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Concrete Calculator

Calculate entire concrete projects. Add unlimited shapes like slabs, triangles, columns, curbs and more.

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    Results

    • 3
    • Bags
    • Cost

    How It Works

    Math is hard enough; take a load off and use our free concrete calculator to quickly calculate how much you'll need. Calculate based on numerous types of dimensions and an unlimited number of each.

    What makes our calculator unique is the ability to add multiple shapes & dimensions in one sweep. Concrete projects are rarely just a single, clean slab. Here, you can calculate everything at once.

    Tip:Your calculations will be saved automatically, so no need to worry about your progress being erased.

    Let's get calculating!

    Step-by-Step Tutorial

    Calculating how much concrete you need has never been easier. Follow these 3 simple steps to make the process seamless and efficient. Let's get started!

    Step 1: Choose Your Settings

    Select your unit type, cost type (by bag or by the yard/meter), bag size, cost and desired waste amount. Your settings will be automatically saved for when you come back the next time.

    Image showing the toolbar for the concrete calculator
    Settings for the concrete calculator

    By default, we start you with 80 lb. bags, assuming you're not using ready-mix concrete. You can adjust this number to match whatever bag size you plan to use.

    Step 2: Choose Your Shape(s)

    We understand that many projects require multiple shapes or dimensions. Choose from a slab, footing, column, stairs, curb/gutter, circle/tube or any combination of them—it doesn't matter how many you have, we'll do the heavy lifting.

    choose your shapes for your project
    Choose your shapes for your project

    Step 3: Add Your Dimensions

    Once your shapes are added, input the dimensions that you've measured for each of them. After that, your results will be shown!

    Calculations for a 10x10 concrete slab that's 4 inches thick
    Calculations for a 10x10 slab that's 4 inches thick

    Pretty easy, isn't it?

    Edit, Save and Repeat

    Now you can easily measure all of your concrete projects. Bookmark this page and your calculations will be here when you return. When you're done, reset the calculator and start with a fresh one.

      • Dimensions
        A diagram of slab and footing measurements
        • Wall Height
        • Wall Width
        • Quantity
      • Dimensions
        A diagram of slab and footing measurements
        • Length
        • Width
        • Thickness
        • Quantity
      • Dimensions
        • Length
        • Width
        • Thickness
        • Quantity
      • Dimensions
        A diagram of slab and footing measurements
        • Length
        • Width
        • Depth
        • Quantity
      • Dimensions
        A diagram of column measurements
        Column Dimensions
        • Height
        • Diameter
        • Quantity
      • Dimensions
        A diagram of curb and gutter measurements
        • Length
        • Flag Thickness
        • Gutter Width
        • Curb Height
        • Curb Depth
        • Quantity
      • Dimensions
        A diagram of stairs measurements
        • Platform Depth
        • Width
        • Rise
        • Run
        • # of Steps
        • Quantity
      • Dimensions
        A diagram of circle and tube measurements
        • Outer Diameter
        • Inner Diameter
        • Height
        • Quantity
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