Sand Calculator
Multiply length × width × depth in feet and divide by 27 for cubic yards. The 1-inch sand bed under a 10 × 12 ft paver patio takes 10 cubic feet, which is 20 bags of 50 lb.
Updated October 15, 2026 · How we calculate
Worked example
The bedding sand under a 10 × 12 ft paver patio, 1 inch deep:
- Area: 10 × 12 = 120 square feet
- Depth in feet: 1 ÷ 12 = 0.0833 ft
- Volume: 120 × 0.0833 = 10 cubic feet
- Cubic yards: 10 ÷ 27 = 0.37 cu yd
- Weight: 0.37 × 2,400 to 2,960 lb ÷ 2,000 = 0.44 to 0.55 tons
- Bags: 10 ÷ 0.5 = 20 50 lb bags (0.5 cu ft)
Source: Caltrans Maintenance Manual, Appendix (2014); Missouri DOT, Highway Maintenance Tables and Conversion Factors
How to choose and how deep
Sand under pavers
Pavers sit on a layer of sand about 1 inch thick, spread over the compacted stone base and left loose until the pavers go down. Our paver calculator works out the sand and the base together.
Source: ICPI Tech Spec 2 (rev. Feb 2020)
Weight
Dry, loose sand weighs 2,400 to 2,960 lb per cubic yard. Damp sand from an open pile weighs more, so a supplier selling by the ton may load more weight for the same volume.
Source: Caltrans Maintenance Manual, Appendix (2014); Missouri DOT, Highway Maintenance Tables and Conversion Factors
Bags
Play sand and all-purpose sand come in 50 lb bags of about 0.5 cubic feet: 54 bags to the cubic yard.
Source: Quikrete play sand (0.5 cu ft, 50 lb)
Quick reference
| Sand | Lb per cubic yard | Tons per cubic yard | Source |
|---|---|---|---|
| Sand (dry, loose) | 2,400 to 2,960 | 1.2 to 1.48 | Caltrans Maintenance Manual, Appendix (2014); Missouri DOT, Highway Maintenance Tables and Conversion Factors |
Questions people ask
How much does a cubic yard of sand weigh?
Dry, loose sand weighs 2,400 to 2,960 pounds per cubic yard, or 1.2 to 1.48 tons. Wet sand weighs more.
Source: Caltrans Maintenance Manual, Appendix (2014); Missouri DOT, Highway Maintenance Tables and Conversion Factors
How many 50 lb bags of sand make a cubic yard?
A 50 lb bag holds about 0.5 cubic feet, so a cubic yard (27 cubic feet) takes 54 bags.
Source: Quikrete play sand (0.5 cu ft, 50 lb)
How much sand goes under pavers?
A bedding layer screeded to about 1 inch, left uncompacted until the pavers are set.
Source: ICPI Tech Spec 2 (rev. Feb 2020)