Maple Syrup — Cups to Grams Conversion 1 cup of maple syrup = 322 grams. 0.25 cups80.5 g0.5 cups161 g0.75 cups241.5 g1 cups322 g1.5 cups483 g2 cups644 g3 cups966 g4 cups1288 g Open the Cooking Converter for more ingredients