River rock calculator
Area shape
Rectangle / square
Circle
I know the square feet
Length
ft
Width
ft
Diameter
ft
Area
sq ft
Rock depth
in
About twice the size of the stones
Rock size
Small, ¾–1½ in (2 in deep)
Medium, 1½–3 in (3 in deep)
Large, 3–5 in (4–5 in deep)
Picks a typical depth; you can still change it
Extra for waste
%
5–10% covers spills, settling and uneven ground
River rock weight
tons/yd³
Typically 1.3–1.4
Price per ton (optional)
$
You'll need
Free calculator by Backyard Numbers ↗