Shopping for THC flower can be confusing when products are sold in different quantities.
You may see 1g, 3.5g, 5g, 7g, 10g, 14g or 28g listed on product pages, but what do these numbers actually mean?
The answer is simple: these numbers describe the weight of the cannabis flower, not automatically its potency.
For example, 3.5 grams is commonly called an eighth, 7 grams is a quarter ounce, 14 grams is a half ounce, and 28 grams is one ounce.
Understanding flower sizes can help you compare products, evaluate pricing, understand package descriptions and choose a quantity that fits what you’re looking for.
If you’re new to cannabis flower, start with the THC Flower Complete Guide for a broader introduction to flower, cannabinoids, terpenes, cultivation, storage and product quality.
THC Flower Sizes at a Glance
| Flower size | Common name | Ounce equivalent | Best for |
|---|---|---|---|
| 1g | Gram | 1/28 oz | Trying a particular flower |
| 3.5g | Eighth | 1/8 oz | Comparing or regularly buying a cultivar |
| 5g | — | ~0.18 oz | More than an eighth without moving to 7g |
| 7g | Quarter | 1/4 oz | Larger quantity |
| 10g | — | ~0.36 oz | Mid-size flower purchase |
| 14g | Half ounce | 1/2 oz | Larger supply |
| 28g | Ounce / Zip | 1 oz | Full-ounce purchase |
The actual appearance of each quantity can vary because cannabis flowers differ in bud density, structure and moisture content. Two packages with identical weights can therefore look quite different.
What Does 1g of THC Flower Mean?
1g means approximately one gram of cannabis flower by weight.
It is one of the simplest quantities to understand and can be useful when you want to evaluate a particular cultivar without committing to a larger package.
A gram may consist of one larger bud, several smaller pieces or a combination of flower and smaller buds depending on how the product has been prepared. The physical appearance isn’t standardized because individual buds vary considerably in size and density.
Why Choose 1g?
A 1g package can make sense when you want to:
- Try a new cultivar
- Compare different flower varieties
- Examine the aroma and appearance of a particular batch
- Make a smaller purchase
- Avoid committing to a larger quantity
However, 1g doesn’t mean a specific potency level.
Two different 1g flower products can have very different cannabinoid and terpene profiles.
That’s why weight should always be considered separately from cannabinoid concentration.
For more information about what to look for when evaluating flower, read our THC Flower Complete Guide.
What Is 3.5g of THC Flower?
3.5g is one-eighth of an ounce, which is why it is commonly called an eighth.
It is one of the most recognizable cannabis quantities in the U.S. market.
An eighth can contain several smaller buds or a few larger buds depending on the cultivar and how the flower was trimmed.
Why Is 3.5g Called an Eighth?
One ounce contains approximately 28 grams.
Divide 28 grams by eight:
28g ÷ 8 = 3.5g
Therefore:
1 ounce = 28g
1/2 ounce = 14g
1/4 ounce = 7g
1/8 ounce = 3.5g
The term “eighth” therefore refers to the fraction of an ounce rather than the size of an individual bud.
Who Might Choose 3.5g?
A 3.5g quantity can be useful for someone who wants more than a single gram while still keeping the purchase relatively small.
It can also provide enough flower to compare the characteristics of a cultivar over multiple sessions rather than judging it from a single bud.
What Is 5g of THC Flower?
5g is simply five grams of cannabis flower.
Unlike 3.5g, 7g, 14g and 28g, it does not correspond to one of the traditional fractions of an ounce commonly used in cannabis terminology.
Five grams is approximately 0.18 ounces.
This makes it a useful middle quantity for shoppers who want more than an eighth without moving all the way to a quarter ounce.
Why Buy 5g?
A 5g package may appeal to shoppers who want:
- More flower than a 3.5g package
- A mid-size quantity
- More flexibility when comparing price per gram
- A larger quantity of a preferred cultivar
When comparing a 5g product against a 3.5g or 7g product, don’t look at the package price alone.
Calculate the price per gram.
For example:
$30 ÷ 5g = $6 per gram
This gives you a much more useful comparison between different package sizes.
What Is 7g of THC Flower?
7g is one-quarter of an ounce, commonly called a quarter.
The calculation is:
28g ÷ 4 = 7g
Seven grams therefore represents one quarter of a standard 28g ounce.
Why Choose 7g?
A 7g quantity can make sense if you already know you like a particular cultivar and want more than an eighth.
It can also make the price-per-gram comparison more attractive than buying several smaller packages, depending on the products and pricing available.
However, larger quantities are not automatically better.
