How many grains of sand can you fit into a bath tub?

Well google says the avg bathtub is 40-60 gallons, so say 50. And say average, medium-grained sized sand, 0.375 mm in diameter. Allowing a bit for spaces between the grains.... about 9 billion grains!How many grains of sand can you fit into a bath tub?
depends on the size of the bathtub and what type of sand you use =)How many grains of sand can you fit into a bath tub?
A lot. The actual number depends on the size of the bath tub and the kind of sand you use (i.e., you will be able to fit less coarse sand than you would fine sand).

wrinkles