The right amount starts here. Turn your project measurements into
material quantities, with the assumptions in plain sight.
YOUR MATERIAL, YOUR TOOL
Measure gravel for paths, driveways and landscape areas.
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Find the mulch volume and whole bags for your garden beds.
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Work out the topsoil needed for the layer you want to add.
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Estimate sand volume, weight and bags using your product data.
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Measure decorative stone using your area, depth and material data.
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Calculate concrete for slabs, columns and specified footings.
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Count wall blocks with openings and the correct face module.
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Estimate paving units and separate base and bedding quantities.
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Count wall bricks from face dimensions, joints and openings.
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Estimate mortar bags using product-specific masonry coverage.
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Count retaining wall blocks and caps from specified dimensions.
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Count bar runs and steel length from a specified slab grid.
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Measure gravel around a drainpipe and optional fabric wrap.
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Measure lawn sections and convert supplier coverage into sod quantities.
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Total lumber by board size and count, with optional quote-based pricing.
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Estimate surface boards from deck dimensions, gaps and stock lengths.
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Lay out equal risers and treads for a specified straight stair flight.
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Count separate fence runs, shared corners and single-layer pickets.
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Compare plywood area quantities and simple sheet-grid layouts.
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Space decorative battens evenly and get individual wall marks.
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Count wall studs and specified opening pieces from a single-wall layout.
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Estimate hot-mix asphalt from area, compacted thickness and mix density.
Open calculatorABOUT CONSCALC
ConsCalc brings construction and landscaping material estimates into one place. It is built for homeowners planning a weekend project, gardeners measuring a new bed, and people preparing quantities to discuss with a supplier or contractor.
A measurement is only the starting point. Materials may be sold by volume, weight, bag or piece, and those quantities are not interchangeable. Our tools explain the inputs behind each result, show the relevant units and keep product-dependent assumptions visible.
More about the siteMEASURE. UNDERSTAND. PLAN.
A useful estimate tells you what went into it.
Start with your project's dimensions. Choose units and add separate areas where needed.
See how depth, product coverage or density affects the result. Extra allowance stays explicit.
Review the method and units, then copy your estimate to discuss quantities with your supplier.
Each calculator pairs its calculation method with worked examples and a Sources & Methodology section. Material-specific assumptions are checked against relevant manufacturer information or technical references. Published product yields describe that product; they are not treated as a rule for every material or bag.
The calculation code is checked against independently worked examples, unit conversions and rounding cases. Input checks help catch missing or inconsistent measurements. These checks test the calculation; they cannot confirm the measurements, product or site conditions entered by a visitor.
Read our calculation methodologyUSING YOUR ESTIMATE
What the tools can help with, and what to confirm before ordering.
Use it as a planning estimate. Recheck your measurements and confirm the selected product's dimensions, coverage or density with your supplier. Whole bags and pieces may need rounding, while cuts, breakage and site conditions can require an extra allowance. The calculator shows the allowance used; it does not decide the right amount for every job.
The tools estimate material quantities from the dimensions and assumptions you enter. They do not determine safe wall heights, footing sizes, reinforcement, drainage requirements or compliance with local building rules. Use the project specification and qualified advice for those decisions.
Your supplier may use a different product density, bag yield, block module, compaction allowance or delivery increment. Compare those assumptions with the estimate before comparing totals. The worked examples and source notes on each calculator page help you trace the difference.
All calculators are free to use without signing up or entering payment details. Open a tool in your browser, enter your measurements and view the estimate. You can change the inputs to compare options and copy the result without creating an account.
Something does not look right? Tell us about it with the calculator name, measurements, units and result so the calculation can be checked.
