THC Calculator

THC Calculator

Table of Contents

  • THC Calculator Introduction

  • THC Calculator
  • Math Behind the THC Calculator

Use our THC Calculator to calculate the approximate THC potency percentage of your homemade cannabis edible.

We all know that too much or too litte THC can take you from a place of fun and enjoyment to dissapointment. It is better to learn from a place fun and ejoyment – that’s why I use tCheck – to ensure the my homemade edible THC potency is accurate and consistent.

Cannabis Product in Grams

(Can be flower, wax, oil, etc)

Cups of Oil, Alcohol, or Fat

(Butter / Lecithin) For Infusion*

Total mg of THC

Total mg of CBD

Total mg of THC per tablespoon

Total mg of CBD per tablespoon

Creating Portions/Servings

In this second section, you can add the infused oil you made in step one directly into any recipe.

Tablespoons of oil in your recipe
Servings in your recipe
Total mg of THC in entire recipe

Total mg of CBD in entire recipe

Total mg of THC in per serving

Total mg of CBD per serving


Wanna know the math behind the THC Calculator?

Get out your calculator and follow these steps to calculate the potency of your edible.  All you need is some basic math skills and odds are, if you cook, bake or buy cannabis, you’ve picked up all the math and conversions you’ll need, regardless of the grade you got in high school algebra!

Step 1: Determine how much cannabis you’ll be using in your infusion in grams. Multiply the total grams by 1000 to get the miligrams of total flower used.   Ex. Marge used 30 grams of weed in her infusion.  30 x 1000 = 30,000 miligrams.

Step 2: Divide by the % of THC in the strain.  If you’re unsure, you can use an average of 15% THC.  Ex. Marge is using a bomb ass strain that is 16.1% THC.  16.1% is 0.161 x 30,000 = 4830mg THC in your infusion.

Step 3: Next, figure out how much base ingredient was used in the infusion.  Measure in cups.  Ex. Marge used 2 cups of coconut oil to make this infusion.


THC Calculator

Step 4: Now, divide the amount of your total infused ingredient by the amount you used in your specific recipe.  So, the total mg of THC divided by the recipe portion.  Ex. Marge is using a 1/2 cup of infused coconut oil in her cookie recipe, so 4830mg THC divided by 1/2 cup is 4, so 4380mg of THC divided by 4 is 1207.5 mg of THC in the recipe.

Step 5: How many portions will you make from your recipe?  Take the total mg THC in the recipe and divide it by the number of servings.  Ex. Marge makes a batch of 30 cookies with her 1/2 cup of infused coconut oil.  So she divides 1207.5 by 30 cookies =40.25.  Thus each cookie will have approximately 40.25mg of THC.