Convert GRAMS to OZ, Free
Type any GRAMS value and see the OZ result instantly. No button press needed.
How to convert GRAMS to OZ
One ounce (avoirdupois) is defined as exactly 28.349523125 grams. To convert grams to ounces, divide the gram value by 28.349523125 (or equivalently multiply by 0.035274). This exact relationship is fixed by international definition, making the conversion completely deterministic with no rounding needed until you decide on a display precision. The calculation runs instantly in your browser using pure JavaScript arithmetic.
Grams are the international standard for food weights, postal packages, and laboratory measurements. Ounces persist in the US for food labeling, cooking recipes, and postal weights. The kitchen is where this conversion matters most: a European recipe calling for 200 grams of flour equals about 7.05 ounces. A US recipe specifying 8 ounces of cheese translates to about 226.8 grams. Getting this wrong by a significant amount affects baking results noticeably.
Enter the weight in grams
Type your gram value. Works for small amounts like 5g of spice up to large quantities in the thousands.
Read the ounce result
The ounce equivalent appears instantly: grams / 28.3495. The default shows two decimal places.
Adjust decimal precision
For cooking, 1-2 decimal places is usually sufficient. For laboratory or jewelry work, choose 4+ decimal places.
Reverse if needed
Switch to oz-to-grams mode by entering a value in the ounces field instead.
Frequently asked questions
How many grams is one ounce?
Exactly 28.349523125 grams. In practice this is rounded to 28.35 g for most everyday calculations.
What is 100 grams in ounces?
100 / 28.3495 = approximately 3.527 ounces.
Is a fluid ounce the same as a weight ounce?
No. A fluid ounce (fl oz) measures volume (approximately 29.57 ml). A weight ounce (oz) measures mass. They are only numerically close for water (1 fl oz of water weighs about 1.04 oz).
Is this the same ounce used for gold and silver?
No. Precious metals use the troy ounce, which is 31.1035 grams. The avoirdupois ounce (28.3495 g) is used for everything else including food and postal weights.
What is 200 grams in ounces?
200 / 28.3495 = approximately 7.055 ounces, or about 7 oz.