How Much THC Is in a Blunt? Potency & Dosage Breakdown

5 Factors That Influence How Much THC is in a Blunt

• Weed strain. There is a lot of variety in the THC content of cannabis strains. High THC strains can contain up to 35% THC, while mid to low level strains may have between 10 – 18%.
• Weight. A 2-gram blunt contains double the THC of a 1-gram blunt. Some blunts can get as big as 5 grams, but Illinois dispensaries rarely carry those.
• Infusions. Many people now add cannabis concentrates like live resin or THC diamonds to blunts, which increases the potency of these products.
• Blunt wrap. People traditionally roll blunts with tobacco paper, but today, many use hemp wraps. While hemp vs tobacco paper doesn’t change the THC percentage, the experience changes because tobacco papers can create additional feelings of headiness, intoxication, or lightheadedness, which makes the THC feel even stronger.
• The roll. A tight roll on your blunt allows it to burn slowly and evenly, losing less to combustion. A loose, blunt wrap burns faster, so you lose more of the THC in the smoke.

Calculating the THC Potency of Your Blunt with Examples

Legal dispensaries label blunts with the potency of the THC they contain, so you never have to guess at the potency. However, you might also want to do your own calculations.

(THC percentage as a fraction of 100 x Weight in grams) x 1000 = Total THC in milligrams in your blunt​

Depending on how much of the blunt you smoke, you can estimate that you’ll absorb between a quarter and a third of that. Divide your total by how much you smoked, and you’ll have a strong estimate for how much THC you absorbed from the blunt.

For example, let’s look at a 1-gram infused blunt from Nature’s Grace & Wellness with 37% THC.

(0.37 x 1) x 1000 = 370 mg THC in the blunt​

If you smoke the whole blunt by yourself, you’ll take in roughly 123 mg of THC. If you share it with a friend and each smokes half, you’ll take in about 62 mg of THC.

Let’s compare that to a 2-gram blunt from Twenty Twenty with 23% THC flower.

(0.23 x 2) x 1000 = 460 mg THC in the blunt.​

Even though the flower is less potent, the size of the blunt is larger, so there’s more THC total. If you smoked this entire blunt by yourself at once, you would take in around 153 mg of THC, which is a very high dose.

Tips for a Positive Blunt Smoking Experience

1. Start low and go slow. If you’ve never tried a regular or infused blunt, start with a small puff or two and wait to see how you feel. You can always have more, but you can’t have less.
2. Share with friends. The size and intensity of blunts make them ideal for sharing with friends. Passing a blunt around with two, three, or four other people makes the amount of THC you’re absorbing more manageable.
3. Have the right environment. Blunts are strong, and people can have strong reactions. Enjoy a blunt in a calm, safe environment so you can explore how you feel, without the additional stress of crowds or extra noise.
4. Plan accordingly. Blunts should be consumed when you have nothing else to do and nowhere else to be. Don’t drive or attempt to operate machinery after smoking a blunt. Actually, don’t even try to focus!