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How Much Weed Fits in a Joint?

how much weed fits in a joint

In all the years I’ve smoked, I never actually thought about how much weed fits in a joint.

Sure, I’m generally aware of how much bud I used and how much I have left. But I’d never done the math to figure out exactly how many grams of marijuana fit in a joint. And knowing how much pot I could put in each paper would mean I’d know exactly how long each gram would last.

I started by looking online. I love math, but Google’s easier.

A statistical analysis from drug policy researchers estimates the average joint includes 0.32 grams of marijuana. But a survey conducted by High Times puts the average closer to 0.75 grams.

With so many smoking styles, pot densities, and paper sizes, there’s no easy answer to “How much weed fits in that?” But as a marijuana blogger and former calculus teacher (unrelated), I couldn’t take “there’s no easy answer” for an answer… that would be too easy.

So I found the most common rolling paper sizes (and a few not-so-common ones) and set out to mathematically determine just how many grams are in a joint.

A Quick Note About the Maths

Jump ahead to the results if you don’t care about how I mathed.

The amount of marijuana that fits in a joint can be calculated using some fairly simple geometry.

You just need to know the dimensions of the rolled joint then factor out the space lost at the bottom of the joint (especially if you use a filter/roach). I demonstrate this in the expert graphic below.

marijuana preroll filter cone

To keep calculations simple, if not scientific, I estimate that 15% of the maximum volume of the cone is automatically lost when rolling a joint due to three factors:

  • the filter/cone (or roach)
  • the space that is lost where you overlap and seal the paper
  • and the fact that your weed isn’t packed in perfectly – it needs a little room to breathe

Of course, knowing the amount of available space is only half the battle. The amount of marijuana needed to fill that space will depend on the density of the bud. For the sake of consistency, let’s assume one gram of weed fills a joint rolled with 1 1/2″ rolling paper (if you’re stocked up on a particularly dense strain from your local Boulder dispensary, you may be able to fit a little more than my estimates).

I gloss over a few additional steps to speed things along and avoid overwhelming the math averse, but the final equation to determine how much weed fits in a joint will look something like this:

Mass (marijuana) = πr2(h/3) * 2.43

(Where ‘r’ is the radius of the joint once rolled, and ‘h’ is the height (or length) of the joint.)

We’re finally ready to measure how much weed is in a joint. While these estimates can help you plan how any joints your remaining weed will fill, keep in mind these are just estimates. And if your maths can beat up my maths, please share in the comments.

raw classic rolling papers

Amount of Weed That Fits In a Joint (by Size of Rolling Paper)

Single Wide

Paper Dimensions: 2.75” x 1.4”
Radius of cone when rolled into a joint: 0.2”

How much weed can fit in a single wide? 0.28 grams

Perfect for solo joints or a joint shared between 2-3 beginners.

1 ¼ Raw Cone Rolling Paper

Paper Dimensions: 3.1” x 1.8”
Radius of cone when rolled into a joint: 0.32”

How much weed can fit in a 1¼ Raw Cone? 0.81 grams

One of the go-to rolling paper sizes, 1 1/4″ papers are big enough to share with 2-3 friends, but small enough that an experienced cannabis consumer could roll a pinner for solo use.

1 ½” Rolling Papers

Paper Dimensions: 3.1” x 2.4”
Radius when rolled into a joint: 0.36”

How much weed fits in a 1½ rolling paper? 1 gram

Best saved for social settings when you can share… maybe if you’re an experienced consumer with a high tolerance looking to fade the day.


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Double Wide

Paper Dimensions: 3.1” x 3.0”
Radius when rolled into a joint: 0.43”

How many grams fit in a double wide joint? 1.46 grams

Perfect for rolling “fatties” for a long smoke session with multiple friends.

King Size

Paper Dimensions: 4” x 2”
Radius when rolled into a joint: .29”

How much fits in a King Size Raw rolling paper? 0.86 grams

A longer, narrower joint with enough weed to get you and a few friends high.

Cheech & Chong Big Bambu Giant Rolling Paper

cheech and chong giant rolling paper

Big Bambu is the second album from Cheech & Chong. And, the original release included a giant rolling paper. Just for fun, I wanted to see how much weed it would take to fill it.

With dimensions of approximately 24” x 11”, a joint rolled with the Big Bambu paper would have a whopping 52.6 cubic inches of space to fill.

That translates to 154.7 grams of marijuana in a Big Bambu joint!

unrolled cannabis joint

If you’re trying to pack the most weed into a single joint, wider papers are likely your best bet (unless you can get your hands on a Big Bambu giant rolling paper). If you love smoking but hate how fast you run through your weed, consider smaller papers that reduce the total cannabis you can fit in each joint.

And if you love joints but hate having to roll them yourself, pick up a sativa, indica, hybrid, or caviar pre-roll from your favorite Boulder recreational marijuana dispensary. And because cannabis dispensaries carefully measure out precisely how much weed is in every pre-roll or cone they fill, you’ll always know exactly how much you’re getting.


Browse our selection of strain-specific and infused pre-rolls.


Karing Kind Is Boulder’s First Recreational Marijuana Dispensary

We strive to offer a top-tier experience every time you enter our store. Our extensive menu of popular and hard-to-find strains, award-winning budtenders, incredible deals, and the lowest marijuana tax rate in the state make us the perfect Colorado cannabis destination.


Karing Kind is located just off of US-36, one mile north of Broadway, open DAILY from 9am to 10pm.

While we carry a variety of strains, concentrates, edibles, salves and tinctures, inventory and stock levels fluctuate from week to week. Check our menu and follow us on Twitter for an up-to-date list of edibles, concentrates and buds available.


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