Hello and welcome! This calculator does the cannabis math for you, so you can find the exact THC and CBD potency of your homemade edibles in just a few seconds. Start in Step 1 below by entering the details of your 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 This Calculator Works section below.
📲 Step 1: Calculate Your Batch Potency
|
Starting Amount of Cannabis Product in Grams
Enter the weight of the flower or product you infused, in grams.
|
|
|
THC/THCA %
Enter the percentage from your product label, e.g. 15 for 15%.
|
|
|
CBD/CBDA%
Enter the percentage from your product label, e.g. 5 for 5%. Leave 0 if none.
|
|
|
Type of Oil or Alcohol Used
Pick what you infused into. This sets the absorption rate used in the math.
|
|
|
Amount of Oil or Alcohol Used
How much oil or alcohol you used to make the full batch.
|
|
|
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
|
How the two steps work together: Step 1 above tells you how strong your whole infusion is. Step 2 below splits that strength across the servings in your recipe, so you can see how much THC and CBD ends up in a single serving.
📋 Step 2: Dose Your Recipe
In this section, you can add the infusion or extraction you made in step one directly into any recipe.
|
How much of your infusion does this recipe use?
How much of that batch goes into this specific recipe.
|
|
|
Total Number of Servings In your Recipe
How many pieces or portions your recipe makes. Used to find the dose per serving.
|
Potency Results Per Serving
Edibles can take 30–120 minutes to take effect.
Estimates only — actual potency varies with your ingredients and method.
|
Total mg of THC in entire recipe
|
145.83
|
|
Total mg of CBD in entire recipe
|
36.46
|
|
Total mg of THC per serving
|
14.58
|
|
Total mg of CBD per serving
|
3.65
|
Please note: This calculator and the information on this page are provided for educational purposes only and are not medical advice. Results are estimates, not lab-tested values. Consult a qualified healthcare professional with any questions about cannabis use.
Table of Contents
How This Calculator Works
This calculator estimates potency using a few straightforward steps. First, it converts the THC and CBD percentages of your flower into milligrams, since one gram of flower at 1% THC contains about 10 mg of THC.
It then accounts for how efficiently your chosen fat or alcohol absorbs those cannabinoids during infusion, different bases (butter, coconut oil, MCT, alcohol, and so on) pull cannabinoids out of the plant at different rates, which is why the type you select changes the result.
If you check the decarboxylation box, it also factors in the natural loss that happens when raw cannabinoids convert into their active form.
Finally, it divides the total across your batch and then across the number of servings in your recipe, so you get an estimated milligram amount per piece.
Why Your Real Results May Vary
These numbers are careful estimates, not lab results. Real-world potency depends on things this calculator can’t see: the exact cannabinoid content of your specific flower, how thoroughly you decarboxylated, your infusion time and temperature, and how evenly everything is mixed into your final recipe.
Treat the result as a well-informed starting point rather than an exact figure.
How to Find Your THC Percentage
The accuracy of your estimate depends most on one number: the THC percentage you enter.
If you bought your flower from a licensed dispensary, this is usually printed right on the label or package, often shown as “Total THC.” If you’re working with flower that didn’t come with a label, you won’t know the exact figure — but most dried cannabis flower falls somewhere in the range of roughly 10% to 25% THC.
When you’re unsure, it’s reasonable to estimate toward the lower end, since underestimating potency is far easier to adjust for than overestimating it.
One quick measuring tip: your cannabis amount is entered in grams, and there are 28 grams in one ounce — so an eighth of an ounce is about 3.5 grams, and a quarter is about 7 grams.
A Worked Example
Let’s walk through a real batch so you can see how the numbers come together. Imagine you start with an eighth of an ounce of flower (about 3.5 grams) that tests at 15% THC, and you infuse it into 1 cup of coconut oil. You then use that entire batch of infused oil to make a recipe with 48 servings.
Here’s what the calculator does with that: the 3.5 grams at 15% works out to about 525 mg of THC in your flower. After accounting for how efficiently coconut oil absorbs cannabinoids, your finished batch of oil contains roughly 434 mg of THC total. Divide that across 48 servings, and each serving comes out to about 9 mg of THC — which the calculator labels “Mild.”
If you split that same batch into fewer, larger servings, each one would be stronger; into more servings, each would be milder. That’s the whole idea: the number of servings you choose is what sets your dose per piece.
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.
Frequently Asked Questions
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.
