What Is a Good Starting Dose for Edibles? Calculator Guide
A good starting dose for edibles is 2.5 mg THC (1 to 2.5 mg if you are new). Here is how an edibles calculator turns that dose into a real piece.
THC Dosage Calculator for Beginners: The Short Answer
Start with 1 to 2.5 mg THC. Use the product label to find THC mg per serving or per mL. Wait 2 hours before a second edible dose. For inhalation, take 1 to 2 puffs and wait 10 to 15 minutes.
What Is a Good Starting Dose for Edibles? Calculator Guide
Dose math for edibles
Read two numbers on the package: total THC mg and servings per package. Divide total THC mg by servings.
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Example: a chocolate bar has 100 mg THC and 10 pieces. 100 ÷ 10 = 10 mg per piece. Cut the piece into quarters. One quarter = 2.5 mg.
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Dose math for oils and tinctures
Find total THC mg and bottle size in mL. Divide total THC mg by mL.
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Example: 30 mL bottle with 300 mg THC. 300 ÷ 30 = 10 mg per mL. A 0.25 mL dose = 2.5 mg. Use a marked syringe.
Dose math for flower
Flower labels list THC percentage. Convert grams to mg first: 1 g = 1000 mg. Multiply by THC % as a decimal.
Example: 0.5 g at 20% THC. 0.5 × 1000 × 0.20 = 100 mg THC in the sample. This is total THC in the flower, not the amount absorbed.
Why edibles and inhalation differ
Edible THC passes through the liver. Effects start in 30 to 90 minutes, peak at 2 to 4 hours, and can last 4 to 8 hours. Inhaled THC reaches the blood in minutes. A second edible dose too soon is a common cause of overconsumption.
Beginner checklist
- Buy products with clear THC mg labels.
- Use a calculator and a marked syringe or a kitchen scale.
- Record dose, time, and effect.
- Check state purchase limits and age rules.
- Keep edibles out of reach of children and pets.
What the calculator cannot tell you
Body weight, tolerance, liver enzymes, and food change the response. A dose that feels mild for one person can feel strong for another. The label gives THC content. It does not give a personal dose.