Flower quality, cannabinoid profile, terpene composition, freshness, packaging and laboratory information remain important considerations.
What Is 10g of THC Flower?
10g means ten grams of flower.
It sits between a quarter ounce and a half ounce:
- 7g = quarter ounce
- 10g = approximately 0.36 oz
- 14g = half ounce
Ten grams isn’t traditionally associated with a specific fraction-based name like “eighth” or “quarter.”
Instead, it is simply a 10-gram package size.
Who Might Choose 10g?
A 10g quantity can be attractive when you want more than a quarter ounce but don’t necessarily want a full half ounce.
As with other sizes, compare the price per gram rather than assuming a larger package automatically represents better value.
What Is 14g of THC Flower?
14g is one-half of an ounce, commonly called a half ounce.
The calculation is:
28g ÷ 2 = 14g
This is one of the traditional cannabis measurements used alongside eighths, quarters and ounces.
Why Choose 14g?
A 14g package may be suitable when you already know the cultivar you’re purchasing and want a larger quantity.
The main advantage is straightforward: you’re purchasing more flower in a single package.
But storage becomes increasingly important as the quantity increases.
If you’re purchasing larger amounts, see our THC Flower Storage Guide for information about protecting flower from excessive light, heat, air and moisture.
What Is 28g of THC Flower?
28g is one ounce of cannabis flower.
In cannabis terminology, an ounce is also commonly referred to as a zip.
The basic conversion is:
1 ounce = 28 grams
And:
28g = 8 × 3.5g
So one ounce can also be described as:
- 8 eighths
- 4 quarters
- 2 half ounces
- 28 individual 1g quantities
Of course, this mathematical comparison doesn’t mean that an ounce will literally contain 28 individual buds or that every bud will weigh exactly one gram.
Bud size varies substantially according to cultivar, density and structure.
Why Choose 28g?
An ounce is a larger quantity and can make sense for someone who has already decided on a particular flower and wants a larger package.
For larger quantities, however, storage and freshness become especially important.
1g vs 3.5g vs 5g vs 7g vs 10g vs 14g vs 28g
Here’s the simplest way to compare the common sizes:
1g
The smallest size covered in this guide.
Good for: testing a cultivar or making a smaller purchase.
3.5g
One-eighth of an ounce.
Good for: exploring a cultivar while purchasing more than a single gram.
5g
A non-standard fractional quantity between an eighth and quarter.
Good for: shoppers looking for a mid-size option.
7g
One-quarter of an ounce.
Good for: buying more of a cultivar you already like.
10g
A mid-size package between 7g and 14g.
Good for: shoppers wanting more than a quarter ounce without going to a half ounce.
14g
One-half ounce.
Good for: larger flower purchases.
28g
One full ounce, also commonly called a zip.
Good for: larger-volume purchasing where permitted and appropriate.
Does More THC Flower Mean More Potency?
No.
This is one of the most important distinctions to understand when comparing cannabis flower sizes.
Weight and potency are different measurements.
A 10g package contains more flower than a 3.5g package, but that doesn’t automatically mean the flower has a higher THC concentration.
For example, imagine two products:
Product A
- 3.5g flower
- 25% total THC
Product B
- 7g flower
- 20% total THC
Product B contains more total flower, while Product A has the higher stated THC concentration.
This is why shoppers should consider both quantity and cannabinoid information.
For products containing THCA, also pay attention to how the product’s cannabinoid information is presented. Our THCA for Beginners Guide explains the distinction between THCA and THC in greater detail.
Does a Bigger Bag Mean Better Value?
Not automatically.
A larger package can sometimes have a lower price per gram, but you should calculate the actual cost.
For example:
| Quantity | Example price | Price per gram |
|---|---|---|
| 1g | $10 | $10/g |
| 3.5g | $30 | $8.57/g |
| 7g | $50 | $7.14/g |
| 14g | $90 | $6.43/g |
| 28g | $160 | $5.71/g |
These are illustrative calculations only, not current SluggersVape pricing.
The important point is that package price alone doesn’t tell you whether you’re getting better value.
Use This Formula
Price ÷ grams = price per gram
This lets you compare different package sizes more objectively.
However, price per gram shouldn’t be the only factor.
A lower-cost product may have a different cannabinoid profile, terpene profile, cultivation method, trimming standard, packaging or laboratory documentation.
Does Flower Size Affect Bud Size?
No.
Package weight and individual bud size are different things.
A 7g package could contain:
- Several large buds
- Many smaller buds
- A mixture of different-sized buds
The same applies to 3.5g, 14g and 28g quantities.
