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37 tools in 6 categoriesSoil & Ground Cover
View all 11 tools →Project Costs
View all 6 tools →Water & Drainage
View all 6 tools →Lawn & Grass
View all 5 tools →Trees & Plants
View all 5 tools →Everything you need to simplify your life.
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Our Most Popular Tools
We present the best of the best. All free, no catch
Gravel Calculator
Soil & Ground Cover
Work out the gravel a driveway, drain or patio base needs, in layers, with compaction accounted for, so you order the right amount the first time.
Mulch Calculator
Soil & Ground Cover
Work out how much mulch you need in bags or cubic yards, plus weight and cost, for one bed or several beds added together. Depth guidance sourced from university extension research.
Soil Calculator
Soil & Ground Cover
Work out how much garden soil, fill dirt or a compost blend you need in bags or cubic yards, plus weight in tons and cost, for one bed or several added together. Density sourced from a Wisconsin DOT research report and USDA guidance.
Topsoil Calculator
Soil & Ground Cover
Work out how much topsoil you need in cubic yards or tons, for filling a low spot, grading a yard or topdressing a lawn. Weight sourced from a Wisconsin DOT research report, topdressing depth from university turf extension guidance.
Sand Calculator
Soil & Ground Cover
Work out how much sand you need in bags, cubic yards or tons, for a paver bedding layer, a sandbox, general fill or a mortar mix. Depth sourced from the ICPI paver installation standard, weight from a Wisconsin DOT research report.
Paver Calculator
Patios, Walls & Paving
Count the pavers, gravel base, bedding sand and edge restraint a patio or path needs: sized to your paver size and laying pattern, not just area and depth.
Sod Calculator
Lawn & Grass
Work out how much sod to order, in rolls or pallets, with a sourced waste allowance for cuts and curves, plus an editable cost estimate.
Tree Removal Cost Calculator
Project Costs
Estimate tree removal cost by height, trunk diameter and site access, with stump grinding priced as a separate add-on, sourced from Angi's 2026 national data.
Gravel Calculator
Soil & Ground Cover
Work out the gravel a driveway, drain or patio base needs, in layers, with compaction accounted for, so you order the right amount the first time.
Mulch Calculator
Soil & Ground Cover
Work out how much mulch you need in bags or cubic yards, plus weight and cost, for one bed or several beds added together. Depth guidance sourced from university extension research.
Soil Calculator
Soil & Ground Cover
Work out how much garden soil, fill dirt or a compost blend you need in bags or cubic yards, plus weight in tons and cost, for one bed or several added together. Density sourced from a Wisconsin DOT research report and USDA guidance.
Topsoil Calculator
Soil & Ground Cover
Work out how much topsoil you need in cubic yards or tons, for filling a low spot, grading a yard or topdressing a lawn. Weight sourced from a Wisconsin DOT research report, topdressing depth from university turf extension guidance.
Sand Calculator
Soil & Ground Cover
Work out how much sand you need in bags, cubic yards or tons, for a paver bedding layer, a sandbox, general fill or a mortar mix. Depth sourced from the ICPI paver installation standard, weight from a Wisconsin DOT research report.
Paver Calculator
Patios, Walls & Paving
Count the pavers, gravel base, bedding sand and edge restraint a patio or path needs: sized to your paver size and laying pattern, not just area and depth.
Sod Calculator
Lawn & Grass
Work out how much sod to order, in rolls or pallets, with a sourced waste allowance for cuts and curves, plus an editable cost estimate.
Tree Removal Cost Calculator
Project Costs
Estimate tree removal cost by height, trunk diameter and site access, with stump grinding priced as a separate add-on, sourced from Angi's 2026 national data.
Numbers you can
actually trust.
A calculator that's wrong costs real money: an under-ordered patio base, a lawn seeded at twice the rate it needed. So it matters where the numbers come from.
Built and checked by Usama, a civil engineer; every formula is confirmed against two independent sources before it ships.
Read the full sourcing policyUniversity extension services
Penn State, Oregon State, Texas A&M AgriLife and peers: regionally specific, peer-reviewed guidance.
Federal agencies
USDA, NRCS and NOAA: soil classification, frost dates, conservation practice standards.
Published material specs
Manufacturer data sheets and product labels, for figures that belong to a specific product.
Industry standards bodies
ASTM, ICPI, the Irrigation Association, for what no public agency publishes.
Why Bunny Corner
100% Free
Every calculator, fully free: no paywalls, no premium tier.
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Calculations run in your browser. Nothing you enter is stored.
Always Updated
Formulas and material data are reviewed and refreshed regularly.
Some rules we refuse to break.
Copy numbers from competing calculators.
Generate figures with a language model.
Invent false precision.
Treat marketing copy as a spec.
Every rule, explained in full:read our sourcing policy →
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