One international avoirdupois ounce is exactly 28.349523125 grams — usually rounded to 28.35 g. Eight ounces (half a pound) is 226.8 g, and a full pound is 453.59 g. Recipes, supplement labels and parcel weights cross between ounces and grams constantly, which is why this is one of the most-searched conversions on the web.
The converter below covers eight categories — length, weight, temperature, area, volume, speed, time and data — and shows your value in every unit of the category at once, so 5 oz also shows you pounds, kilograms and even tola (11.6638 g each) without a second search.
How to do it in 3 steps
- Open the faymox Unit Converter and choose Weight.
- Type the value and pick ounce to gram — the answer appears as you type.
- Check the all-units table under the result for the same weight in pounds, kilos and more.
FAQ
How many grams are in a troy ounce?
31.1035 g. Troy ounces are used for gold and silver — heavier than the everyday (avoirdupois) ounce of 28.35 g. Do not mix them up when weighing precious metal.
How many ounces are in 100 grams?
About 3.53 oz. Divide grams by 28.35 to get ounces.
Is a fluid ounce the same as an ounce?
No — a fluid ounce measures volume (29.57 ml US), an ounce measures weight. A fluid ounce of water weighs roughly one ounce, but honey and oil differ.