Are you working to try and calculate the amount of THC or CBD in your homemade cannabis creations? If you know the potency of your flower and how much you used, I can help with the math! Use my free edible calculator to help you guesstimate the potency of your edible recipes, topicals, and other homemade creations. 

A picture of Emily Kyle with a calculator and text that says edible dosage calculator for edibles and topicals.

Article Features

  • A free tool to help you estimate the potency of your edibles
  • Accounts for the loss associated with decarboxylation and your infusion or extraction material
  • Hate the math? Want to make it easy? Skip the hard work, order high-quality cannabis products from my shop, and have them delivered straight to your door – now shipping across the US!
A picture of Emily Kyles Bliss Products.

📲 Use The Calculator Here

Step 1: Calculate Potency For the Entire Batch

In this first section, you can calculate the potency of your entire batch of an infused product, such as cannabutter or cannabis oil.

This large batch can later be used in your recipe using the second section of this calculator.

If you’re not sure what information to put here, scroll down and read the How to Use This Calculator section below.

Starting Amount of Cannabis Product in Grams
THC/THCA %
CBD/CBDA%
Type of Oil or Alchol Used
Amount of Oil or Alcohol Used in Cups
Account for the loss associated with Decarboxylation?
Check this box if you decarbed your product and want to account for the natural loss associated with the process.

Potency Results For The Entire Batch

Total mg of THC
2800
Total mg of CBD
700
Total mg of THC per teaspoon
29.17
Total mg of CBD per teaspoon
7.29

Step 2: Creation Portions/Servings

In this section section, you can add the infusion or extraction you made in step one directly into any recipe.

Number of Teaspoons Used in Your Recipe
Total Number of Servings In your Recipe

POTENCY RESULTS PER SERVING

Total mg of THC in entire recipe
145.83
Total mg of CBD in entire recipe
36.46
Total mg of THC in per serving
14.58
Total mg of CBD per serving
3.65
A picture of a white calculator and a gummy bear edible.

How to Use This Calculator

While a calculator is no replacement for lab testing, this tool will help you get a guesstimate of the potency of your cannabis infusions and extractions.

Unlike other online calculators, this calculator hopes to provide more accuracy by accounting for the losses associated with decarboxylation, infusion oils, or extraction solvents.

Before using this calculator, you will need to know two things:

  1. The amount of cannabis you are putting into the recipe in gramsremember, there are 28 grams in one ounce
  2. The percent of THCA / THC or CBDA / CBD present in your material – you can input other cannabinoids here if desired

If you have these numbers available, you can get started with the calculator below; the results are highlighted in pink.

Why You Will Love This Tool

Hello and welcome to my dosage calculator designed to help you estimate how much THC or CBD is in your edibles and homemade recipes. 

If you’re like the members of my Well With Cannabis Community – chances are you love making your own cannabis-infused edibles! 

Not only can you save money when you make incredible recipes at home, but you can also control the ingredients and strength of your edibles.

But how exactly do you determine the potency of your edibles? 

If you know the cannabinoid content of your material and how many grams of weed you’ve used, you can use this handy edibles dosage calculator to do the math for you!

This edibles calculator will then help you determine your own edibles’ CBD or THC content based on the number of servings made.

Not only does this help you determine the THC potency of your homemade marijuana edibles, but it also helps you avoid a dose that is too high, which could result in unpleasant side effects.

A picture of a white calculator and a gummy bear edible.

Frequently Asked Questions

What if I don’t know how much cannabinoids are in my material?

This is the hardest part for many people! If you purchased cannabis flower from a licensed dispensary, that flower should be accompanied by lab testing, which shows the percent of THC or CBD in the flower. Unfortunately, different labeling regulations do not make this information universal. If you grew your own cannabis at home, knowing the potency of THC or CBD will be impossible without lab testing. You can, however, research strain guides that provide a general idea of the total cannabinoids in a specific strain.

Which number should I enter THC or THCA?

If you’re working with dried cannabis flower that has not been decarbed, you will be inputting the value as THCA and checking the checkbox to account for the loss of decarboxylation if you decarb. Suppose you are working with a prepared cannabis product that already has THC present because it has already been decarbed. In that case, you will enter the value as THC and not check the checkbox to associate for the loss of decarboxylation (because it has already occurred). If you have both numbers, simply run the calculation twice, once for each option. 

How do I calculate the dosage for concentrates?

If your concentrate already comes with a milligram dosage on the label, you do not need to use this calculator. Simply divide the total THC milligrams by the final servings in the recipe you made. For example, if you have a concentrate labeled with 750mg of THC for the entire syringe and add that syringe to a cookie recipe that makes 24 cookies, you would use the following equation: 750/24 = 31.25mg THC per cookie.

Why are there different values for different solvents?

Great question! We are using different values to account for extraction efficiency. For example, olive oil will have a different extraction efficiency than coconut oil. A fat-based product will have a different level of efficiency than alcohol, which is what we are trying to account for here.

Does it matter what type of butter I use?

