Weed measurements: gram, eighth, quarter, half and zip
A chart of cannabis weights: how many grams are in an eighth, a quarter, a half and an ounce, what a zip is, and how weights relate to legal limits.
Key points
- An eighth is 3.5 grams, a quarter is 7, a half is 14 and an ounce is 28.
- A zip is an ounce.
- State possession limits are written in ounces or grams, so the chart helps you read them.
Cannabis flower is sold in fractions of an ounce: a gram, an eighth (3.5 g), a quarter (7 g), a half (14 g) and an ounce (28 g), which is also called a zip. An eighth is the most common size on a dispensary menu.
Weed measurements chart
| Name | Grams | Share of an ounce | Also called |
|---|---|---|---|
| Gram | 1 g | 1/28 | A g |
| Eighth | 3.5 g | 1/8 | — |
| Quarter | 7 g | 1/4 | A q |
| Half | 14 g | 1/2 | Half ounce |
| Ounce | 28 g | 1 | Zip, o |
| Quarter pound | 113 g | 4 ounces | QP |
| Pound | 454 g | 16 ounces | — |
These are the rounded figures used at the counter. The names all come from dividing an ounce: an eighth is one eighth of an ounce, a quarter is one quarter, and so on.
Is an ounce 28 grams or 28.35?
How do weights relate to legal limits?
States write possession and purchase limits by weight, usually in ounces. A limit of one ounce is about 28 grams, or eight eighths. California is an example of a state that writes its limit in grams: adults 21 and over may possess 28.5 grams of flower and 8 grams of concentrate.
Limits vary a great deal and often differ for flower, concentrates and edibles. Find your state on our cannabis laws by state pages before you buy.
How are other products measured?
Not everything is sold by the eighth. Pre-rolls and concentrates are sold by the gram or part of a gram. Edibles are measured by the THC they contain, in milligrams, not by their weight.
Washington is one example of how edibles are regulated: the state limits each serving to no more than 10 milligrams of THC and each package to 100 milligrams.
Common questions
How many grams are in an eighth?
3.5 grams. An eighth is one eighth of an ounce.
How many grams are in a quarter?
7 grams, which is two eighths.
How many grams are in a half ounce?
14 grams, which is four eighths.
How much is a zip of weed?
A zip is an ounce: 28 grams, or eight eighths.
How many eighths are in an ounce?
Eight.
Sources and further reading
Kush is for adults 21+. This guide is educational; product rules and testing requirements vary by state. Our editorial standards & corrections policy.
