Concrete Fill Calculator for Block Walls

Concrete Fill Calculator

Note: Technically called "grout" in code books, but this calculator is for filling CMU blocks with concrete.
Enter wall sections to see total fill volume.

If you’re a contractor, estimator, or builder working with concrete block (CMU) walls, you know how important it is to calculate the right amount of concrete fill—whether you’re pouring every cell or just the verticals.

Our Concrete Block Wall Fill Calculator is designed specifically for real-world jobsite conditions. No guessing. No over-ordering. Just accurate numbers based on the exact block type, wall dimensions, spacing of verticals, and waste factors.

🔍 Who Is This Calculator For?

  • Masonry and Concrete Contractors

  • Estimators & Bidders

  • General Contractors working with block masons

  • DIY Builders tackling CMU projects

  • Project Managers needing real-time site calculations

🧮 What This Calculator Does:

  • Estimates concrete fill volume (cu ft and cubic yards)

  • Supports both:

    • ✅ Full Wall Fill mode (for all block cells)

    • ✅ Upright Only mode (vertical cores every 16″, 32″, 48″, or custom)

  • Lets you:

    • Add multiple wall sections

    • Manually enter known vertical count (if spacing doesn’t apply)

    • Set a custom waste percentage

  • Provides a grand total volume at the end for batching or ordering

📏 Block Types Supported:

  • 6x8x16

  • 8x8x16

  • 10x8x16

  • 12x8x16

Each block type uses realistic core volume estimates per vertical foot or per block, so you get numbers that match field experience.

📱 Why It’s Different:

Most online tools are basic or assume every block is filled. Our calculator was built with the day-to-day needs of working contractors in mind — flexible, practical, and mobile-ready.

✅ Try it out now and never second-guess your CMU fill quantity again.

Perfect for use during takeoffs, on-site planning, or quick estimates between pours.

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