Kief Dosage Calculator: Accurately Calculate THC Dosage


Kief Dosage Calculator

Accurately estimate the THC dosage per serving when using kief for edibles or infusions. Enter your details below to get started.


Total weight of kief you are using.



Avg. kief potency is 30-60%. Check label if available.


How many portions will the final product be divided into?


Estimated THC per Serving
40.00 mg
400.00 mg
Total THC in Recipe
1000.00 mg
Total Kief Weight

Dosage Visualization

Bar chart showing THC dosage per serving based on the number of servings. 100mg 50mg 0mg 5 Serv. 10 Serv. 20 Serv. 80 40 20

Chart showing how THC dosage per serving changes as the number of servings increases.

What is Kief and Why Is Calculating Dosage Important?

Kief, also known as “dry sift” or “pollen,” refers to the collected resin glands, or trichomes, that fall off the cannabis flower. These trichomes are tiny, sticky crystals that contain a high concentration of cannabinoids like THC and CBD. Because it is a concentrate of these glands, kief is significantly more potent than the raw cannabis flower it came from. While standard flower often has a THC content between 15-25%, kief’s potency can range from 30% to over 70%.

This high potency is why **calculating dosage when using kief** is so critical. A small miscalculation can lead to a much stronger effect than intended, especially for beginners or those with a low tolerance. Using a kief dosage calculator helps ensure a safe, consistent, and enjoyable experience by removing the guesswork. Whether you’re making edibles, tinctures, or simply adding it to a bowl, knowing the approximate THC content per serving allows for responsible consumption. For more details on making edibles, check out this guide to edible potency calculation.

The Kief Dosage Formula and Explanation

Calculating the THC dosage in your homemade kief edibles is a straightforward process based on a simple formula. The calculator automates this for you, but understanding the math helps in making adjustments and appreciating the factors at play. The core formula is:

Dosage per Serving (mg) = (Total Kief Weight (mg) × THC Percentage) / Number of Servings

First, you must convert the weight of your kief to milligrams. Then, multiply that by the THC percentage to find the total milligrams of THC in your batch. Finally, divide by the number of servings to get the dose for each portion.

Variables in the Kief Dosage Calculation
Variable Meaning Unit Typical Range
Kief Weight The total amount of kief being used. Grams (g) or Milligrams (mg) 0.5 g – 5 g
THC Percentage The potency of the kief. Percent (%) 30% – 60%
Servings The number of individual portions the batch is divided into. Count (unitless) 8 – 24
Dosage The final amount of THC in each serving. Milligrams (mg) 2 mg – 50 mg+

Practical Kief Dosage Examples

Here are a couple of realistic examples to illustrate how calculating dosage when using kief works in practice.

Example 1: Making Kief Brownies

You want to make a batch of 16 brownies using 1.5 grams of kief that has an estimated THC potency of 45%.

  • Inputs: Kief Amount = 1.5 g, THC % = 45%, Servings = 16
  • Calculation:
    1. Total Kief in mg: 1.5 g × 1000 = 1500 mg
    2. Total THC in mg: 1500 mg × 0.45 = 675 mg
    3. Dosage per Brownie: 675 mg / 16 servings = 42.19 mg THC per brownie

Example 2: Small Batch of Infused Oil

You have 500 mg of high-quality kief (estimated at 55% THC) and want to make a small batch of infused coconut oil, divided into 20 small capsules.

  • Inputs: Kief Amount = 500 mg, THC % = 55%, Servings = 20
  • Calculation:
    1. Total Kief in mg: 500 mg
    2. Total THC in mg: 500 mg × 0.55 = 275 mg
    3. Dosage per Capsule: 275 mg / 20 servings = 13.75 mg THC per capsule

For more advanced recipes, you might find a cannabis infusion calculator helpful.

