To calculate THC percentage in an Ohio vape pen, take the total milligrams of THC and divide it by the amount of oil in grams.

THC mg ÷Total oil weight in grams = THC percentage

For example, the Fuzed Blood Orange disposable vape pen has 627.2 mg of THC and .98 grams of oil. 627.2 ÷ .98 = 640, so this vape is about 64% THC.

If the Blood Orange disposable was 1 full gram then there would be 62.72% THC in the device since there is 627.2 mg of THC. It’s easy to calculate THC percentage in 1 gram carts. Just move the decimal point 1 digit to the left.

Many vape pens in Ohio contain .84 grams of oil and hover around 590 mg of THC, which is a 1-day supply for vapes and extracts. 590 ÷ .84 = 702.38, which is 70.238% THC.