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.

Table of Contents

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 grams – remember, 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.

Read More About Me

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252 Comments

  1. Dear Emily……When making candy melts with cannabis, do I enter the value of the cannabis to the dosage calculator with the value before or after decarbing, as it is much higher after. I have a Purpl Pro for testing my cannabis, which is not absolutely accurate, but gives me an idea.

  2. Hi Pat. You want to put in the percentage of cannabinoids before decarb. There is an option to select on the calculator that will incorporate the decarb process into the calculation for you.

  3. Is there a group of people that use fresh material for food or health benefits related to eating raw product/plant material?
    Thanks
    Scott

  5. Hi! This is my first time making and eating edible. ( I have smoked a few times here and there before) If I wanted to make Cannabutter and wanted a low dose ( a safe dose) to start off with. What would be the best calculations? I have 8 grams of Bud that has 24%THC and 1% CBD, I plan to use 2 cups of butter and cut them up into doses to put into brownies/cookie recipes with normal butter. What would be the best dose amount PER cookie for a safe dose?

  6. Hi James and welcome to the world of edibles! Starting with a low dose is the best approach when you’re new to edibles. The effects of edibles can be much stronger and longer-lasting than smoking, so start slow and see how your body reacts.

    As a general guideline, a beginner’s dose is often recommended to be around 5-10mg of THC. It’s important to know that everyone’s tolerance is different and the effects can take anywhere from 30 minutes to 2 hours to kick in, so start slow, be patient, and don’t consume more until you’ve fully felt the effects of the first dose, waiting at least four hours. I hope this helps!

    Enjoy your baking adventures, and feel free to reach out if you have any more questions!

  7. Emily,

    If you are using 1 Mill of FECO to make 56 gummies, how does the math work in general? I know it depends on the strength of the dry product, but using generalities of strength, how do I mathematically determine the dose of one gummy.

    Thank You

  8. Hi Foodeefish. If you are using 1ml of FECO, which generally has an average of 750mg THC, and you’re making 56 gummies, here’s how the math would work:
    Divide the total amount of THC by the number of gummies. So, in this case, it would be 750mg divided by 56 which gives you approximately 13.4mg per gummy.

    I hope this clarifies things for you! Enjoy your cooking adventures!

  9. Hi Emily! When using the calculator, how do account for content loss for cannabutter? I used the instant pot method and put in 2lbs/8 sticks of regular butter and got out 1.5lbs/6 sticks after separation/cooling. Still perfectly fine amount, I’m just wondering if I need to worry about that when figuring dosage?

  10. Hi Bebe. Great question! When it comes to calculating dosage, it’s important to note that while you may experience a reduction in the volume of butter after the infusion process (as you’ve noticed), this doesn’t necessarily mean a loss in overall potency.

    In your case, the cannabinoids from your cannabis have been infused into the butter. So even though you started with 2lbs of butter and ended up with 1.5lbs, the total amount of cannabinoids should remain roughly the same. So, for dosage calculations, you can still use the initial amount of cannabis and butter you started with. I hope this helps!