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Research-backed calculators for real buying decisions
Find the right calculator in one move.
Search calculators and planners, start a guided project flow, or open a guide before you estimate.
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Search calculators and planners.
Try: gravel, patio planner, fence build, fill dirt
Gravel Calculator Direct answer Paver Patio Planner Guided flow Mulch Calculator Popular Bed Refresh Planner Multi-step
Guided path
Plan a full project
Follow the required steps and finish with one summary.
Start a planner →Learn first
Read guides and cost explainers
Use guides, comparisons, and cost pages before you calculate.
Browse guides →
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Guided Project Flows
Plan a Full Project
Use a guided planner when you want one clear start, one next step, and a final printable summary.
Featured Journey
Paver Patio Planner
Keep the same footprint from support layers to final summary in one guided patio plan.
Step 1 — Measure patio area and perimeter Measurement
Current
Step 2 — Choose paver type and pattern Paver selection
Next
Step 3 — Check slope away from the structure Slope check
Next
Step 4 — Plan excavation and spoil Excavation and spoil
Next
Step 5 — Calculate compacted base Compacted base
Next
Step 6 — Calculate bedding sand Bedding sand
Next
Step 7 — Calculate field pavers Field pavers
Next
Step 8 — Calculate edge restraint Edge restraint
Next
Step 9 — Calculate polymeric sand Polymeric sand
Next
Finish — Project summary Review, print, or copy the completed plan.
Finish
Guided Planner
Paver Patio Planner
Measure, slope-check, excavate, build layers, set pavers, and finish the patio in one guided sequence.
Guided Planner
Retaining Wall Planner
Work through buried depth, trench spoil, wall materials, drainage, and backfill notes in one retaining-wall flow.
Guided Planner
Bed Refresh Planner
Soil prep first, finish cover second, then optional planting and edging detail in one bed-refresh summary.
Guided Planner
Concrete Pad Planner
Pad size first, then spoil, base, concrete volume, buying mode, reinforcement, and finish guidance in one slab plan.
Guided Planner
Lawn Renovation Planner
Measure, prep, choose seed or sod, then finish with starter-material and watering guidance in one lawn plan.
Guided Planner
Yard Drainage Planner
Diagnose the wet area, pick the right branch, plan discharge, and finish the yard restoration in one drainage flow.
Guided Planner
Gravel Driveway / Parking Pad / Shed Pad Planner
Plan the full layered gravel job: footprint, spoil, geotextile, base, top aggregate, slope, and delivery.
Guided Planner
Fence Build Planner
Fence structure first, concrete refinement second, then one printable plan.
Guided Planner
Walkway / Garden Path Planner
Layout first, then branch into pavers, gravel, or stepping stones without losing the path geometry.
Guided Planner
Deck Build Planner
Measure the deck, choose the board setup, then carry the job through stairs, railing, supports, trim, and finish products.
Browse by Project Type
Start with calculators, planners, or learning content depending on what you already know.
Need a number fast?
Start with calculators
Best when you already know the task and want the first answer fast.
Open calculator library →Need multiple steps?
Start a planner
Best when one estimate is not enough and you want a clear order plus a summary.
Open planner hub →Need to learn first?
Learn before you calculate
Use guides, cost explainers, and comparisons before you choose a material or method.
Browse guides →Landscaping Calculators
Ground prep, beds, drainage, and bulk-material planning.
- Gravel Calculator Calculate
- Stone Calculator Calculate
- Mulch Calculator Calculate
- Topsoil Calculator Calculate
- Sand Calculator Calculate
- Sod Calculator Calculate
- Grass Seed Calculator Calculate
- Runoff Catchment Calculator Calculate
- Catch Basin & Downspout Calculator Calculate
- Channel Drain Calculator Calculate
- French Drain Calculator Calculate
- Artificial Turf Calculator Calculate
- Fill Dirt Calculator Calculate
- Excavation & Spoil Calculator Calculate
- Landscape Fabric Calculator Calculate
- Plant Spacing Calculator Calculate
- Landscape Edging Calculator Calculate
- Drip Irrigation Calculator Calculate
Pavers & Hardscape
Base layers, pavers, walls, and surface planning.
- Drainage Slope & Drop Calculator Calculate
- Walkway Path Layout Calculator Calculate
- Stepping Stone Calculator Calculate
- Paver Base Calculator Calculate
- Paver Calculator Calculate
- Retaining Wall Calculator Calculate
- Asphalt Calculator Calculate
- Polymeric Sand Calculator Calculate
Deck & Fence
Deck, fence, railing, and outdoor finish takeoffs.
