How many sack of sand gravel in 1 sack of cement?

The typical mix for concrete often uses a ratio of 1 part cement to 3 parts sand and gravel. Therefore, for every sack of cement, you would typically use about 3 sacks of sand and gravel combined. However, the exact amount can vary based on the specific mix design and the desired strength of the concrete. Always refer to specific guidelines for your project for the best results.