how many grams in a cup of buckwheat?

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things people ask

• Does it matter whether I'm measuring raw groats or toasted kasha by the cup?
  Toasting drives off a little moisture and darkens the groats, but the volume-to-weight relationship barely shifts — a cup of kasha lands within a few grams of the 170 g raw figure. What does change weights significantly is cooking: simmered buckwheat roughly triples in volume and drops well below 170 g per cup, so always scale recipes by the dry weight.
• I want to grind buckwheat groats into flour at home — does 1 cup of groats give 1 cup of flour?
  No. One cup of raw groats (170 g) grinds into roughly 1.25 to 1.5 cups of flour because milling fluffs the particles up. If a recipe calls for a cup of buckwheat flour (around 120 g), grind about 130 g of groats and sift. Working by weight on both sides of the grind avoids the volume drift entirely.
• How does a cup of buckwheat compare to a cup of oats or rice in a porridge or pilaf?
  Buckwheat groats are denser than rolled oats (a cup of oats is closer to 90 g) but lighter than long-grain rice (around 185 g). For a one-cup pilaf serving four, you'll want roughly twice the water by volume and about 15 minutes of simmering — less than rice, more than quick oats.

related conversions

• Buckwheat: tablespoons to grams
• Buckwheat: teaspoons to grams
• Buckwheat guide