Landscape Rock Calculator
Calculate decorative landscape rock, river rock, or boulders needed for gardens and yards. Get tons, cubic yards, and estimated cost.
πͺ¨ Landscape Rock Calculator
Results
Volume25.00 cu ft
Volume0.9 cu yd
Weight1.2 tons
Estimated Cost$60.19
π‘ How to Calculate Landscape Rock
Landscape rock is sold by the ton or cubic yard. Different rock types have different densities: river rock weighs about 1.3 tons per cubic yard, lava rock is very light at 0.5 tons, and dense flagstone weighs about 1.5 tons per cubic yard.
A typical decorative rock bed is 2β3 inches deep. For weed suppression under rock, install landscape fabric first. Order 5β10% extra for irregular shapes and settling. For large areas, bulk delivery is more cost-effective than bagged rock.
A 10Γ10 ft rock bed at 3 inches deep with river rock: 25 cu ft = 0.93 cu yd Γ 1.3 tons/yd = 1.2 tons. At $50/ton, that is about $60 in material.