The Oval Shaped Slab Concrete Volume Calculator provides quick and accurate calculations for an oval concrete slab. You can determine the area, perimeter, and concrete volume needed by entering the major and minor diameters (longest and shortest axes) along with slab depth. The tool calculates volume in cubic feet, cubic yards, and cubic metres to support different project needs.
one cubic foot (ft³)= 0.037037037037037 cubic yards (yd³) one cubic foot (ft³) = 0.028316846592 cubic metres (m³)
Diameter A: 10 feet > radius = 5 feet Diameter B: 6 feet > radius = 3 feet Depth: 4 inches
The area A of an oval can be found using the formula:
A = π * Diameter A / 2 * Diameter B / 2
A = π * 10 ÷ 2 * 6 ÷ 2 A = 3.1416 * 5 * 3 = 47.1239 square feet
The perimeter P of an oval can be approximated as:
P = π * (a+ b) * (1+ 3h / (10 + √4-3h))
where h = ((a-b) / (a+b))²
Radius a = Diameter A / 2 = 10 feet ÷ 2 = 5 feet
h = ((10 - 6) ÷ (10 + 6))²
h = (4 ÷ 16)² = 0.0625
P = 3.1416 * (5 + 3) * (1 + 3 * 0.0625 ÷ (10 + √4 - 3 * 0.0625)
P = 25.1327 * (1 + 0.0625 ÷ 1.984)
P = 25.1327 * 1.0315 = 25.924 feet
The volume V of concrete is the area multiplied by the depth (converted to feet):
V = A * depth in feet
Convert depth from inches to feet:
Depth in feet = 4 ÷ 12 = 0.3333 feet
Calculate the Volume:
V = 47.1239 * 0.3333 = 15.706 cubic feet 15.706 * 0.037037037037037 = 0.5817 cubic yards 15.706 * 0.028316846592 = 0.4447 cubic metres
Area: 47.12 square feet Perimeter: 25.9 feet Concrete Volume: Cubic Feet: 15.7 Cubic Yards: 0.58 Cubic Meters: 0.45