Concrete & Asphalt Calculators
Calculate concrete volume, bags needed, and paving costs.
Concrete and asphalt projects require precise material calculations to avoid costly over-ordering or running short mid-project. Our calculators help you determine exactly how much material you need for driveways, patios, sidewalks, and other paving projects. Concrete is sold by the cubic yard for ready-mix delivery or by the bag for smaller projects. Knowing whether to order ready-mix or use bags depends on your project size. Generally, projects requiring more than one cubic yard benefit from ready-mix delivery. Our calculators provide both options so you can make the best choice. For asphalt projects, we calculate tonnage based on your area and desired thickness, plus estimated costs based on current material pricing. These estimates help you evaluate contractor quotes and plan your project budget accurately.
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Concrete Slab Cost Calculator
Free concrete slab cost calculator. Estimate cost per square foot, cubic yards, material, labor, and total for patios, driveways, pads, and foundations.
Open calculatorConcrete Bag Calculator
Free concrete bag calculator. Find how many 40lb, 60lb, or 80lb bags you need for post holes, footings, and small slabs with cost estimates.
Open calculatorAvailable Calculators
Concrete Slab Cost Calculator
Free concrete slab cost calculator. Estimate cost per square foot, cubic yards, material, labor, and total for patios, driveways, pads, and foundations.
Use CalculatorConcrete Bag Calculator
Free concrete bag calculator. Find how many 40lb, 60lb, or 80lb bags you need for post holes, footings, and small slabs with cost estimates.
Use CalculatorAsphalt Calculator
Free asphalt calculator to estimate tonnage and costs for driveways and parking lots. Calculate hot mix asphalt needed based on area and thickness.
Use CalculatorRelated guides
How to Calculate Concrete for a Slab
Learn how to calculate concrete for a slab in cubic yards, apply the right waste factor, and estimate cost with our concrete slab cost calculator.
Read guideHow Many Concrete Bags Do I Need?
Learn how many concrete bags you need for slabs, fence posts, and footings. Use our concrete bag calculator to get an exact 40, 60, or 80 lb bag count.
Read guideConcrete Bag Sizes: 40 lb, 60 lb, and 80 lb Explained
Compare 40, 60, and 80 lb concrete bag sizes by yield, weight, and value. See which bag size fits your project and use our concrete bag calculator.
Read guideFrequently Asked Questions
How thick should my concrete slab be?
Standard residential slabs are 4 inches thick. Driveways that will support vehicles should be 5-6 inches. Heavy equipment areas may need 6-8 inches with reinforcement.
What is the difference between 40lb and 80lb concrete bags?
The difference is simply the amount per bag. An 80lb bag yields about 0.6 cubic feet, while a 40lb bag yields about 0.3 cubic feet. Larger bags are more economical but heavier to handle.
How many cubic yards is a concrete truck?
Standard concrete trucks hold 8-10 cubic yards, though they can deliver partial loads. Most suppliers have minimum delivery requirements, typically around 1 cubic yard.