Material calculators for the yard & garden
Free, no-signup calculators that tell you exactly how much to buy for an outdoor project — so you order the right amount of mulch, soil, or seed the first time and skip the second trip.
Landscape Material Calculator
Cubic yards, cubic feet, and bag counts for mulch, topsoil, compost, gravel, or sand — at the depth you choose.
Estimate materialRaised Bed Soil Calculator
Cubic feet of soil and the number of bags to fill a raised bed or planter of any size.
Estimate soilGrass Seed Calculator
Pounds of seed to plant a new lawn or overseed an existing one, by lawn size and seed type.
Estimate seedPool Volume Calculator
Gallons in a rectangular, round, or oval pool — the number every chemical dose starts from.
Estimate gallonsFertilizer Calculator
How much lawn fertilizer to buy, from your area and its N-P-K nitrogen number.
Size your fertilizerPlant Spacing Calculator
How many plants fit a bed at a given spacing, in square or offset rows.
Plan your spacingGuides
Plain-English planning help — how much mulch you need, filling a raised bed, and how much grass seed to buy.