How Much THC is in a Joint?

Raw weed flowers with a small joint roll on a paper rack attached to a carton box

If you’re like most stoners, you’ve probably wondered just how much THC is in your joint at one point or the other. For most people, this question pops up when they take a hit from a joint and they can feel the good stuff beginning to take effect.

On the other hand, some THC consumers are more interested in the science of things and want to know how much THC they are taking in when they smoke a joint.

Regardless of why you’re wondering how much THC is in a joint, we’ll help you find the answers you’re looking for.

In this blog post, we explore the average amounts of THC you can expect in a joint. We also share some insight into how much THC your body actually absorbs from the joint, what affects this number, and how to calculate the amount of THC in a joint.

So, let’s jump into it.

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Key Takeaways

  • Joints can contain varying amounts of THC depending on factors like the size of the joint, THC levels in the flower, and the manufacturer. On average, the typical joint contains between 50 and 150mg of THC, but this number can go as high as 200mg.
  • Delta 8 joints typically contain between 100 and 200 mg of delta 8 THC, while HHC joints can contain between 70 and 90% THC. THCA joints, on the other hand, can contain up to 200mg of THC, since THCA is a precursor to THC.
  • It is possible to calculate the amount of THC in a joint by weighing the flower, checking the percentage of THC in the product from the certificate of analysis of the brand, and then multiplying the weight of the joint by the THC percentage. However, bioavailability affects the total amount of THC absorbed, and factors like the composition of the joint can also affect the amount of THC eventually absorbed.


How Much THC is in a Joint?

First off, you should know that everyone rolls a joint differently. After all, most veteran smokers believe that each joint they roll (and only their joint) is a masterful work of art without any comparison. Therefore, it may be impossible to give an exact number for the amount of THC in a joint.

However, the good news is that we can provide you with estimates.

On average, the typical joint contains between 50 and 150mg of THC. However, in some cases, this number may go as high as 200mg. With pre rolls, you don’t have to bother so much about calculations, as the experts would have done all the heavy lifting for you.

The amount of THC in the average blunt has improved significantly since the 1970s, as blunts usually had only 10mg of THC then.


How Much THC is in a Delta 8 Joint?

Generally, most delta 8 joints contain between 100 and 200mg delta 8 THC. Of course, this number may vary depending on the size of the blunt and several other factors. Delta 8 and delta 9 gummies are a whole different story though.

Check out this guide on using delta 8 cartridges.


How Much THC is in a HHC Joint?

HHC joints are still relatively new on the market. So, there’s still not a whole lot of information about them, including their THC content. However, we know that HHC joints generally contain different amounts of THC, depending on the specific manufacturer.

Nonetheless, most manufacturers claim that their HHC blunts contain between 70 and 90% THC. Then again, most of these claims have not been independently verified. So, we recommend using HHC with caution.


How Much THC is in a THCA Joint?

Most THCA joints do not contain a lot of THC in themselves, as they have their THC levels must not exceed 0.3% by dry weight to stay within the limits of the 2018 Farm Bill. However, their THCA purity levels can go up to 97%!

Since THCA is a precursor to THC, and will convert to THC upon the application of heat, THCA joints can contain as much as 200mg. Sometimes, higher.


How Much THC is in a Typical Joint?

The average THC in a joint hovers anywhere between 50 to 150mg.


How to Calculate the Amount of THC in a Joint

If you’re wondering if it’s possible to calculate the amount of THC in a joint you roll, the answer is yes. But first, you’ll need some tools:

  • A calculator
  • A pen and paper
  • A kitchen scale

Once you have all these materials, you’re set to go. Here’s what you need to do:

  • First, weigh your rolling paper and the filter together. Then write down this number. Or you can zero it out on the kitchen scale.
  • Next, roll your joint.
  • Once your joint is ready, set it on the scale and read the weight.

If you zeroed out the initial weight of your rolling paper and filter, then the reading on the scale is the weight of your flower. If you didn’t, then all you need to do is subtract the weight of the rolling paper and filter from the weight of the rolled up joint.

  • Next, go to the certificate of analysis of the brand you purchased your hemp flower from and find out the percentage of THC in the product.
  • Finally, multiply the weight of your joint by the THC percentage to get the total weight of THC in the joint.

Here’s the formula:

Weight of joint (in milligrams) x THC percentage = Total weight of THC in the joint (in mg)

For example: 650mg x 0.19 = 123.5mg of THC.

However, you should note that the specific amount of THC you calculate in your joint is not the same amount that eventually makes it into your body. This is because of a concept known as bioavailability.

Bioavailability refers to the proportionate active effect of any drug or substance that you introduce into your body. It is essentially your body’s absorption limit, as your body is unlikely to absorb all of the available compounds in any given substance.

From prescription medications to vitamin supplements, and food and beverages, these substances have specific bioavailability when they enter and circulate through your body. As a result, once your body has absorbed all it can, it pushes out the remaining as waste. THC is no different.


Factors That Affect the Total Amount of THC Absorbed

Several factors can affect the amount of THC your body eventually absorbs when you smoke a joint:

  • Composition of the joint, i.e., ratio of THC to CBD, other cannabinoids, and compounds.
  • The amount of smoke you actually inhale into lungs — mainstream smoke vs. sidestream smoke.
  • Bioavailability.


Ways to Influence the Amount of THC Consumed

There are several ways you can influence the amount of THC you consume when you smoke a blunt. Here are some:

Percentage of THC

Your manufacturer’s certificate of analysis (COA) should provide you with this information. Generally, the higher the percentage of THC in your product, the higher the amount of THC that you’re likely to consume per hit. So, if you want a mellow experience, a product with a lower percentage of THC is ideal.

The Size of the Joint

Generally, a larger joint means you have more flower in your wrap, which translates to more THC. So, if you want to consume more THC per joint, consider rolling bigger joints. Of course, a smaller joint means less THC.

Inhalation Technique

Your inhalation technique plays a pivotal role in determining how much THC you consume during a smoke sesh. As a rule of thumb, if your puff technique is inefficient, you’ll be wasting a significant amount of the cannabinoids that are supposed to give you the effects of THC.


THC in Joints: FAQs

What Percent of THC is in a Normal Joint?

The average percentage THC in a normal joint hovers between 20 and 30%, depending on the manufacturer and the size of the joint.

How Much THC is in a Joint?

One answer does not fit all when it comes to how much THC is in a joint. However, you should typically expect to find between 50 and 200mg of THC in a joint.

What Percent THC Should Pre Roll Be?

The average percentage of THC in a pre roll is around 25%.

How Big is a 1g Joint?

The size of a 1g joint may vary depending on the size of the rolling paper and how tightly you pack it. However, the average length is usually between three and four inches and less than a half-inch diameter.

How do you Save the Rest of a Joint?

If you want to save the rest of the joint for later, you’ll first have to extinguish it completely. Then, place it in an airtight container to preserve its freshness and potency.


Final Thoughts

We hope that this article has given you some insight into how much THC the average joint contains. However, you should note that the amount of THC in a joint is not a reflection of how much THC you inhale or the amount your body eventually absorbs. Nonetheless, knowing how much THC is in a blunt can help guide your dosage and more.