If you’re calculating the THC or CBD dosages for a cannabutter recipe, it shouldn’t matter whether you use regular butter or unsalted butter. What will matter is the amount of butter you use. 

What is a good dose to start with?

The correct dosage is unique to each person, as we all have endocannabinoid systems that control our tolerance level. If you have done the math above to calculate the total mg of THC but still feel unsure where to start, check out my guide to dosing edibles safely and effectively. I recommend starting with the microdosing method. As a good rule of thumb, low doses of 1-3 mg THC are a good place to start. If you are feeling lost, you can also check out my beginner’s guide to using cannabis. If you’re feeling and need to know you’re consuming an exact dose, my most popular edible product, Micro Gummies, can help you get started. 

What if I don’t feel the effects of edibles?

A segment of the population reports feeling no effects from cannabis consumed in edible form or only when a very high dose is consumed. This can depend on a variety of factors, including your individual metabolism, what you’ve eaten, the decarboxylation process, and the potency of edibles consumed. If you do not feel the effects of edibles despite consistent doses and correct time intervals, check out this guide. Ultimately, you may need to explore more efficient ways to consume cannabis, such as cannabis-infused oil used as sublingual tinctures. 

What if I consume too much THC?

My goal in providing this calculator is that you can avoid consuming too high of a THC dose. Consuming too much THC is uncomfortable and can alter your ability to perform basic functions. Adverse effects may include dry mouth, racing heart, and even a panic attack. That is why it is important to exercise a side of caution and use the right amount of cannabis before getting started. Seek professional medical advice if needed.

Do you have other calculators?

I have had requests for a topical dosage calculator and a tincture calculator. Still, this calculator here can work and is a great option for calculating total THC for both tinctures and topicals. 

Where can I learn more?

This calculator is for educational purposes only, but if you are looking for the best way to take your cannabis education to the next level, my Edibles Made Easy Course was designed for you! This course can transform any home cook into a cannabis chef in a few simple steps. Consider it your complete marijuana handbook for the kitchen!

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About Emily

Hi, I’m Emily Kyle and I teach people just like you how to use cannabis to find joy, enhance productivity, improve relationships, and naturally support your overall health and wellness.

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252 Comments

  1. Hello Emily,
    Great site and the cannabutter then cookies I made we wonderful. I do have a question, I start with a cup of butter before the infusion process. After straining I have 6.5 ozs left, where does it all go?

    Thank You
    PG

  2. Hello Philip, thanks so much for the kind words, I am so glad your cannabutter and cookies turned out good 😀 Great question; it goes two places. First, when making cannabutter, water and milk solids in the butter are evaporated and removed, which can account for up to a 20% loss in volume. Second, the flower can soak up a lot of the liquid, so depending on how tightly you strain, it may be caught up in the leftover pulp. Starting with clarified butter will help avoid this!

    I also see you are already a member of my private Well With Cannabis Community, feel free to share this comment there as well to see if you get more responses from the other members ?

  3. Why would you need to check the box for decarboxylation loss? The THC percentage of your flower has already been calculated by accounting for this loss (THCa x 0.877 + THC). So if you input this THC number and check the decarb box, you are essentially accounting for decarboxylation twice. It only makes sense to check the box if you’re inputing THCa percentage of the flower.

    Also, how did you determine the loss of THC for each infusion liquid?
    Thanks

  4. Hi Jordan. Our next update will include language to read as THCA/THC for users to select the option they need. Not everyone uses products purchased from a dispensary that automatically accounts for that conversion, so the option is best left to the user.

  5. Hi. If I want to make cookies that calls for one stick of butter. Would I use all of the cannabutter or would I only substitute a few teaspoons in the recipe?

  6. Hey Kelly. That is totally up to you and how strong you want each cookie to be. If you want it super strong, use the whole stick, and if you want it less potent, you can use just a few teaspoons or tablespoons. If you’re unsure about individual dosing, this dosing guide may help!

  7. Hey Emily,
    I’ve been here to use this calculator many times now and just wanted to say thank you for putting together such a useful tool.

  8. Hello Taiga, thank you so much for the kind words, I am so glad you’re enjoying the calculator 😀

  9. I’m trying to calculate the dosage content and the calculator doesn’t seem to be working for me. I’m sure I’m doing something wrong but here are the details:

    I used 21 g of flower to make four sticks of butter. But only used two clicks in the recipe. So I’m thinking that would be 10.5 g used.

    The flower is 27% THC content and 1% CBD content.

    I used two sticks of butter, or one cup.

    It yielded 63 mini brownies. The batter was about 1.5 teaspoons each.

    When I enter these numbers it says each portion has a THC con tent of 89, which does not sound right at all. What am I doing wrong?

  10. Hey John. When I put in 10.5 grams of flower at 27% THC content with 1 cup of butter, without accounting for decarboxylation of infusion loss, I get 2835mg THC. Which is accurate with the math. 27% THC of 1 gram = 270mg THC. 270×10.5 = 2835. If you click to add in the loss for decarb and infusion you get 2209 mg THC. From there, you divide that by 63 for your total servings which leaves you with 35mg THC per mini-brownie. I hope this helps!