Grams to Ounces (g to oz) Converter

Grams to Ounces Conversion

Grams are metric while ounces are imperial, so this conversion bridges two systems. It is essential for cooking, shipping small items, and reading nutrition labels that mix both units.

Conversion formula: 1 oz = 28.3495 g — divide grams by 28.3495.

When You Need This

Cooking — recipes that list ounces
Shipping small items — postal rates use ounces
Nutrition labels — values shown in both units
Coffee & spices — sold by the ounce
Product packaging — net weight comparisons

How to Convert

The Conversion Formula

One ounce equals exactly 28.349523125 grams. To convert, divide grams by 28.3495 (or roughly 28). For a quick estimate, divide by 28. To reverse, multiply ounces by 28.3495.

ounces = grams ÷ 28.3495 — for example, 100 g ÷ 28.3495 ≈ 3.53 oz.

Using the Tool

Enter the value

Type the amount you want to convert into the input field.

Read the result instantly

The converted value appears immediately in the second field — no button to press.

Swap or pick any unit

Press the swap button to reverse direction, or open a dropdown to choose a different unit.

Copy the result

Tap the copy icon next to either field to copy the value for your records.

Worked Examples

Grams	Calculation	Ounces
28.35 g	`28.35 ÷ 28.3495`	1 oz
100 g	`100 ÷ 28.3495`	3.53 oz
250 g	`250 ÷ 28.3495`	8.82 oz
500 g	`500 ÷ 28.3495`	17.64 oz

Features & Use Cases

Tool Capabilities

Instant Two-Way Conversion

Results update as you type. Use the swap button to reverse the direction in one click.

Any Unit, Any Pair

Searchable dropdowns let you switch to grams, ounces, pounds, stone, tons, carats and more — not just the default pair.

Copy & Quick Reference

Copy either value with one tap, and check the built-in reference table for common conversions at a glance.

Common Use Cases

Cooking & Recipes

US recipes use ounces; many ingredients are sold in grams. Convert to follow a recipe accurately on a metric scale.

Shipping & Postage

US postal rates are based on ounces. Convert your gram package weight to ounces to pick the correct rate tier.

Nutrition Labels

Labels often print serving sizes in grams and ounces. Convert to verify portions against your tracking app.

Coffee & Spices

Specialty coffee and spices are often sold by the ounce. Convert from grams to compare quantities and prices.

Runs in your browser: All calculations happen locally on your device. Nothing is uploaded — fast and private.

Frequently Asked Questions

How many grams are in an ounce?

One ounce equals 28.349523125 grams, usually rounded to 28.35 g.

How do I convert 100 grams to ounces?

Divide by 28.3495: 100 ÷ 28.3495 ≈ 3.53 oz.

Is the ounce the same everywhere?

This tool uses the avoirdupois ounce (28.35 g) for everyday weights. The troy ounce (31.10 g) is used only for precious metals.

Why use 28 for quick mental math?

Dividing by 28 instead of 28.3495 is close enough for kitchen estimates, with about a 1% difference.

How many ounces is 500 grams?

500 ÷ 28.3495 ≈ 17.64 oz, just over one pound (16 oz).

Is the first-class mail limit really 3.5 oz?

In the US, a first-class letter is often limited around 3.5 oz (≈99 g). Always check current postal rules.

Grams to Ounces