🧱 Concrete Calculators

Slab volume, column volume, footing volume, bags needed, cost estimator, rebar spacing, cure time, and mix ratio calculators.

Concrete Volume (Slab) Calculator

Calculate the volume of concrete needed for a rectangular slab, patio, or driveway. Enter length, width, and thickness to get cubic yards and bags needed.

Concrete Volume (Column/Pier) Calculator

Calculate concrete needed for round or square columns and piers. Supports sonotube calculations for deck posts, fence posts, and structural piers.

Concrete Volume (Footing) Calculator

Calculate concrete volume for continuous footings and spread footings. Enter dimensions to get cubic yards for foundation walls, garage footings, and more.

Bags of Concrete Needed Calculator

Calculate how many bags of premixed concrete you need for your project. Supports 40-lb, 60-lb, and 80-lb bag sizes with waste factor.

Concrete Cost Estimator

Estimate the total cost of a concrete project including materials, delivery, labor, and finishing. Compare ready-mix truck delivery vs. bagged concrete.

Rebar Spacing Calculator

Calculate rebar quantity, spacing, and layout for concrete slabs, footings, and walls. Determine number of bars, total linear feet, and weight.

Concrete Cure Time Calculator

Estimate concrete curing timeline based on temperature, humidity, and mix type. Know when you can walk on, drive on, or apply loads to your new concrete.

Concrete Mix Ratio Calculator

Calculate the right proportions of cement, sand, gravel, and water for different concrete strengths. Covers standard, high-strength, and mortar mixes.