Weed Potency Calculator (THC/CBD mg per dose)
Calculating your weed potency…
Cannabis Potency Result
Per Dose Potency (mg)
What does this mean?
This estimate is based on the amount and potency of cannabis you enter, minus process losses. Results per dose assume even distribution. Actual effects may vary based on individual metabolism, product type, and consumption method.
Understanding the potency of cannabis products is essential for safe and effective consumption. Whether you’re making edibles, oils, tinctures, or smoking preparations, knowing how much THC and CBD is in each serving helps ensure consistency and predictability. That’s where our Weed Potency Calculator comes in. This tool quickly estimates the milligrams of THC and CBD per dose, accounting for potency, serving size, and preparation losses.
In this article, we’ll explain what the calculator does, how to use it, provide practical examples, and answer the most common questions about cannabis potency.
How to Use the Weed Potency Calculator (Step-by-Step)
Using the calculator is straightforward. Just follow these steps:
- Enter the amount of cannabis (in grams).
Example: 5 grams. - Input THC potency (%).
Typically ranges between 10%–30%. - Input CBD potency (%).
Often found between 1%–15%, depending on the strain. - Choose the total number of servings/doses.
Example: If you’re baking 20 brownies, enter 20. - Select product type.
Options include edible, smokable, oil/tincture, or other. - Enter the estimated loss percentage.
Heat and processing often reduce potency. Commonly set to around 20%. - Click “Calculate.”
The tool will display total THC and CBD in the batch and the per-dose amount. - Optional: Copy or share the results for reference.
Practical Example
Imagine you’re making cannabis-infused brownies with the following inputs:
- Cannabis amount: 7 grams
- THC potency: 18%
- CBD potency: 2%
- Doses: 14 brownies
- Product type: Edible
- Loss factor: 20%
Step 1: Convert cannabis to milligrams
7 grams × 1000 = 7000 mg cannabis.
Step 2: Calculate total THC and CBD before loss
- THC = 7000 × 18% = 1260 mg
- CBD = 7000 × 2% = 140 mg
Step 3: Apply 20% loss factor
- THC = 1260 × 0.8 = 1008 mg
- CBD = 140 × 0.8 = 112 mg
Step 4: Divide by number of doses (14 brownies)
- THC per brownie = 1008 ÷ 14 = 72 mg
- CBD per brownie = 112 ÷ 14 = 8 mg
Final Result: Each brownie contains about 72 mg THC and 8 mg CBD.
This makes it easier to portion responsibly and avoid overconsumption.
Why Use a Weed Potency Calculator?
- Accuracy: Prevents guessing when making edibles or tinctures.
- Safety: Helps avoid consuming too much THC.
- Consistency: Ensures each serving is similar in strength.
- Customization: Adjust potency for individual tolerance levels.
- Versatility: Works for edibles, smokables, oils, and other preparations.
Tips for Better Results
- Always measure cannabis weight with a digital scale for accuracy.
- Know the lab-tested potency of your cannabis if possible.
- Use realistic loss percentages (edibles often lose more potency than smokables).
- Start with smaller doses and increase slowly to test your tolerance.
- Store results safely to track your recipes and experiences.
Frequently Asked Questions (FAQs)
1. What is the Weed Potency Calculator used for?
It estimates how much THC and CBD are in each dose of cannabis products, whether edible, smokable, or oil-based.
2. How accurate are the results?
The calculator provides an estimate based on input values. Real-world potency can vary due to uneven distribution and metabolism.
3. What does the loss percentage mean?
It accounts for cannabinoids lost during cooking, extraction, or burning. For example, edibles typically lose about 20–30%.
4. Can I use this for both THC and CBD?
Yes, the calculator works for both THC and CBD potency in the same batch.
5. How do I know the potency of my cannabis?
Most dispensaries provide lab test results. If not, use average strain data as an estimate.
6. What’s a safe dose of THC for beginners?
5–10 mg of THC per dose is generally considered low and beginner-friendly.
7. Can I calculate potency for oils and tinctures?
Yes. Simply enter the cannabis amount, potency, number of servings, and select “Oil/Tincture” as the product type.
8. Why is it important to divide by servings?
It helps ensure consistent dosing, especially for edibles where effects last longer.
9. What happens if I don’t include a loss percentage?
The results will be higher than what you’ll likely experience, since processing always reduces cannabinoids.
10. Can I use fresh cannabis for the calculator?
Fresh cannabis has higher water content, which may affect accuracy. Dried cannabis is recommended.
11. Does smoking have a loss factor too?
Yes. When smoking, not all cannabinoids are absorbed. Some are lost through burning and exhalation.
12. Can this help me avoid overdosing on edibles?
Yes. Knowing per-dose potency helps you consume responsibly and avoid taking too much.
13. What’s the difference between THC and CBD effects?
THC is psychoactive and produces a “high,” while CBD is non-intoxicating and may help with relaxation, anxiety, or pain.
14. Why does THC percentage vary by strain?
Different cannabis strains are bred for varying cannabinoid profiles, leading to differences in potency.
15. Can I store results from the calculator?
Yes. You can copy or share results directly to keep a record for future use.
16. Do cooking times affect potency?
Yes. Overheating cannabis can degrade cannabinoids and terpenes, lowering potency.
17. Is the calculator useful for microdosing?
Absolutely. It helps create very small, consistent doses of THC or CBD.
18. Can I use it for concentrates like wax or shatter?
Yes, but you’ll need to know the exact potency percentage of the concentrate.
19. What’s the ideal THC-to-CBD ratio?
It depends on personal goals. Balanced ratios (like 1:1) are often used for medicinal purposes, while higher THC ratios are common recreationally.
20. Does everyone feel the same effects at the same potency?
No. Factors like metabolism, tolerance, and body chemistry affect how each person experiences cannabinoids.
Final Thoughts
The Weed Potency Calculator is a practical tool for anyone working with cannabis. Whether you’re a medical patient, recreational consumer, or someone experimenting with homemade edibles, understanding the THC and CBD content per dose is vital for safety and consistency. By entering just a few details—amount, potency, servings, and loss—you can quickly estimate how strong each serving will be.
With this knowledge, you can enjoy cannabis responsibly and confidently, ensuring every experience is as predictable as possible.