# Concrete Blocks Calculator

> Build for Builders


## Posts

- [How Much Is a Yard of a Concrete in the USA in 2026?](https://www.concreteblockscalculator.com/how-much-is-a-yard-of-a-concrete/): Quick answer: In the USA in 2026, the answer to how much is a yard of a concrete, for standard ready-mix delivered, is $125–$195, before small-order fees — not one fixed national price.
- [How to Clean Concrete Floors: Everyday Cleaning, Stains & What to Avoid (2026)](https://www.concreteblockscalculator.com/how-to-clean-concrete-floors/): Quick answer: The best way to clean concrete floors is to sweep or vacuum first, then damp-mop with warm water and a pH-neutral floor cleaner.
- [Do I Need a Permit for a Concrete Slab? (2026 Decision Guide)](https://www.concreteblockscalculator.com/do-i-need-a-permit-for-a-concrete-slab/): There is no national answer to this question — and any article that gives you one is guessing.
- [Will My Existing Garage Slab Hold a Car Lift? How to Check Before You Buy](https://www.concreteblockscalculator.com/will-my-slab-hold-a-car-lift/): The short answer: most 2-post lifts need a minimum of 4 inches of concrete, 6 inches is recommended, at 3,000–4,000 PSI, cured for 28 days.
- [Cinder Block vs Concrete Block: What's the Real Difference?](https://www.concreteblockscalculator.com/cinder-block-vs-concrete-block/): A "cinder block" was originally a concrete block made with coal cinders as the aggregate; a concrete block (CMU) uses sand, gravel, or crushed stone.
- [Poured Concrete vs Block Walls: An Honest Comparison](https://www.concreteblockscalculator.com/poured-concrete-vs-block-wall/): Neither is always cheaper or better — it depends on the wall. Block walls usually win for small projects and DIY: lower material cost, no forms, easy to modify.
- [How Many Bags of Mortar Per 100 Blocks?](https://www.concreteblockscalculator.com/mortar-bags-per-100-blocks/): Plan on 7 bags of masonry cement per 100 standard 8×8×16-inch blocks (mixed 1:3 with sand), or 8 bags of 80-lb pre-mixed mortar for the same 100 blocks.
- [How Long Does Concrete Take to Dry? Curing Time Guide](https://www.concreteblockscalculator.com/concrete-drying-curing-time/): How Long Does Concrete Take to Dry?
- [Cement vs. Concrete: What's the Difference?](https://www.concreteblockscalculator.com/cement-vs-concrete/): Cement vs. Concrete: What's the Difference?
- [Concrete Block Sizes & CMU Dimensions: Complete Size Chart](https://www.concreteblockscalculator.com/concrete-block-sizes/): The most common concrete masonry unit you'll find on any job site is the 8×8×16 CMU — nominally 8 in. wide, 8 in. high, and 16 in. long.
- [How to Build a Concrete Block Retaining Wall](https://www.concreteblockscalculator.com/retaining-wall-guide/): A concrete block retaining wall — also called a Segmental Retaining Wall (SRW) or CMU retaining wall — is a structural system designed to hold back soil, prevent erosion, and create flat, usable terraces on sloped properties.

## Pages

- [Blog](https://www.concreteblockscalculator.com/blog/): Practical guides to help you plan, estimate and build with confidence.
- [Terms and Conditions](https://www.concreteblockscalculator.com/terms-and-conditions/): Please read these terms carefully before using www.concreteblockcalculators.com ("the Site"). By using the Site, you agree to them.
- [Contact Us](https://www.concreteblockscalculator.com/contact-us/): Have a question about one of our calculators, spotted a number that looks off, or want to suggest a tool we haven't built yet? We'd like to hear from you.
- [Retaining Wall Block Calculator](https://www.concreteblockscalculator.com/retaining-wall-block-calculator/): Not too familiar with block pricing and labor costs?
- [Fire Pit & Planter Calculator](https://www.concreteblockscalculator.com/fire-pit-planter-calculator/): Building a fire pit or planter starts with knowing how many blocks you need.
- [Concrete Slab Calculator](https://www.concreteblockscalculator.com/concrete-slab-calculator/): Enter your dimensions, choose your thickness, and get instant estimates in seconds — that's really all it takes with this free concrete slab calculator.
- [Concrete Block Weight Calculator](https://www.concreteblockscalculator.com/concrete-block-weight-calculator/): Whether you're designing a retaining wall, estimating freight costs for a flatbed truck, or determining if a patio foundation can support a heavy load, knowing exactly how much concrete weighs is critical.
- [Concrete Block Calculator (CMU)](https://www.concreteblockscalculator.com/): This calculator takes your wall dimensions — length, height, and thickness — along with your block size and mortar mix, and instantly gives you a clear block count, total number of blocks, and a rough block estimate for corners.
- [About Us](https://www.concreteblockscalculator.com/about-us/): ConcreteBlockCalculators builds free online calculators for people who work with concrete block and concrete — contractors, masons, landscapers, builders' merchants, and homeowners taking on their own projects.
- [Privacy Policy](https://www.concreteblockscalculator.com/privacy-policy/): ConcreteBlocksCalculator ("we", "us", "our") operates www.concreteblockscalculator.com.


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