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 account for the loss of decarboxylation (because it has already occurred). If you have both numbers, simply run the calculation twice, once for each option.
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.
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.
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.
Everyone is different, and this is general educational information rather than personalized medical advice. The right amount is unique to each person, since we all have endocannabinoid systems that affect our tolerance. 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. Many people choose to start low and go slow, often beginning with the microdosing method — for example, some begin with a small amount such as 1-3 mg of THC and adjust from there. If you are feeling lost, you can also check out my beginner’s guide to using cannabis. If you want to know you’re consuming an exact dose, my most popular edible product, Micro Gummies, can help you get started.
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.
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 caution and use the right amount of cannabis before getting started. Seek professional medical advice if needed.
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.
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!
Shop My Most Popular Products
Shop with Emily
Nourish Your High Masterclass
Shop with Emily
Shop Now: Curb THCV Sugar-Free Gummies
Shop with Emily
Shop Now: Bliss Sleep Gummies
Shop with Emily
Shop Now: Bliss Caramels
SAVE THIS GUIDE 💌
Don't lose your spot! Let me email this post to you so you can come back to it time and time again!
I have a dinner party coming up and I’m serving jerk chicken for 14 guest. Is 180 mg of Canna oil too much for roughly 14 pieces of chicken?
Oh my gosh, that sounds amazing Trenton! 180/14 will give you about 13mg THC per person. If that is the only thing you’re infusing for the meal, I think that may be just fine! You could always ask your guests ahead of time if 13mg THC is OK for them.
Hello, Emily. Beginning my journey with edibles and tinctures. I decarbed 28g of flower estimated to be around 15%. Added just enough 190 proof alcohol to just cover the plant material. My plan is to evaporate the alcohol to make feco. From there, I was thinking of adding organic vegetable glycerin to make dosing easier and a bit more palatable. Might even add some berry flavoring, as well. How do I determine the correct amount of glycerin to use in order to keep it potent? THC percentage? I’d like to keep the dosage down to just a few drops instead of teaspoons. Any help and suggestions would be gladly appreciated.
Hey Tommy! First, input your values into the calculator and get the final milligrams of THC. For this example, let’s say you ended up with 1,000mg of THC. If you added 30mL of vegetable glycerine (the size of a typical bottle of CBD oil, approximately 1 ounce. Perfect if you have a 1mL dropper to use.) You would divide the 1,000/30 and see you get 33.33mg THC per mL. From there, evaluate if that is the correct dose for you. If it’s too high, add more glycerine to dilute it out. Too low? Add less glycerine 🙂 I hope this explanation helps!
Emily your recipes are the best especially gummies thank you so much you make it so easy
You are so kind, thanks so much for the feedback, James 🙂
Can this be used to determine the amount for milk or cream? I tried plugging in the example numbers you gave in your infused cream recipe but couldn’t get 25mg per serving.
Hey Lisa! I apologize, but I don’t have an option for milk or cream at this point (they all have different fat contents which would make this super difficult). Since this is just a guestimating tool anyway, I would just pick an oil option and go from there.
Hi Emily
Using your calculator just double checking I mixed
16 gram tapioca powder
3 gram CBD oil with 1.3 Mct mixed well
Mixed all together real well then put in bullet mixer
CBD was 800 mg per gram on potency
Your input to my batch much appreciated I now have 16 g of beautiful fine powder with a potency per gram or tablespoon?
Hey Ken! Thanks for using the calculator. If I understand you correctly, you have 3 grams of CBD oil with 800mg per gram for a total of 2,400mg CBD in the entire batch. If you want to break it down per gram, it would be 2,400/16 = 150mg CBD per gram. If you want to break it down by teaspoon, you will need to know the total volume and then divide that into 2,400. I hope this helps!
I am new to this. On average how strong do you wan to make the cannibutter? I have 7 grams, THC 18.64%, CBD 0.05%
My recipe will make 12 servings.
How much butter should I add to the flower in order to use 8 Tbs of butter (24tsp) and have the correct potently. I know everyone’s tolerance is different but on average what do you think?
Hey Genice! If you don’t know your tolerance, 5mg-10mg THC per serving is an excellent place to start. I like to work backward with this. If you want 10mg THC per serving, and your recipe makes 12 servings, you will want 120mg THC in the whole batch. You have flower that is 18.64% THC which means that each gram contains 186.40mg THC. So in this example, adding one gram of flower to the 8 tablespoons of butter will give you slightly more than what you’re looking for, about 14mg THC per serving. I hope this helps!
