Kilogramlb → kgMass Kilogram to Poundkg → lbMass Gram to Ounceg → ozMass

Search and practice paths

FormulaTableExamplesCommon mistakeEveryday/engineeringExcel/CSVBatch converterPrint view

Factor origin

Factors come from the stored source family and are not derived from rounded display values.

Rounding rule

UnitCloud keeps calculating with stored factors and rounds only the displayed output by selected precision.

When not to use

Do not use as the sole basis for official, medical, safety-critical or contractual decisions.

Citation

Citation note: UnitCloud, conversion with formula, sources current as of May 2026. Mass. Source basis: BIPM SI Brochure · NIST Guide to SI Appendix B.

Common questions

What is the factor for Ounce to Gram?

1 oz = 28.349523125 g

Which formula does Ounce to Gram use?

1 oz = 28.349523125 g. Then the value is converted through the base unit g into Gram.

When should I verify the result?

Do not use as the sole basis for official, medical, safety-critical or contractual decisions.