Cannabis Potency Chart for Beginners: THC and CBD Ranges

Cannabis Potency Chart for Beginners

A potency chart lists THC and CBD numbers by product type. THC percentages run 10% to 30% in flower and 60% to 90% in concentrates. Edibles use milligrams, not percentages. A standard serving in most US legal states is 10 mg THC. Federal law defines hemp as cannabis with no more than 0.3% delta-9 THC on a dry weight basis.

Cannabis Potency vs Terpenes: A Budtender's Pick at Pop's

THC Ranges by Product Type

• Flower: 10% to 30% THC. Most mid-range products test 18% to 22%.
• Pre-rolls: same range as flower, listed as total THC.
• Vape cartridges: 60% to 90% THC.
• Live resin and rosin: 65% to 90% THC.
• Hash and kief: 20% to 60% THC.
• Tinctures: 1 mg to 50 mg THC per mL.
• Edibles: 2.5 mg to 10 mg per serving, up to 100 mg per package.
• CBD flower: 10% to 20% CBD, under 0.3% delta-9 THC.
• CBD isolate: about 99% CBD.

Milligrams vs Percentages

Percent shows the share of product weight that is THC. Milligrams show the actual amount. One gram of flower equals 1,000 mg. At 20% THC, that gram holds 200 mg of THC. Smoking and vaping transfer an estimated 30% to 60% of that total. Edible labels skip the math and print milligrams per serving. Check the serving count on the package.

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How to Read a Label

• Total THC: delta-9 THC plus THCA times 0.877.
• Total CBD: CBD plus CBDA times 0.877.
• Serving size and servings per package.
• Harvest or batch date.
• Lab name and test date.
• Terpenes in mg per gram.

Beginner Doses

• Inhaled: 1 mg to 2.5 mg THC per puff. Wait 10 to 15 minutes.
• Edibles: 1 mg to 2.5 mg THC. Wait 2 hours before the next dose.
• Tincture: 1 mg to 2.5 mg under the tongue. Onset takes 15 to 60 minutes.
• CBD: 10 mg to 25 mg is a common start. Clinical dosing data is limited.

Why Numbers Vary

Labs use different testing methods. Potency drops with heat, light, and air. Store flower in a sealed container at 60 F to 70 F. Tolerance shifts the response over weeks. A 20% flower may feel mild to a daily user and strong to a first-timer.

cannabis potency chart for beginners

Ratio Products

Ratios compare THC to CBD. A 1:1 product holds equal amounts. A 20:1 label can mean 20 parts CBD to 1 part THC, or the reverse. Read the milligram line, not the ratio. Ratios describe the product, not the effect.