Landscaping Calculators
Plan driveways, patios, garden beds, lawns and ponds: tons and yards of gravel, soil, sand and mulch, pallets of sod, pounds of seed and fertilizer, and the slope and size of your land.
44 calculators · A–Z of all calculators
- Gravel CalculatorTons and cubic yards of gravel for driveways, paths and bases.
- River Rock CalculatorTons, cubic yards and bags of river rock for beds, borders and dry creeks.
- Sand CalculatorSand for sandboxes, pavers, pool bases and leveling, in tons, yards and bags.
- Mulch CalculatorBags or cubic yards of mulch for beds of any shape.
- Compost CalculatorCompost for garden beds and lawn topdressing, in cubic yards and bags.
- Topsoil & Dirt CalculatorCubic yards of topsoil for lawns, beds and raised gardens.
- Paver CalculatorPavers, base gravel and sand for patios and walkways.
- Landscape Edging CalculatorFeet of edging, 20–50 ft kits and anchoring spikes for beds.
- Sod CalculatorSquare feet, pallets, slabs and rolls of sod for a new lawn.
- Grass Seed CalculatorPounds and bags of grass seed for a new lawn or overseeding, by grass type.
- Plant Spacing CalculatorPlants per bed, grid or staggered.
- Tree Height CalculatorTree height with a clinometer.
- Fertilizer CalculatorPounds and bags of lawn fertilizer from the N-P-K and nitrogen rate.
- Asphalt CalculatorTons of hot mix for driveways and paths, plus cold patch bags for repairs.
- Slope CalculatorPercent grade, degrees and drop for yards, drainage and ramps.
- Acreage CalculatorAcres, hectares and square feet of a lot or field, with the price per acre.
- Pond CalculatorPond gallons, liner and underlayment size, and pump GPH.
- Rainwater Harvesting CalculatorGallons of rain your roof can collect.
- Pool Volume CalculatorGallons in a rectangular, round or oval pool, and time to fill.
- Cubic Yard CalculatorAny area and depth in cubic yards, for any bulk material.
- Cubic Feet CalculatorCubic feet of boxes, rooms and cylinders, with yards, gallons and liters.
- Material Weight CalculatorWeight of gravel, sand, soil, asphalt, concrete or water in tons.
- Pool Salt CalculatorPounds and bags of salt to reach your target ppm, or water to drain.
- French Drain CalculatorGravel, perforated pipe and filter fabric for a French drain trench.
- Raised Bed Soil CalculatorSoil for raised garden beds in cubic feet, yards, liters and bags.
- Pool Chlorine CalculatorLiquid chlorine, cal-hypo, dichlor or trichlor to raise free chlorine to your target.
- Lawn Watering CalculatorMinutes to run your sprinklers and gallons per week for a lawn.
- Trench Volume CalculatorTrench volume with sloped sides, loose soil to haul and truck loads.
- Chicken Coop Size CalculatorCoop floor, run, roost and nest boxes for your hens, from university extension guides.
- Seed Starting Date CalculatorWhen to start seeds indoors and set out 34 vegetables from your last frost date.
- Growing Degree Days CalculatorAccumulated GDD from daily highs and lows, with corn stages.
- Egg Incubation CalendarHatch date, last turning day and candling days for chicken, duck, goose, turkey and quail eggs.
- Horse Weight CalculatorEstimate a horse’s weight from heart girth and body length, plus daily hay by percent of body weight.
- Stocking Rate CalculatorHow many animals a pasture carries, acres needed per animal unit and days of grazing, from forage yield and AUM.
- Hay Needed CalculatorTons and bales of hay for the winter for horses, cattle, sheep or goats, with feeding and storage waste and cost.
- Rain Garden Size CalculatorRain garden area from roof size, soil and depth, plus storm and drain-down check.
- Drip Irrigation CalculatorRun time, emitters, gallons per plant and zone size for a drip system.
- Soil Texture CalculatorUSDA soil texture class from percent sand, silt and clay, or a jar test.
- Sprinkler Spacing CalculatorSprinkler heads for your lawn, square or triangular layout, precipitation rate and run time.
- Downspout Count CalculatorHow many downspouts a roof needs from its area and the design rainfall.
- Culvert Size CalculatorCulvert pipe diameter for a driveway or farm crossing from area, runoff and rain.
- Driveway Grade CalculatorDriveway slope in percent and degrees, and whether a car clears the crest.
- Tree Spacing CalculatorDistance between trees, plants for a hedge, and rows and plants for a windbreak.
- Swale Capacity CalculatorFlow and velocity of a grass swale or ditch, checked against the grass velocity limit.
Projects that use them
Pour a concrete slab
Build a paver patio
Fill garden beds
Build a block wall
Lay a new lawn
Build a driveway