The Stadium-Shaped Slab Concrete Volume Calculator helps you estimate the concrete needed for a stadium-shaped slab (a rectangle with semicircles on each end). This calculator requires length A (total length including semicircles), length B (width of the rectangle portion), and slab depth to calculate the area, perimeter, and volume in cubic feet, cubic yards, and cubic metres.
Working in metric? Use the Stadium Concrete Calculator - Metric.
one cubic foot (ft³) = 0.037037037037037 cubic yards (yd³) one cubic foot (ft³) = 0.028316846592 cubic metres (m³)
Length A = 30 feet Length B = 10 feet Depth = 6 inches
Radius = Length B ÷ 2 = 10 ÷ 2 = 5 feet
Area = (Length A - Length B) * Length B + π * Radius² where: Length A is the total length of the stadium, including the semicircles at each end. Length B is the stadium's width and each semicircle's diameter. π = 3.141593 The radius is half of Length B.
Area = (30 - 10) * 10 + π * 5² Area= 20 * 10 + 3.141593 * 25 Area = 200 + 78.54 ≈ 278.54 square feet
Perimeter = 2 * (Length A - Length B) + π * Length B Perimeter = 2 * (30 - 10) + π * 10 Perimeter = 2 * 20 + 31.4159 = 71. 4159 feet
The volume V of concrete is the area multiplied by the depth (converted to feet):
V = A * depth in feet
6 ÷ 12 = 0.5 feet Volume = 278.54 * 0.5 = 139.27 cubic feet 139.27 * 0.037037037037037 = 5.158cubic yards 139.27 * 0.028316846592 = 3.9437
Area: 278.54 square feet Perimeter: 71.42 feet Concrete Volume: 139.3 cubic feet Cubic Yards: 5.16 cubic yards Cubic Metres: 3.944 cubic metres