- Concrete Calculator Calculate
- Slab Reinforcement & Joints Calculator Calculate
- Post Hole Concrete Calculator Calculate
- Deck Board Calculator Calculate
- Deck Stairs Calculator Calculate
- Deck Railing Calculator Calculate
- Deck Footing Calculator Calculate
- Deck Fascia Calculator Calculate
- Deck Stain Calculator Calculate
- Fence Calculator Calculate
Walls & Paint
Paint, drywall, and room-finish estimating for interior projects.
- Paint Calculator Calculate
- Drywall Calculator Calculate
Flooring & Tile
Tile, flooring, carpet, and room-surface planning.
- Tile Calculator Calculate
- Flooring Calculator Calculate
- Carpet Calculator Calculate
Roofing & Exterior
Roof, siding, and exterior-envelope estimating.
- Roofing Calculator Calculate
- Siding Calculator Calculate
- Insulation Calculator Calculate
Masonry
Brick, block, mortar, and wall-assembly takeoffs.
- Brick Calculator Calculate
- Concrete Block Calculator Calculate
Support content
Guides
Depth recommendations, bag counts, material explanations, and project how-tos.
Browse guides →Support content
Cost Guides
Regional project pricing, labor tradeoffs, and planning ranges before you buy.
See cost guides →Support content
Comparisons
Compare materials, methods, and tradeoffs before you commit to a project path.
Read comparisons →Recently Updated
These calculators were recently rebuilt from research with deeper presets, warnings, and purchase formats.
Recently updated
Stone Calculator
Calculate stone, crushed stone, and aggregate quantities
Calculate →Recently updated
Topsoil Calculator
Calculate topsoil and garden soil quantities
Calculate →Recently updated
Mulch Calculator
Calculate how much mulch you need in cubic yards and bags
Calculate →Recently updated
Deck Board Calculator
Calculate deck boards, fasteners, waste, and surface-board takeoff
Calculate →Why Trust These Calculators
Research-backed
Built around real project decisions.
Coverage rules, purchase formats, and planner flows are shaped by how people actually buy, estimate, and build.
Answer-first Search, calculators, and planners stay easy to reach from the first screen.
Sacred zone Inputs through results stay ad-free and visually calm.
Maintained Updated calculators and guides keep the site current.
Guided planners
Use a planner when one estimate is not enough.
Keep the order clear, carry measurements forward, and finish with one summary you can print or copy.
Support pages
Guides, costs, and comparisons stay close to the tools.
Compare materials, understand tradeoffs, and answer common project questions before you calculate.
Frequently Asked Questions
What is CalcHub? +
CalcHub is a free collection of research-backed calculators, planners, and guides for home improvement and outdoor project planning. Each calculator is built from domain research — not generic formulas — so the inputs, presets, waste factors, and outputs match how real projects work and how suppliers actually sell materials.
Are these calculators accurate? +
Yes. Every calculator is backed by an 8-step research process that includes competitor analysis, community pain-point research, supplier data verification, and unit-tested formulas with 100% line coverage. Outputs are rounded to match real purchase units (you can't buy half a bag). That said, all calculators provide estimates — site conditions, material moisture, and supplier tolerances can affect final quantities.
Do you update calculators when rates or codes change? +
Yes. Material densities, bag sizes, and industry standards are reviewed periodically and updated when suppliers change packaging or when new research lands. Substantive pages include maintenance and methodology notes so you can see how the content is kept current.
How is CalcHub free? +
CalcHub earns revenue through display advertising (outside the calculator area) and contextual affiliate links to suppliers. Ads never appear inside the calculator itself — the area from the first input field through the results is always ad-free. This is what we call the "sacred zone."
Who makes these calculators? +
CalcHub is operated by Cloudtopia, an Ontario, Canada company. The site is built by a small team that combines software engineering with deep domain research. Every calculator goes through a documented research process — from competitor audit to community pain-point analysis to formula verification — before any code is written. See our About page for more.
What calculators will you add next? +
We add new calculators where research shows we can improve a real project decision, not just publish another generic tool. The current focus is home-improvement calculators, project planners, and support content that helps you move from measurement to buying and sequencing. If there is a tool you want us to prioritize, send it through the contact page.
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