I have a bottle of THC tincture have dropper is .5mg. =3mg. of THC.
How do I measure out the right amount to add to the brownies. What would be my starting point to make brownies. I have never tried too bake with THC, so to say I need help is an understatement. Thank you for your help.
Hello Sue! In this case I would work backwards – how many milligrams of THC do you want each brownie to have? If you’re new to THC, 5mg is a good place to start. In that case, there are 9 brownies in my recipe. You would need 45mg THC in the total batch (45mg THC/9 brownies= 5mg THC per brownie). If what you’re saying is that a half-dropper contains 3mg THC, then you would want to add 15 half droppers, or 7.5 full droppers. I hope this helps 😀
Hi Emily! I love this calculator and use it for everything, thank you so much for creating this! I was wondering if you have anything similar to this for honey infusions? I see you have a nice recipe on here, but I was wondering if there was a way to measure the THC contained in honey infusions? Thank you again!
Hey Liezl, thank you so much for the kind words. Unfortunately, I do not have an option for honey. In my honey recipe, I currently recommend not straining the kief or ground cannabis out, so you can calculate the total mg of THC just by calculating the potency of the starting material you used. I hope this helps!
Hi Emily, I love the dosage calculator. I wasn’t able to put in a half cup, I was trying to put 1.5 in for my oil amount but it didn’t allow fractions. Am I doing anything wrong?
Thank you! I love your site xo
Hey Sherri, thanks so much for your kind words. The calculator doesn’t take fractions, but if you put it in as a decimal (either 0.5 or 1.5 – depending on what you need) it works ?
I love your site and that you have the entire family involved. Living the dream. My ? why do you use a teaspoon as a measuring tool.. not sure about other seems so confusing having to covert tsp to a actual amount that any recipe would call for?
Hey Canna Mike, thanks so much, we are definitely living the dream. I wanted to break it down to the smallest measurement so it would be easier to calculate single servings. What other measurement mark would you like to see added?
thank you for this calc. it;s very useful for my recipes and for proper dosing for my wife friends and I.
I think it would be even more useful if you could allow decimals in the amounts. For instance, I often get 1.5 cups tincture from my 2 cups batch or maybe 1.25 cups from 1.5 cups, etc…. as some is lost in the biomass.
thanks again
Hey DC – thanks for using the calculator! You can absolutely use decimals in the fields for calculations 🙂
I started this recipe and wouldn’t you know it I forgot to decarb in step 1. Well I got to thinking that if I already had the cannabis in a jar with alcohol ( a story for a different post). So what I’m doing is a controlled heating of the jar in water at a steady 200 degrees F and I think I can decarb and reduce the liquid at the same time and then proceed with the other steps. Please tell me I didn’t mess up to bad with my first time trying FECO production.
Yes Sean, you should be able to achieve decarboxylation at the end. Good luck!
hello! i made 1 cup of coconut oil infused with 20g of cannabis. the thc is 22% and it made 150 gummies. how much thc is in each serving? and how much is a serving for 1in gummies?
Hi there, Nicole. Did you use the entire 1 cup of coconut oil in the recipe, or just a 1/2 cup as called for? Using the calculator, the total THC in the 1 cup of coconut oil would be 3190.46mg. If you used half a cup that would be 1595.23mg. If you made 150 gummies out of that, you would have 10.63mg per gummy 🙂
Love your site, and this recipe! It’s almost the same one I’ve been using. Love your exact directions, Thank you!
The only difference is in blooming the gelatin. When I bloom the gelatin, I have so much more volume than if I don’t, does blowing matter?
Hey Connie, thanks for your kind words; I’m happy you like the gummy recipe. The expanded volume is just fine; in fact, that’s exactly what you want! It usually comes out in one solid lump when I add it to the mix 🙂
Dear Emily,
I made a tincture of 14 g (1/2 oz) 18% thc. How much is a good dosage in tsps for this. I was vaping but now am going to start with edibles. Thank you
I have read your dosing section and still do not completely understand as I am having a hard time feeling anything. I seem to feel best at 2 tsp.
Hello JoAnn! Have you considered evaporating any of the alcohol in your tincture? This will help eliminate some of the burn, and it will concentrate your tincture, meaning you will need to take less overall. Here’s my evaporation guide to get started. Just keep in mind that your total mg (14x.18×1000=2,520mg) will remain the same, regardless of how much alcohol you evaporate out.