A QP, or quarter pound, is 112 grams of cannabis, which equals four ounces. It sits between an ounce and a half-pound and is a common bulk size for heavy users, growers, and, where legal, resellers. Because it is a quarter of the 448-gram pound the trade uses, the math is clean: 448 divided by four gives you 112 grams.
QP Weight Key Takeaways
- QP = 112 grams: A quarter pound, equal to four ounces.
- Bulk tier: Bigger than an ounce, smaller than a half-pound.
- Clean math: A quarter of the 448-gram trade pound.
- Best value: Larger amounts lower the per-gram cost.
- Weigh carefully: Use a calibrated digital scale after curing.
What is a QP in cannabis terms?
QP stands for quarter pound, a bulk cannabis weight equal to 112 grams or four ounces. It is one of the larger standard sizes, used by frequent consumers, growers measuring a harvest, and licensed resellers. Buying at the QP level almost always lowers the per-gram price compared with smaller amounts, which is why it appeals to anyone who goes through a lot of flower. You can buy THCa flower quarter pounds directly by weight.
What is the full cannabis weight breakdown?
A QP fits into the standard ladder of cannabis weights:
Gram
The smallest common unit, 1 gram.
Eighth (1/8 oz)
3.5 grams, the most popular everyday size.
Quarter (1/4 oz)
7 grams, or two eighths.
Half (1/2 oz)
14 grams.
Ounce (oz)
28 grams, the key reference unit.
Quarter Pound (QP)
112 grams, or four ounces.
Half Pound (HP)
224 grams, or eight ounces.
Pound (P)
448 grams, or sixteen ounces.
How do you accurately weigh a QP?
Accuracy protects buyers and sellers alike:
Use a digital scale with decimal precision
A scale that reads to at least a tenth of a gram gives a reliable measurement.
Account for jar or container weight
Tare the container first so you weigh only the flower.
Weigh after the cure
Cannabis loses moisture as it dries and cures, so weigh once it is finished.
Calibrate your scale regularly
Regular calibration keeps readings honest over time.
Look for consistency across batches
Consistent weighing habits keep your numbers trustworthy.
How many plants yield a QP?
It varies widely, but a healthy plant can easily produce a QP or more:
Genetics are everything
High-yielding strains produce far more than lower-yielding ones.
Environmental control makes the difference
Good light, airflow, and stable conditions maximize yield.
Training techniques matter
Topping and training increase bud sites and overall production.
Choose the right timeline
A longer vegetative stage generally means a bigger plant and harvest.
How much is a QP worth?
A QP’s price depends on quality, strain, cultivation method, local market, and taxes, but as a bulk size it always beats buying the same amount in eighths or ounces on a per-gram basis. Premium indoor flower commands more than value or outdoor grades, and deals or bulk discounts can lower the total. Comparing per-gram prices is the simplest way to judge whether a QP is a good buy for you.
QP Frequently Asked Questions
How many grams are in a QP?
A QP, or quarter pound, is 112 grams, which equals four ounces.
How many ounces are in a QP?
Four ounces, since each ounce is 28 grams and four of them make 112 grams.
Why is a QP 112 grams and not more?
Because the cannabis trade counts a pound as 448 grams, and a quarter of 448 is 112.
Is a QP a good value?
Usually yes. As a bulk size, it has a lower per-gram price than eighths or ounces, ideal for frequent users if you store it well.
How many plants make a QP?
It depends on genetics, environment, and training, but a single healthy plant can often yield a QP or more.
Grow Your Own QP from Strong Genetics
Hitting a QP per plant comes down to genetics and good growing. Start from high-yielding strains on our clone menu, or buy flower by weight in the THCa flower collection.
