Block Wall Calculator
Calculate the number of blocks, mortar, and cost for a block wall project. Enter wall dimensions, block size, and material costs to get accurate estimates.
Published by:
isCalculator Editorial Team
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How to use this tool?
How to Use the Block Wall Calculator
This calculator estimates the number of blocks, mortar bags, and total cost for a wall. All measurements are in feet (wall dimensions) and inches (block dimensions).
- Enter Wall Dimensions: Input the wall height and length in feet (e.g., 8 ft height, 20 ft length).
- Enter Block Size: The default block height is 8 inches and length is 16 inches. Adjust if needed.
- Enter Costs: Provide the price per block and the cost per bag of mortar (defaults: $2.50 and $5.00).
- Click "Calculate": The button runs the calculation.
- View Results: You'll see:
- Blocks Needed: Total blocks (rounded up).
- Mortar Bags: 1 bag per 100 blocks (rounded up).
- Total Cost: Blocks cost + mortar cost.
Tip: Ensure all inputs are positive numbers. Errors appear in red if values are missing or invalid.
Previous Results
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Frequently Asked Questions
Measure the height from the base to the top of the wall, and the length along the ground. Use feet for both.
Common concrete block sizes are 8x16 inches (height x length). You can adjust the inputs for other sizes.
No, it assumes blocks are placed without mortar gaps for simplicity. For precise estimates, add 5-10% extra.