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Currency & unitsUSD · Imperial

Using USD and Imperial. You can change either choice.

Currency changes the unit of your amounts, not their value. No exchange rate or country-specific tax, benefit, or lending rule is applied. Money results and loan schedules retain the calculators’ two-decimal precision; this does not apply local cash-rounding rules.

Measurement changes convert valid existing quantities. Incomplete entries stay as typed; finish them using the units shown. Other units stay as labeled. Enter numbers as 1,234.56; a decimal comma is not supported.

Initial suggestions use only your browser’s language region. Choices are saved on this browser; no location lookup is used.

Home Projects Calculators

Measure areas and estimate project materials. Choose a tool below for instant results, formulas, and examples.

Concrete Block CalculatorEstimate concrete blocks for walls with openings, nominal or actual block dimensions, mortar joints, waste, mortar bags and editable material prices.Concrete Footing CalculatorCalculate concrete for strip footings, rectangular pads or round piers. Include repeated elements, waste, bag yield, metric units and material estimates.Concrete Slab Cost CalculatorCompare bagged concrete and ready-mix slab costs. Include dimensions, waste, whole bags, minimum delivery volume, order increments, labor, and your prices.Square Footage CalculatorCalculate the area of a rectangle, triangle, or circle. Convert square feet to square meters, square yards, and acres.Concrete CalculatorEstimate concrete volume and whole bags for a rectangular slab. Set thickness, waste allowance, and the yield printed on your bag.