Sand Calculator for Sandbox
Find out exactly how many bags of play sand you need to fill your sandbox perfectly.
Select Sand Type
Choose the right sand for accurate results
Soft, washed, and child-safe
Density: 95 lb/ft³
Natural feel but requires screening
Density: 93 lb/ft³
Fine and clean but not specifically child-rated
Density: 100 lb/ft³
Using Play Sand — density 95 lb/ft³
Enter Measurements
Fill in all fields to calculate
How to Use
- 1
Enter Sandbox Length
Unit: ft
- 2
Enter Sandbox Width
Unit: ft
- 3
Enter Sand Fill Depth
Unit: in
- 4
Click Calculate
View detailed results instantly
Results are estimates based on standard engineering formulas. Always verify with a professional for large or critical projects.
About the Sand Calculator for Sandbox
Filling a sandbox with the right amount of play sand ensures a safe, fun, and comfortable play experience for children. Our sandbox sand calculator determines the exact volume and number of 50-pound bags of play sand required based on your sandbox dimensions and desired fill depth. Most experts recommend filling a sandbox to about one-third to one-half of its total depth for safe and enjoyable play. Washed, fine-grain play sand is the safest option for children sandboxes as it is free of sharp edges and harmful contaminants. Use this sandbox sand estimator to purchase just the right amount of play sand without over-buying or leaving the sandbox too shallow for digging and building.