1 cup of kosher salt (morton) in grams — 240 g.

Why 240 g per cup

Morton kosher salt is denser than Diamond Crystal (240 g/cup) because the flakes are flatter and pack more tightly. By volume it's about 80 % the weight of table salt.

Salt brand matters more than salt brand evangelists realise. Diamond Crystal kosher salt is barely half the weight of table salt per cup (142 g vs 292 g) because the flake structure traps air. Morton kosher sits in between at 240 g/cup. Most recipes don't specify which they mean — when scaling, always convert via weight.

The most accurate way to measure kosher salt (morton)

For recipes where the outcome matters — bakes, doughs, anything leavened — measure kosher salt (morton) on a kitchen scale set to grams. Set the bowl on the scale, press tare to zero, then add until the readout matches the gram value the recipe calls for. This removes the largest source of cup-to-cup variation: how you scoop.

The cup-based numbers on this page assume the “spoon and level” method — fluffing the ingredient in its container, spooning it into the cup, and levelling the top with a straight edge. Scooping directly with the cup packs more in, and can push the gram value up by 20-30 % for fluffy ingredients like flour and cocoa.