Each Terra Tote contains approximately 30 cubic feet of soil. How many totes you will need depends on the area you have to cover AND the desired soil depth. If you are having problems determining the area you need to cover, check out our Area Calculator tool! You can also use our Garden Soil Calculator to help determine how much soil you will need to purchase. Please note that our totes come in one size. If entering your measurements into the soil the calculator does not give you an even number, you may have to round up to the next quantity. For example, if the calculator indicates you will need to purchase 1.7 bags of soil, you will have to buy 2 totes as we do not break totes for smaller quantities.