Ounces to Grams
Craft materials are sold by weight far more often than by volume, and the two are not interchangeable. A gram is a gram everywhere, but an ounce of wax and a fluid ounce of wax are different things entirely. This converter handles the weight units exactly, and the notes explain where weight and volume part company.
Convert a measurement
Enter your own figure, pick the units on each side, and the result is worked out as you go. Nothing is stored.
All units at once
The same quantity written every way this page knows, so you do not have to convert twice.
Nothing entered yet, so the table below uses Ounces (oz) as an example.
| Unit | Value |
|---|---|
| Milligrams (mg) | 28,349.52 |
| Grams (g) | 28.3495 |
| Kilograms (kg) | 0.0283 |
| Ounces (oz) Starting value | 1 |
| Pounds (lb) | 0.0625 |
What this assumes
- One ounce is exactly 28.349523125 grams and one pound is exactly 453.59237 grams.
- Weight ounces and fluid ounces are different measures. A fluid ounce is a volume, so converting between them needs the density of the material.
- Wax, resin and clay are all sold by weight, and their density changes the volume you get, which is why the calculators on this site ask for weight wherever the recipe allows it.
Every figure on this page is worked out from grams, and the page states the factor rather than hiding it.
Questions people ask
How many grams are in an ounce?
One ounce is 28.3495 grams, so 100 grams is about 3.53 ounces. For yarn, this is why a 100 gram skein is described as 3.5 ounces in the United States.
Is a fluid ounce the same as an ounce?
No. A fluid ounce measures volume and an ounce measures weight. Water is close enough that a fluid ounce weighs about 1.04 ounces, but wax at a density around 0.9 weighs noticeably less, which is exactly why candle recipes should be calculated in weight.
How many grams are in a pound?
Exactly 453.59237 grams. In practice 454 grams is close enough for buying materials, though not for a recipe where accuracy matters.
Why do I need weight rather than volume for resin?
Resin and hardener are mixed by volume or by weight depending on the product, and the two parts usually have different densities. Follow the ratio the manufacturer specifies and use the same measure for both parts. A weight ratio read as a volume ratio will not cure correctly.