Flower to Oil Ratio Calculator

Find the perfect flower-to-oil ratio: grams per cup, mg per ml, and mg per tablespoon.

Flower weight (g)

Oil / butter volume (ml)

240 ml = 1 cup

THC (%)

Solvent

Flower per cup (g/cup)

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Total THC in batch

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THC per ml

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THC per tbsp (15 ml)

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Uses ~88% decarb and solvent infusion efficiency. Common ratios: 7g, 14g, or 28g per cup. See our infusion guide or full edible calculator for servings.

Common flower to oil ratios

7 g per cup — mild (~10–15 mg THC per tbsp with 18% flower)
14 g per cup — medium strength
28 g (1 oz) per cup — strong batch

Making tinctures instead? Try the THC tincture dose calculator.