About MatAmount

MatAmount started with a second trip to the supply yard.

Too many online calculators hand you one number and skip the part that actually matters: the waste you should add, the unit your supplier quotes in, the cost at your price. So you order the exact figure, the ground isn’t level, and you’re back in the truck for another half-yard while the crew stands around.

These tools are built to stop that. Every one shows the full breakdown, the quantity, the overage to add on top, and a cost you can set to your own numbers. They run in your browser, work one-handed on a phone, and load fast, because you’re usually standing on a jobsite when you need them, not sitting at a desk.

How the numbers are figured

The math is plain geometry and real material densities, the same figures a supplier uses. Gravel at about 1.4 tons per cubic yard. Hot-mix asphalt at 145 pounds per cubic foot. A standard block face covering 0.89 square feet of wall. Where a number varies by product or local code, the tool says so and gives the usual range instead of pretending there’s one answer.

None of it replaces an engineer or your local building department. For anything structural, these are a starting point, not a spec. They size your order and check your thinking before you spend money.

Spot a number that looks off? Tell us. Getting them right is the whole point.