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Concrete Calculator

Select shape at left, enter correct side lengths, slab thickness and footing - thickening details



Input in Inches
Side   1
Side   2
Concrete Calculator - Slab Shape


Area 21.33
Volume 5.37
Volume 145 ft³
Perimeter 56'
Input in Inches
Slab Thickness
Edge Footing Width
Edge Footing Total Thickness
Internal Thickening Total Length
Internal Thickening Width
Internal Thickening Total Depth
Splay Thickening and edge beams at 45°

Concrete Calculator slab volume


Concrete slab edge footing and thickenings


This slab has a total perimeter length of 56', total area of 21.33 y² and with thicknes of 6" has a concrete volume of 5.37 y³ or 145 ft³ including a perimeter footing with total thickness of 1', and width of 1'6", with internal edge splayed at 45°

Pre-Mix Concrete Bag Calculator
ft³ = approx:  60 lb Bags or  80 lb Bags of Premix Concrete

= approx:


Cylindrical Concrete Column Calculator Cylindrical column concrete calculator
cylindrical columns with diameter inches and length inches have a volume of



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