SlabCalc LogoSlabCalc Concrete Technical Division

Concrete Calculator Browser Extension

Quick access to concrete volume and cost calculations right from your browser toolbar. Available for Chrome, Firefox, and Opera. No account needed — just click and calculate.

Slab calculator with live results
Slab calculator with live results
Cost breakdown view
Cost breakdown
Metric and sonotube support
Metric & sonotube support

Features

  • 4 shape types: slab, footing, wall, sonotube
  • Live volume, weight, and bag calculations as you type
  • Imperial and metric unit toggle
  • Bagged and ready-mix cost estimates
  • Inputs persist between sessions — pick up where you left off

How It Works

  1. Install the extension from the Chrome Web Store, Firefox Add-ons, or Opera Add-ons.
  2. Click the SlabCalc icon in your toolbar and pick a shape.
  3. Enter dimensions — results update instantly.

Support