About SlabCalc

SlabCalc is a suite of professional-grade concrete calculators, free to use for both DIY homeowners and contractors. No signup, no paywalls — just accurate concrete math when you need it.

Why SlabCalc Exists

Concrete work demands precise material estimates. Order too little and you're stuck mid-pour waiting on a second delivery. Order too much and you're paying for yards you don't need. We built SlabCalc to make the math accessible to everyone — from first-time DIYers pouring a small patio to seasoned contractors bidding multi-phase projects.

Education-First Approach

SlabCalc isn't just a calculator. We publish guides, a concrete glossary, and detailed cost breakdowns alongside every tool. Our goal is to help you understand why the numbers matter — waste factors, bag sizing, ready-mix thresholds — so you can make informed decisions instead of guessing.

Technical Depth

We offer 9+ shape calculators — slab, cylinder, curb, stairs, footing, and more — with full imperial and metric support. Every calculator includes adjustable waste factors, bag counts across standard sizes, and cost estimates. Professional-grade tooling with zero signup and zero data collection.

Who We Are

We're a small, independent team with hands-on concrete experience and engineering backgrounds. We build tools we'd want to use on our own projects — accurate, fast, and free of clutter.

Contact

Questions, feedback, or suggestions? Reach us at [email protected].