MASS CONVERSION

Ounces to Grams converter

Convert ounces to grams instantly.

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No regional currency, unit or language profile is applied. This choice does not convert values or change formulas, results, routes or legal guidance.

Ounces ozEnter a finite number. Decimal comma and copied grouping separators are accepted.

1 oz equals

28.349523125 gInstant ounces to grams conversionCalculated locally in your browser using the stated conversion formula.

Ounces to Grams conversion guide

Use this calculator when comparing measurements, checking specifications, planning travel, preparing materials or reading information published in another unit system. Enter any value above to receive the converted result immediately.

Worked example: 10 oz equals 283.49523125 g. The displayed result is rounded for readability while the calculator retains full numeric precision.

About Ounces and Grams

Ounces: The avoirdupois ounce is one sixteenth of an avoirdupois pound. Imperial or US customary measurement, depending on the unit.
Grams: A gram equals exactly one thousandth of a kilogram. International System of Units (SI) or an SI-derived metric unit.

Precision and common mistakes

The mass ounce uses the avoirdupois definition here. There are exactly 1,000 grams in a kilogram. The calculator keeps the full catalogued factor internally and rounds only the displayed value.

A mass ounce is not a fluid ounce, which measures volume.
Grams measure mass, while millilitres measure volume.
Keep the original value and unit together when copying a result, especially when specifications use several measurement systems.

Ounces to Grams table

1 oz28.34952313 g

5 oz141.74761563 g

10 oz283.49523125 g

25 oz708.73807813 g

50 oz1,417.47615625 g

100 oz2,834.9523125 g

Frequently asked questions

How do I convert ounces to grams?

Multiply the ounces value by 28.3495231250. For example, 10 oz equals 283.49523125 g.

Is this Ounces to Grams conversion accurate?

The calculator uses the stated conversion relationship and keeps full internal precision before formatting the displayed answer. For regulated or safety-critical work, confirm the required rounding standard.

Can I use this converter on a phone?

Yes. The calculator is responsive, keyboard accessible and performs the conversion locally in a modern browser without requiring an account.

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Verification and calculation details

Purpose: Ounces to Grams converter
Variables and units: Use the labelled fields and units shown in the calculator. Results use those units unless a conversion is stated.
Formula and method: The exact formula and worked example are shown below. Deterministic formula executed locally in the browser.
Assumptions: Only entered values and stated assumptions are included. Local fees, rules and professional requirements are excluded unless explicitly shown.
Engine version: 1.0.0
Production verification baseline: Release 63 · source 998803f
Verification run: release-v63-2026-09-20
Last verified: 2026-09-20 — Automated release checks passing

Read the Calculation Standard · Report a calculation or source issue

How this calculator works

Grams = Ounces × 28.3495231250.

Important notes

Results are estimates based on the values entered. Confirm rates, prices, units and professional requirements that apply in your location. Review the Answer Atlas Calculation Standard and corrections policy for formula, privacy and correction rules.