A pea gravel calculator estimates the amount of pea gravel needed for landscaping, drainage, and decorative projects. Pea gravel consists of small, rounded stones typically three-eighths inch in diameter, popular for walkways, patios, playgrounds, and garden beds. By entering the area dimensions and desired depth, the calculator determines the total volume in cubic yards and weight in tons. Standard pea gravel depth is two to three inches for decorative applications and four to six inches for drainage or walkway use. The calculator accounts for pea gravel density, which averages about 1.4 tons per cubic yard, ensuring accurate material ordering from landscape suppliers.
Pea gravel offers versatile applications that benefit from precise quantity calculations. A pea gravel calculator helps plan French drain installations, where gravel surrounds the perforated pipe to facilitate water flow. For patio areas, the calculator factors in the base layer and top dressing separately. It accounts for settling, which typically reduces depth by about ten percent over time. Some calculators also estimate the amount of landscape fabric needed underneath the gravel to prevent weed growth. For playground surfaces, the calculator ensures adequate depth to meet safety cushioning standards. Ordering the right amount of pea gravel through a calculator saves money on delivery costs and prevents material shortages.