Concrete Price Calculator
Price a concrete slab by size, thickness and U.S. metro.
Concrete Price Calculator estimates concrete slab cost from three inputs you already know: length, width and thickness. It returns the concrete volume in cubic yards, the number of 80 lb bags, and an installed price range for your U.S. metro.
Most slab calculators give you one confident number with no visible source. This one shows where every rate comes from — HomeGuide's published installed range and BLS metro wage data — and tags each figure as Verified or Estimated. Location precision stops at the metro level on purpose: a ZIP-code price would imply a precision the public data cannot support.
Features
- Slab volume in cubic yards from simple length, width and thickness inputs, with an adjustable waste factor (10% by default)
- 80 lb bag count, rounded up, using QUIKRETE's published yield of 0.60 ft³ per bag
- Installed cost as $/sq ft and project total, adjusted for thickness and metro
- Metro-level labor adjustment from BLS OEWS wage data across 8 major U.S. metros
- Every rate tagged Verified or Estimated, with its source and revision date shown
- Comparison tables by slab size, thickness, and metro area
- Free, no signup, no ads, no email gate
Use Cases
- Pricing a 20×20 ft garage slab before calling any contractors
- Sanity-checking whether a contractor or supplier quote is in the normal range
- Comparing DIY ready-mix material cost against an installed contractor benchmark
- Estimating bag counts for a small pour where a ready-mix truck isn't worth it
- Comparing the same slab across metros before buying or building
Comments
I kept landing on slab cost calculators that gave me one confident number and no way to check it. When I tried to trace the figure back, it either came from an unpublished internal table or from nothing at all. So I built this one backwards: pick the sources first, then only show what they can actually support. That's why every figure on the page is tagged Verified or Estimated, why the location selector stops at the metro instead of pretending to know your ZIP code, and why the formulas are spelled out where you can read them. If you spot a rate that looks out of date or a metro that's missing, tell me in the comments. Sourcing is the whole product here, so corrections are genuinely welcome.
I kept landing on slab cost calculators that gave me one confident number and no way to check it. When I tried to trace the figure back, it either came from an unpublished internal table or from nothing at all. So I built this one backwards: pick the sources first, then only show what they can actually support. That's why every figure on the page is tagged Verified or Estimated, why the location selector stops at the metro instead of pretending to know your ZIP code, and why the formulas are spelled out where you can read them. If you spot a rate that looks out of date or a metro that's missing, tell me in the comments. Sourcing is the whole product here, so corrections are genuinely welcome.
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Comments
I kept landing on slab cost calculators that gave me one confident number and no way to check it. When I tried to trace the figure back, it either came from an unpublished internal table or from nothing at all. So I built this one backwards: pick the sources first, then only show what they can actually support. That's why every figure on the page is tagged Verified or Estimated, why the location selector stops at the metro instead of pretending to know your ZIP code, and why the formulas are spelled out where you can read them. If you spot a rate that looks out of date or a metro that's missing, tell me in the comments. Sourcing is the whole product here, so corrections are genuinely welcome.
I kept landing on slab cost calculators that gave me one confident number and no way to check it. When I tried to trace the figure back, it either came from an unpublished internal table or from nothing at all. So I built this one backwards: pick the sources first, then only show what they can actually support. That's why every figure on the page is tagged Verified or Estimated, why the location selector stops at the metro instead of pretending to know your ZIP code, and why the formulas are spelled out where you can read them. If you spot a rate that looks out of date or a metro that's missing, tell me in the comments. Sourcing is the whole product here, so corrections are genuinely welcome.
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