Last updated August 19, 2026 Weed Measurements Explained: Eighths, Quarters, Halves and Ounces Common weed measurements are fractions of an ounce expressed as convenient gram amounts: an eighth is 3.5 grams, a quarter is 7 grams, a half ounce is 14 grams, and an ounce is usually treated as 28 grams. These terms describe the weight of cannabis flower—not its potency, quality, effects, or legal status. The same weight vocabulary… Read more