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Weed Measurements Explained: Grams, Eighths, Ounces and Pounds
Oct
Cannabis has its own language of weights, and it trips up new and returning buyers alike. This guide lays out every common weed measurement from a gram to a pound, and if you are ready to buy weed by the pound you can see the current range and pricing there. Once you know the ladder and the conversions, working out what is good value takes seconds.
The short version
- An eighth is 3.5 g, a quarter 7 g, an ounce 28 g.
- The whole system is built on the 28 gram ounce.
- A quarter pound is 112 g, a half pound 224 g, a pound 448 g.
- A weed pound is 448 g, not 453.6 g, because the trade rounds the ounce to 28.
- In public you may carry up to 30 g, just over an ounce.
The weed measurement ladder
Cannabis is sold in a standard set of steps. Each one roughly doubles the one before, from a single gram up to a pound. Here is the full ladder with the grams in each and the slang you will hear.
| Amount | Common names | Grams |
|---|---|---|
| Gram | g, dime | 1 g |
| Eighth | eighth, 8th, slice | 3.5 g |
| Quarter | quarter, quad | 7 g |
| Half ounce | half, half-o | 14 g |
| Ounce | ounce, oz, zip | 28 g |
| Quarter pound | QP | 112 g (4 oz) |
| Half pound | HP, half-pound | 224 g (8 oz) |
| Pound | pound, lb, elbow | 448 g (16 oz) |
The three you will use most day to day are the eighth (3.5 g), the quarter (7 g) and the ounce (28 g), all sizes you will find on our cannabis strains page. Everything above the ounce is bulk territory.
Why an eighth is 3.5 grams
An eighth means an eighth of an ounce. An ounce is 28 grams, and 28 divided by 8 is 3.5, so an eighth is 3.5 grams. The whole system is built on the ounce, so once you anchor on 28 grams the rest falls into place: a quarter is a quarter of an ounce (7 g), a half is 14 g, and so on.
Pounds, and why a weed pound is 448 grams
In the cannabis world a pound is counted as 16 ounces, and each ounce is treated as 28 grams, so a pound works out to 448 grams. That is slightly less than a scientific pound, which is 453.6 grams, because the trade rounds the ounce down to a clean 28. When you see a pound of flower quoted, assume 448 grams and 16 ounces.
The 448 versus 453 confusion, settled
This is the single most common point of disagreement in weed measurements, and it is worth being precise about, because you will see both numbers quoted as fact.
There are two systems running side by side.
- The trade system starts from a 28 gram ounce. Sixteen of those is 448 g, four is a 112 g quarter pound, eight is a 224 g half pound. Every number is consistent with every other one.
- The scientific system starts from the real pound, 453.6 g. Divide that and you get an ounce of 28.35 g, a quarter pound of 113.4 g and a half pound of 226.8 g, which listings usually round to 113 and 227.
Both are in circulation and neither is wrong, but mixing them is. If a page tells you an ounce is 28 g and then tells you a quarter pound is 113 g, it has quietly switched systems halfway through, and the numbers no longer add up. We use the trade system throughout this guide, because that is what a 28 gram ounce commits you to.
The practical difference is small. Across a full pound the two systems are about 5.6 grams apart, which is roughly two joints. It matters for arithmetic and for comparing listings, not for what arrives at your door.
Bulk amounts: quarter pound, half pound, pound
Above the ounce, buyers usually move in quarter pounds (112 g), half pounds (224 g) and full pounds (448 g). These are the quantities our wholesale flower tier is built around, and they are where the price per gram drops most.
To put those numbers in everyday terms: a quarter pound is 32 eighths, a half pound is 64, and a pound is 128 eighths or about 448 one-gram joints. A pound is a genuinely large amount of cannabis, which is why it sits in the wholesale tier rather than the everyday one.
How the weights line up with Canada’s legal limit
One number is worth knowing alongside the ladder. Under the Cannabis Act, an adult may possess up to 30 grams of dried cannabis, or the equivalent in another form, in public. That sits just above an ounce, so an ounce is the largest single step on the ladder you can carry with you.
