This is how I do it

Up to 500/600 grams – 15 Quarts (17"L x 11 1/8"W x 6 3/8"H)
Up to 1100/1200 grams – 32 Quarts (23 1/2"L x 16 1/4"W x 6 3/8"H)
Over 1200 grams – 41 Quarts (34 3/4"L x 16 1/2"W x 6"H)