How to Use This Kief Dosage Calculator

Using our calculator is simple. Follow these steps for an accurate estimation:

  1. Enter Kief Amount: Input the weight of the kief you’re using. Use the dropdown to select whether you are measuring in grams (g) or milligrams (mg).
  2. Enter Kief Potency: Input the THC percentage of your kief. If you don’t know the exact number, 30-50% is a reasonable estimate for average kief.
  3. Enter Number of Servings: Input the total number of individual portions your recipe will yield (e.g., 12 cookies, 16 brownies).
  4. Review Your Results: The calculator will instantly display the estimated THC in milligrams for each serving. It also shows the total THC in the entire recipe and the total weight of your kief in milligrams.

The results update in real-time as you change the values. You can learn more about general edible dosing with this edible dosage chart.

Key Factors That Affect Kief Dosage

While this calculator provides a strong mathematical estimate, several factors can influence the final potency of your edibles.

  • Kief Quality & Potency: The biggest variable. Potency can range from 30% to over 70% THC. Lighter, golden kief is often purer than darker, greener kief which contains more plant matter.
  • Decarboxylation: This is the process of heating cannabis to “activate” the THCA into THC. Inefficient decarboxylation can result in a less potent final product. Our calculator assumes full activation.
  • Homogenization: How evenly the kief is mixed into your oil or batter is crucial. If it’s not mixed well, you can have “hot spots” with a very high dose and other servings with very little.
  • Extraction Efficiency: When infusing kief into a fat like butter or oil, not 100% of the THC will transfer from the kief to the oil. Losses are common but hard to quantify without lab testing.
  • Individual Tolerance: A 10mg dose can feel very different from person to person based on their metabolism, body weight, and history with cannabis.
  • Serving Size Accuracy: If your recipe makes “about 12 cookies,” but some are much larger than others, the dose per serving will not be consistent.

Understanding these factors is key to mastering the art of calculating THC dosage.

Frequently Asked Questions (FAQ)

1. What’s a good starting dose of kief for a beginner?

For someone new to edibles, a starting dose of 2-5 mg of THC is recommended. Use the calculator to determine how many servings you need to divide your recipe into to achieve this low dose.

2. What if I don’t know the exact THC percentage of my kief?

If you don’t have a lab-tested number, a conservative estimate is best. Kief from average flower (15-20% THC) is often in the 30-40% THC range. High-quality kief can be 50% or more. It’s always better to estimate low and have a weaker edible than to estimate high and have one that is too strong.

3. Is this calculator 100% accurate?

No. This calculator provides a theoretical maximum dosage based on the numbers you provide. It cannot account for real-world variables like decarboxylation loss, incomplete extraction, or uneven mixing. It is an excellent tool for estimation, not a substitute for laboratory testing.

4. Why do my results show grams and milligrams?

Cannabis is typically weighed in grams, but dosage is almost universally measured in milligrams. The calculator handles this conversion for you, as 1 gram equals 1000 milligrams.

5. Can I use this calculator for hash or other concentrates?

Yes, you can. As long as you know the weight of the concentrate and its THC percentage, the formula is the same. Just enter the correct values.

6. How is kief different from regular cannabis flower?

Kief is a concentrate of the cannabis plant’s trichomes, making it much more potent by weight than the flower it came from. Think of it as the “pollen” of the plant, rich in active compounds.

7. Does the type of food I make affect the dosage?

The food itself doesn’t change the total THC, but it can affect absorption. Edibles containing fat (like brownies or cookies) can help with cannabinoid absorption, potentially leading to a stronger perceived effect.

8. How long do kief edibles take to kick in?

Like other edibles, the effects can take anywhere from 30 minutes to 2 hours to begin, with the peak effects occurring even later. Always wait at least two hours before considering a second dose.

Related Tools and Internal Resources

If you found our kief dosage calculator useful, you might be interested in these other resources for your cannabis culinary journey:

  • THC Edible Calculator: A general-purpose calculator for using cannabis flower in your recipes.
  • Decarboxylation Guide: Learn the essential process of activating THC in your cannabis before cooking.
  • Potency Converter: A tool to help you understand the relationships between different cannabinoid measurements.
  • Infusion Calculator: Perfect for accurately dosing your cannabis-infused oils and butters.

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