Health & Fitness

How to Decide Safe Amount of THC In a Joint

You can delve into the vast cannabis world once you’ve established the milligram range or THC percentage that best suits you. It’s like having a marijuana passport to know your ideal THC dosage. However, finding your dose takes time and effort.

Learn how to find the right dose for you in a joint, how to change the dose gradually, and how various factors can affect the high from cannabis.

What’s the recommended standard dosage of THC?

person smoking

THC is measured in milligrams (mg). THC vape juice, or tetrahydrocannabinol, is the active ingredient in cannabis responsible for the “high.” These standard assists researchers in more accurately designing and interpreting studies. Researchers can more effectively conclude and compare findings from different studies using the same measurement standard. However, there are currently no guidelines on how many units of THC constitute a standard dose.

Cannabis producers and some organizations have their suggestions for how much THC to take. Starting with 2.5 mg of THC, which is one-half of the research standard, is recommended by experts. Significantly, they advise not to exceed 40 mg of THC per day.

However, it’s important to remember that THC levels can vary greatly between products depending on how the cannabis is consumed. Although these products’ labels indicate how much THC they contain, there is no guarantee that this information is correct. 

How many milligrams of THC is in a joint?

If you’re smoking a joint to experience the psychoactive effects of THC, you might be curious about how much of the powerful cannabinoid is in a typical joint. You can find out how to estimate a joint’s THC content in the following section.

How to calculate the milligrams (mg) of THC in a joint?

man lighted cigarette

Let us begin by defining a key term: bioavailability. Bioavailability is the term used to describe the proportionate active effect of any drug or substance that enters the body. All prescription drugs, vitamin supplements, and beverages have an absolute bioavailability when they move through the body. THC has a quantifiable bioavailability based on how much is absorbed by the body instead of how much is in the joint.

Use the following formulas and sample calculations to determine how much THC is in a joint:

The total milligrams of THC is equal to the weight of the joint (in mg) multiplied by the potency/THC percentage.

One gram = 1000 milligrams. 

Using the same 20% THC flower as an example, here is the difference between a half-gram and a full-gram joint:

1000 mg x 0.20 = 200 mg

 is one gram. 

1/2 gram: 500 mg times 0.20 equals 100 mg

The formulas above indicate how much THC is present in a joint but do not indicate how much is absorbed by your body. According to a study, this number will be determined by various factors that vary between individuals. These elements are as follows:

Factors That Influence Your Consumption of THC

person making cannabis joint
  1. Bioavailability

Bioavailability refers to the amount of cannabis that enters the body’s circulation after consumption.

Smoking joints, as opposed to consuming edibles or other cannabis-infused products, is one of the simplest ways to increase THC bioavailability. Because THC is absorbed into the bloodstream when you smoke, it immediately enters your endocannabinoid system and brain. When inhaled, the smoke has the unique ability to cross the blood-brain barrier quickly. 

However, none of this implies that no THC is lost after inhalation. THC bioavailability, according to most studies, is limited to 30%. This varies according to the toker.

The more THC is available in your bloodstream, the stronger your high. A 0.3g joint, for example, contains 20mg THC; thus, 20% provides a mild buzz, 30-40% provides a medium buzz, and 50% is quite potent.

  1. The Smoker’s Physiology

Everyone has a unique physical chemistry. The human body has no universal method to digest or tolerate THC. However, how much THC your body absorbs is determined by the amount of smoke you’ve consumed, the capacity of your lungs, and the amount of THC expelled from the smoke.

THC affects a novice significantly differently than a chronic or persistent user. The more joints you smoke, the higher your tolerance becomes, and thus the more THC your body can tolerate. 

  1. Potency
green plant on brown wooden tray

The amount of THC delivered is determined by how much smoke you inhale from a joint. The more THC you consume, the more you inhale and the stronger the smoke. It is critical to emphasize that consuming all of the THC in the joint is impossible due to loss through combustion, inhalation, and unequal decarboxylation.

  1. Joint Size

The amount of weed in your joint significantly impacts the amount of THC absorbed. The smaller the joint, the less THC enters your system. The greater the availability of THC for consumption, the longer or wider the common.


There might be benefits to using THC if you suffer from a chronic illness. Your healthcare provider can advise you on the appropriate dose if you take THC vape juice. However, there are currently no recommendations for the safest THC dosage for recreational or other medical marijuana. Because everyone responds to THC differently, keeping a journal of your doses and results may be helpful. However, new studies in this field will likely be published soon. 

Significantly, when using cannabis products, especially if you are taking other medications, always remember to consult your doctor first.

Related Articles

Back to top button