Cannabis cultivars can naturally produce flowers with very different densities and structures. Leafly similarly notes that an eighth can contain different numbers and sizes of buds depending on the flower.
Therefore, don’t assume that a larger package will necessarily contain larger individual buds.
What Should You Check Besides Flower Weight?
Weight is only one part of evaluating cannabis flower.
When comparing products, consider the complete product specification.
1. Cannabinoid Profile
Look at the stated THC, THCA, CBD and other cannabinoid information where available.
Remember that the gram weight tells you how much flower you have, not its cannabinoid concentration.
2. Terpene Profile
Terpenes contribute to the aroma and flavour characteristics associated with cannabis.
A product listing that provides terpene information can give you more insight than a strain name alone.
3. Cultivar or Strain Information
Look at the stated cultivar and its characteristics.
Names can help distinguish products, but they shouldn’t replace batch-specific product information.
4. Laboratory Testing
Where available, laboratory documentation can provide additional information about cannabinoid content and testing parameters.
This is particularly useful when comparing products that appear similar on the surface.
5. Appearance
Flower can vary in:
- Colour
- Density
- Bud structure
- Trichome coverage
- Trim
- Moisture condition
Our Cannabis Flower Anatomy Guide explains the different structures you’ll see on cannabis buds, including trichomes, bracts, pistils and sugar leaves.
6. Storage
Larger quantities require sensible storage.
Excessive exposure to heat, light, air and moisture can affect the condition of cannabis flower over time.
Read our How to Store THC Flower Guide before storing larger quantities.
How to Choose the Right THC Flower Size
There’s no single flower quantity that is right for everyone.
Instead, think about what you’re actually trying to accomplish.
Choose 1g if:
You want to examine or try a particular cultivar without purchasing a larger quantity.
Choose 3.5g if:
You want a traditional eighth-sized package and more flower than a single gram.
Choose 5g if:
You want a middle-sized quantity between an eighth and a quarter.
Choose 7g if:
You want a quarter ounce of a cultivar you’re already interested in.
Choose 10g if:
You want a larger mid-size package without moving to 14g.
Choose 14g if:
You want a half-ounce quantity.
Choose 28g if:
You’re looking for a full ounce and the quantity is appropriate under the applicable rules where you are.
The best approach is to balance quantity, price per gram, cannabinoid information, terpene profile, testing and storage rather than choosing solely based on the largest package.
THC Flower Sizes vs THC Vape Sizes
It’s also important not to confuse flower weight with the numbers used on THC vape products.
A 1g flower package means approximately one gram of dried cannabis flower.
A 1G THC disposable generally refers to approximately one gram of cannabis formulation in the device—not one gram of pure THC. SluggersVape’s existing disposable guide makes the same distinction between capacity and potency.
If you’re comparing flower with vapes, read our THC Vape vs Flower Guide to understand the differences between dried cannabis flower and cannabis vape formulations.
You can also explore our THC Vapes Complete Beginner’s Guide before comparing disposable and cartridge formats.
THC Flower Sizes FAQ
Is 3.5g the same as an eighth?
Yes. An eighth is one-eighth of an ounce and equals approximately 3.5 grams.
Is 7g the same as a quarter?
Yes. Seven grams is one-quarter of a 28g ounce.
Is 14g a half ounce?
Yes. Fourteen grams is approximately one-half of an ounce.
Is 28g an ounce?
Yes. One ounce of cannabis flower is 28 grams.
What is a zip of flower?
“Zip” is common cannabis terminology for one ounce, or 28 grams.
Is 5g an eighth?
No. An eighth is 3.5g. Five grams is simply a five-gram quantity.
Is 10g a quarter?
No. A quarter ounce is 7g. Ten grams is a larger quantity that falls between a quarter ounce and a half ounce.
Does a larger amount of flower mean higher THC?
No. Weight and cannabinoid concentration are separate measurements.
Does 1g mean 1g of THC?
No. One gram refers to the total weight of the flower, not one gram of pure THC.
Final Thoughts: Which THC Flower Size Should You Choose?
Understanding cannabis flower measurements makes it much easier to compare products before purchasing.
The basic conversions are straightforward:
1g = one gram
3.5g = one-eighth ounce
5g = five grams
7g = one-quarter ounce
10g = ten grams
14g = one-half ounce
28g = one ounce
The most important thing to remember is that flower weight does not equal potency.
When comparing THC flower, look beyond the number of grams. Consider the cannabinoid profile, cultivar, terpene information, appearance, laboratory documentation, packaging and storage requirements.
For a complete overview, visit the THC Flower Guide and continue exploring SluggersVape’s cannabis education resources before comparing available products.