The limit applies to what you have on you in public, not to what you may buy or keep at home, which is why bulk quantities are ordered for delivery rather than carried around. Provinces can set their own rules on top of the federal limit, so check your own province if you are unsure.
How to work out value: cost per gram
The single most useful skill is comparing cost per gram, because it lets you weigh any two options against each other no matter the size. Take the price of the pack and divide it by the number of grams. An ounce is 28 grams, a quarter pound is 112, a pound is 448. Whatever the current prices are, dividing by those gram counts tells you which option is actually cheaper per gram.
As a rule the cost per gram falls as you move up the ladder, and most of that saving arrives early, between the ounce and the quarter pound. Going from a quarter pound to a pound usually saves less per gram than going from an ounce to a quarter pound did, so the biggest win is the first step into bulk rather than the last. The current prices to run that maths on are always shown on the bulk collection and on each product page.
The slang, decoded
Weights come with their own vocabulary, and a lot of it is regional. A few you will run into:
- Zip is an ounce, 28 g. The name comes from the resealable bag an ounce traditionally filled.
- Elbow is a pound, from the abbreviation “lb”.
- QP and HP are simply quarter pound and half pound.
- Dime bag and dub are older street terms named after what they cost rather than what they weighed, which is exactly why they have faded out in a legal market. A regulated retailer sells by weight, so you buy a gram or an eighth, not a named bag.
Which amount should you buy?
If you are trying a new strain, an eighth or a quarter is the sensible test size. If it is something you go through regularly, an ounce usually gives a better price per gram without committing to bulk. And if you are buying for a household, sharing a group order, or ordering through our wholesale tier, the quarter pound, half pound and pound are where the value is.
Storing larger amounts
Buying in bulk only pays off if the last ounce is as good as the first, and that comes down to storage. Keep flower in an airtight container, somewhere cool and dark, and away from the four things that degrade it: heat, light, air and moisture.
Split a large purchase into smaller sealed jars rather than opening the same big container every day, because every opening swaps the air inside. Aim for a stable room temperature rather than a fridge, since fluctuating humidity does more harm than steady warmth. Stored properly, larger amounts hold their quality for months.
The one rule that protects a bulk buy
Split a large purchase into smaller sealed jars instead of opening one big container every day. Every opening swaps the air inside, and air is one of the four things that degrade flower, along with heat, light and moisture.
Buying weed by weight in Canada
Happy Clouds is a Canadian mail-order retailer, so you can order anything from a gram to a pound online for discreet shipping across the country. Shipping is free on qualifying orders, every order earns HAPPYPOINTS, and bulk quantities are priced through our bulk and wholesale range. Cannabis is legal for adults in Canada, and you must be of legal age in your province to order.
Happy Clouds
Canadian mail-order, from a single gram up to a pound, with discreet shipping nationwide, free on qualifying orders, and HAPPYPOINTS on every order. The bulk range is linked at the top of this guide.
Frequently asked questions
Why does flower sometimes weigh a little under what the label says?
Cannabis keeps losing moisture after it is packed, so a jar filled to the stated weight on the day can read a fraction under a week later. Home scales vary too. A small difference is normal. A large one is not, and is worth raising with the retailer.
Does the listed weight include the packaging?
No. The weight is the flower itself, not the jar, bag or tube around it. If you are checking at home, put the empty container on the scale and zero it first, otherwise you are weighing the packaging too.
Do you need your own scale?
Not to order, since you are buying a stated weight. Some people keep one to check a delivery or to split a large purchase into smaller jars. Any small digital scale that reads to two decimal places is enough.
Can you mix strains to make up a larger order?
Often yes. Bulk tiers are usually priced on the total you buy rather than on sticking to one strain, so you can spread a larger order across several. Check the individual listing, because some bulk pricing is set per strain.
Further reading: Health Canada on cannabis in Canada · Cannabis laws and regulations (Government of Canada)
