How to Calculate Cannabis Dosage | Pop's Cannabis

How to calculate cannabis dosage

Start with the package label. Find the total THC and CBD in milligrams and the number of servings. Divide total milligrams by servings to get milligrams per serving. If a package has 100 mg THC and 10 servings, each serving is 10 mg. For a new user, begin with 1 to 2.5 mg THC. For edibles, wait at least 2 hours before taking more. Buy products that state total mg per serving and per package, not just a percentage. That label math is the core of dosing.

cannabis dosing calculator by gram

What to look for on a cannabis label

• Total THC and total CBD in mg. Percentage tells potency, not the dose in a serving.
• Serving size and servings per package. Edibles should state mg THC per serving.
• Product type. Edibles, tinctures, capsules, vapes, and flower have different onset times and durations.
• Batch or test date and lab name. Cannabinoid content can vary from batch to batch.
• Package limits. In many US recreational markets, a single edible serving is capped at 10 mg THC and a package at 100 mg THC. Medical rules may differ.

How to do the math

Use this formula: total cannabinoid mg divided by number of servings equals mg per serving. For tincture, find mg per mL by dividing total mg by bottle volume in mL. A 30 mL bottle with 300 mg THC has 10 mg per mL. If a dropper holds 1 mL, that dropper is 10 mg. For a 2.5 mg dose, take one quarter of the dropper. For flower, math is less exact. A 20% THC flower has about 200 mg THC per gram. A 0.5 g joint holds roughly 100 mg THC before combustion losses, and sharing changes the per-person amount. Do not assume every puff is equal.

edible dosing chart in mg

Starting dose ranges by experience

• New user: 1 to 2.5 mg THC, or start with CBD or a balanced product.
• Occasional user: 2.5 to 5 mg THC.
• Regular user: 5 to 10 mg THC.
• High tolerance: 10 to 25 mg THC or more, but increase only after waiting.

These bands are general guidance, not medical advice. Body weight, liver enzymes, medications, and prior use change how a dose feels.

How to Calculate THC per Serving in Homemade Edibles

Pitfalls that throw off the math

• Treating a single bite as one serving. One cookie may contain 10 servings.
• Using THC percentage as a dose. Percent is concentration, not total mg.
• Re-dosing too soon. Edibles can take 1 to 2 hours to peak and may last 4 to 8 hours or longer.
• Ignoring CBD and minor cannabinoids. CBD can change the feel of THC, and some products include both.
• Assuming homemade edibles are uniform. Mixing can leave hot spots.
• Combining with alcohol, sedatives, or other drugs. That raises risk.

FAQ

How many mg of THC is a normal dose?

There is no universal normal dose. In US regulated markets, 10 mg THC is often the standard single serving for edibles, but a new user should start well below that, at 1 to 2.5 mg.

How long should I wait before taking more?

For edibles, wait at least 2 hours. For inhaled products, effects are felt within minutes, so wait 10 to 15 minutes between puffs or hits.

Does body weight determine cannabis dose?

Body weight plays a role, but it is not the only factor. Tolerance, metabolism, product type, and liver function matter. Start low and adjust based on your own response.

Can I calculate dose from THC percentage alone?

No. You need total grams or milliliters and total cannabinoid mg. Percentage helps compare concentration, but it does not tell you mg per serving.