oz to g as you type
The result updates instantly using the exact defined factor, where 1 oz = 28.3495 g. No page reloads and no rounding surprises.
CalculatorsRuns in your browser
Oz to Grams Converter
Convert ounce to gram instantly, in your browser.
- Input
- No upload needed — instant
- Privacy
- Nothing is uploaded
- Cost
- Free · no sign-up · no watermark
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Processed entirely on your device
Everything you type or paste is handled by JavaScript running in this tab. No request is sent, nothing is logged and nothing is stored. Close the page and it is gone.
Overview
About the Oz to Grams Converter
Turn Ounce into Gram with an exact factor. Type a value and get g, every other weight unit, and the working — all locally, with nothing uploaded.
Ounce and Gram describe the same quantity on two different scales, and converting between them is a single arithmetic step once you know the exact factor. This page does that step in your browser: type a value in oz and the g result appears immediately, alongside the same figure in every other weight & mass unit.
The conversion
One oz is exactly 28.3495 g:
g = oz × 28.3495
oz = g × 0.035274Multiply to go one way, divide (or multiply by the inverse) to come back. The factor is a defined constant, not a measurement, so it never needs rounding.
Worked example
10 oz = 283.4952 g. Enter 10 in the box above and you will see exactly that, plus the value carried across the rest of the weight scale so you can sanity-check it against a unit you already recognise.
About these units
Mass conversions are likewise exact. The pound is defined as precisely 0.45359237 kilograms, so ounces, pounds, stones and tonnes all resolve back to the kilogram by multiplication without any empirical uncertainty.
Converting the other way
Press Swap to turn this into a g-to-oz converter in place. The inverse factor, 1 g = 0.035274 oz, is shown in the arithmetic panel so you can check the reverse calculation independently.
Step by step
How to use the Oz to Grams Converter
Enter the value in oz (ounce) that you want to convert.
Read the answer in g, which updates the moment you type.
Scan the full weight table to see the same value in every other unit at once.
Copy the result, or press Swap to convert back the other way without re-entering anything.
Why use it
Benefits and common use cases
What this tool is good for, and what it deliberately does not try to do.
Exact, defined factors
Every weight & mass conversion here uses the internationally defined relationship between oz and g, so the answer is as precise as the standard that fixes it rather than an approximation.
The whole category at once
Alongside the g answer you get the same value expressed in every weight unit, so you can find the one you actually need without converting twice.
Private by construction
The arithmetic runs in your browser's own JavaScript. The numbers you enter are never sent to a server — close the tab and they are gone.
Questions
Frequently asked questions
Short, honest answers about quality, limits and privacy.
How many gram are in one ounce?
One oz equals 28.3495 g. Multiply any oz value by 28.3495 to get g — for example, 10 oz = 283.4952 g.
What is the formula to convert oz to g?
g = oz × 28.3495. The page does this multiplication for you and also lists the inverse, 1 g = 0.035274 oz.
Is this weight converter accurate?
Yes. It uses the exact defined factor for oz and g and full double-precision arithmetic. The only rounding is in how many decimals are shown, which you control with the precision menu.
Are my numbers uploaded to a server?
No. The conversion runs entirely in your browser, so nothing you type leaves your device. There is no account, no logging and no network request of any kind.