Garden & Landscaping Calculators
Get the right amount of mulch, soil, gravel, seed, and fertilizer for every garden and landscaping project.
A beautiful garden starts with accurate planning. Our garden and landscaping calculators help you determine how much mulch, topsoil, gravel, grass seed, sod, fertilizer, and compost your project needs. Save money by buying exactly what you need, and avoid the hassle of multiple trips to the garden center.
Garden & Landscaping Calculators (13)
Mulch Calculator
Calculate exactly how much mulch you need for your garden beds, landscaping areas, or pathways. Enter your bed dimensions and desired depth to get cubic yards, cubic feet, and 2-cu-ft bag count instantly.
Gravel Calculator
Calculate how much gravel, crushed stone, or pea gravel you need for driveways, pathways, and landscaping. Get cubic yards, tons, and cost estimate based on your gravel type and project dimensions.
Lawn Seed Calculator
Calculate exactly how many pounds of grass seed you need for a new lawn or overseeding project. Choose your grass type, project type, and bag size to get an instant recommendation for any lawn size.
Sod Calculator
Calculate exactly how many rolls and pallets of sod you need for your lawn, including a built-in waste factor. Enter your lawn dimensions, select your sod type and roll size, and get an instant material and cost estimate.
Soil Calculator
Calculate exactly how much soil you need for garden beds, raised planters, or lawn topdressing. Enter the area dimensions and fill depth, choose your bag size, and get volume in cubic feet, cubic yards, and bag count plus a cost estimate.
Sand Calculator
Calculate exactly how much sand you need for any project — paver base, sandbox, mortar, lawn top-dressing, or fill. Enter your area dimensions and sand depth to instantly get volume in cubic feet and cubic yards, weight in tons, number of bags, and estimated cost.
Raised Garden Bed Calculator
Calculate exactly how much soil you need to fill a raised garden bed. Enter your bed dimensions, depth, soil mix type, and bag size to get total volume in cubic feet and cubic yards, plus bag count and cost estimate.
Fertilizer Calculator
Calculate exactly how many pounds of fertilizer and how many bags you need for your lawn or garden. Enter your area, desired nitrogen rate, and NPK grade (10-10-10, 32-0-4, urea, and more) to get instant results including nutrients applied and total cost.
Compost Calculator
Calculate exactly how much compost you need for any garden bed or lawn area. Enter your square footage, desired application depth, and whether you are buying bagged, bulk, or making your own — then get volume in cubic feet and cubic yards, bag count, total cost, and how many backyard compost bins you would need to produce that amount yourself.
Plant Spacing Calculator
Calculate exactly how many plants you need to fill any garden bed or landscape area. Enter your area dimensions, spacing between plants, and planting pattern to get an instant plant count, 10% overage recommendation, coverage stats, and total cost estimate.
Tree Spacing Calculator
Calculate exactly how many trees you need for a single row, privacy hedge, or full area planting. Enter your dimensions, tree type, and spacing to get an accurate tree count, canopy coverage at maturity, and total cost estimate including materials, labor, and mulch.
Irrigation Calculator
Calculate how much water your lawn or garden needs per irrigation cycle, estimate monthly and annual water costs, and determine how many sprinkler heads or drip emitters your system requires. Works for rotary sprinklers, spray heads, drip emitters, and soaker hoses.
Rainwater Collection Calculator
Calculate how many gallons of rainwater you can collect from your roof each month and year, estimate your water bill savings, find the right tank or barrel size, and see how quickly your rainwater harvesting system pays for itself.