Scientific Edibles Calculator






Scientific Edibles Calculator | Precise THC Dosage & Potency Tool


Scientific Edibles Calculator

Determine high-precision THC dosage for homemade infusions and baked goods.


The total weight of the cannabis flower used in the recipe.
Please enter a positive weight.


The potency percentage listed on your lab results or estimated.
Percentage must be between 0 and 100.


The molar mass conversion (87.7% is scientific standard for THCA to THC).
Enter a valid percentage.


How much THC successfully transfers into your oil/butter (typically 70-90%).
Enter a valid percentage.


The total number of cookies, brownies, or doses in the batch.
Must be at least 1 serving.


Dosage Per Serving
0 mg
Total Potential THC in Flower:
0 mg
Total Decarbed & Infused THC:
0 mg
Loss During Process:
0 mg

Potency Loss & Distribution

Visualization: Total Capacity vs. Active Cannabinoids vs. Single Dose Ratio.


Serving Variation Servings Potency (mg/serving) Strength Category

What is a Scientific Edibles Calculator?

A scientific edibles calculator is a specialized tool used by chefs, medical patients, and home enthusiasts to determine the precise milligrams of THC in homemade cannabis-infused foods. Unlike simple estimates, a scientific edibles calculator accounts for the chemical conversion that occurs during heating, known as decarboxylation, and the realistic loss that occurs during the fat extraction process.

Using a scientific edibles calculator is essential for ensuring safety and consistency. Without it, homemade edibles can vary wildly in potency, leading to experiences that are either ineffective or uncomfortably strong. Whether you are using flower, trim, or concentrates, this tool provides a data-driven approach to dosage.

Many people believe that 1 gram of 20% THC flower equals 200mg of THC in the final brownie. This is a common misconception. A scientific edibles calculator corrects this by applying the 0.877 molar mass ratio and infusion efficiency factors, providing a much more accurate final number.

Scientific Edibles Calculator Formula and Mathematical Explanation

The math behind cannabis infusion is rooted in chemistry. The primary formula used by our scientific edibles calculator involves three distinct stages: Potential THCA, Decarboxylation Conversion, and Extraction Efficiency.

The core formula is:

Total Mg = (Weight in g × 1000) × (THC% / 100) × 0.877 × Efficiency%
Variable Meaning Unit Typical Range
Weight Total mass of flower used Grams (g) 1g – 100g
THC% Laboratory tested potency Percentage (%) 10% – 30%
0.877 Molar mass of THC/THCA Ratio Constant
Efficiency Fat-solubility transfer rate Percentage (%) 70% – 90%

Practical Examples (Real-World Use Cases)

Example 1: The Standard Batch

Suppose you have 7 grams (a “quarter”) of flower tested at 18% THC. You plan to make 24 cookies using butter, with an estimated infusion efficiency of 80%. When you input these figures into the scientific edibles calculator, the math works as follows: 7,000mg × 0.18 = 1,260mg THCA. Applying the 0.877 conversion gives 1,105mg THC. After the 80% extraction efficiency, you have 884mg total. Divided by 24, each cookie contains approximately 36.8mg of THC.

Example 2: Small Batch High-Potency

If you use 3.5 grams of 25% THC flower for just 12 brownies with a high-efficiency coconut oil infusion (90%), the scientific edibles calculator shows: 3,500mg × 0.25 × 0.877 × 0.90 = 690.6mg total. Divided by 12, each brownie is a potent 57.5mg.

How to Use This Scientific Edibles Calculator

  1. Enter Flower Weight: Weigh your cannabis using a digital scale. Input the value in grams.
  2. Input Potency: Find the THC percentage from the packaging. If unknown, 15% is a safe average for mid-grade flower.
  3. Set Decarb Efficiency: Keep this at 87.7% for the most scientific accuracy (conversion of THCA to THC).
  4. Estimate Extraction: If using butter, 75-80% is typical. Coconut oil often hits 85-90%.
  5. Define Servings: Enter the exact number of pieces you will cut the final product into.
  6. Review Results: The scientific edibles calculator updates instantly to show mg per serving.

Key Factors That Affect Scientific Edibles Calculator Results

  • Decarboxylation Temperature: If the temperature is too low, the THCA won’t convert; if it’s too high, the THC degrades into CBN. This significantly alters the scientific edibles calculator output.
  • Fat Type: Saturated fats like coconut oil and clarified butter (ghee) bind to cannabinoids more efficiently than vegetable oils.
  • Lecithin Addition: Adding soy or sunflower lecithin can increase bioavailability, effectively making the scientific edibles calculator results “feel” stronger.
  • Surface Area: Grinding flower to a medium-fine consistency increases surface area for extraction, boosting the efficiency percentage.
  • Moisture Content: Wet flower hinders the infusion process, leading to lower actual potency than predicted by a scientific edibles calculator.
  • Infusion Time: While more time usually means better extraction, excessive time (over 4 hours) can result in more chlorophyll and plant waxes without extra THC.

Frequently Asked Questions (FAQ)

Is the scientific edibles calculator 100% accurate?

It provides a highly accurate mathematical estimate based on chemical constants, but home variables like oven cold spots can cause slight variances.

Why is the number 0.877 used in the scientific edibles calculator?

THCA loses a carboxyl group (CO2) when heated. Since THCA has a higher molar mass, the resulting THC is approximately 87.7% of the original weight.

What if I am using concentrates instead of flower?

For concentrates like wax or distillate, set the weight to grams and use the specific THC% (often 70-90%). Efficiency is usually higher (95%+) for concentrates.

Can I use the scientific edibles calculator for CBD?

Yes! The conversion factor for CBDA to CBD is similar (0.877), making this scientific edibles calculator versatile for all cannabinoids.

Why does my infusion feel weaker than the calculator says?

Individual metabolism (first-pass effect in the liver) can change how you feel, even if the scientific edibles calculator is perfectly accurate.

Does the type of butter matter?

Yes, clarified butter (ghee) has higher fat content and less water, which improves extraction efficiency compared to standard butter.

What is a safe starting dose for beginners?

Most experts suggest 2.5mg to 5mg for a first-time user. Use the scientific edibles calculator to ensure your servings match this range.

How do I calculate for “trim” or “shake”?

Trim usually has lower THC, typically between 5% and 10%. Adjust the percentage in the scientific edibles calculator accordingly.


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