Concrete Calculator

Concrete is the most used man-made material on Earth - 10 billion tons annually

The Pantheon's concrete dome has lasted 2,000 years - still the largest unreinforced dome

Concrete gets stronger over time - it reaches 70% strength in 7 days, 99% in 28 days

Concrete generates heat as it cures - large pours need cooling pipes inside

The Hoover Dam used enough concrete to pave a two-lane road from SF to NYC

Crushed concrete can be recycled as aggregate for new concrete or road base

Roman concrete used volcanic ash, making it stronger than modern concrete in seawater

A typical house foundation uses 7-15 cubic yards of concrete