CALCULATOR CATEGORY
Garden & Yard Calculators
Free calculators for soil, seed, lawn, irrigation, landscaping, plant spacing and outdoor project planning.
35 calculators in this category. Choose a tool below.
Match the calculation to the site and the product
Garden and yard tools help translate an area into soil, mulch, seed, fertilizer, irrigation or spacing needs. The calculator organizes the math, while the actual site and product determine the right assumptions. Soil conditions, weather, plant variety and product directions can change what is appropriate, so use the result as a planning estimate and confirm product specific instructions.
- Measure the actual lawn, bed or planting area instead of estimating by eye.
- Use label rates for seed, fertilizer and treatment products.
- Adjust for depth, spacing, coverage and package size when the calculator includes those variables.
Read more: practical calculator guide
Mulch
Estimate mulch cubic feet, cubic yards and bags from bed area and depth.
Soil
Estimate soil volume and bag quantity from garden area and fill depth.
Raised Garden Bed Soil
Calculate soil volume for multiple raised beds with waste allowance.
Plant Spacing
Estimate plants that fit in a rectangular bed using row and in row spacing.
Garden Plant Quantity
Estimate plant quantity and row layout from available planting dimensions.
Seed Spacing
Estimate seed positions from bed dimensions and chosen spacing.
Garden Row
Calculate number of rows, total row length and approximate planting positions.
Square Foot Gardening
Estimate square foot sections and plant capacity using plants per square foot.
Compost
Estimate compost volume and bags from application area and depth.
Topsoil
Estimate topsoil cubic yards and bags from area and application depth.
Potting Soil
Estimate potting mix required for multiple round or rectangular containers.
Planter Volume
Calculate container volume for round or rectangular planters.
Fertilizer Quantity
Calculate fertilizer product quantity from area and the application rate printed on your product label.
Lawn Seed
Calculate grass seed quantity from lawn area and the seeding rate you enter.
Sod
Estimate sod area, pieces or rolls and waste allowance.
Grass Seed Overseeding
Calculate overseeding quantity using lawn area and your selected product or seed rate.
Irrigation Water
Convert irrigation depth over an area into gallons of water.
Drip Irrigation
Estimate drip system water use from emitters, emitter flow and runtime.
Rainfall to Gallons
Convert rainfall depth over a catchment area into potential gallons of water.
Rain Barrel
Estimate roof runoff capture and storage needed for a rainfall event.
Landscape Rock
Estimate landscape rock volume and approximate tons using entered material density.
Gravel
Estimate gravel cubic yards and approximate tons using entered density.
Garden Border
Calculate edging length from rectangular bed dimensions and number of beds.
Fence Post Spacing
Estimate residential fence posts and sections from fence length and target spacing.
Tree Spacing
Estimate tree capacity for a planting area using row and tree spacing.
Orchard Spacing
Estimate orchard tree population from acreage or rectangular dimensions and spacing.
Lawn Area
Calculate lawn area and perimeter from length and width.
Garden Bed Area
Calculate garden bed square footage and perimeter.
Lawn Mowing Time
Estimate mowing time from lawn area, mower width, speed and efficiency.
Hose Fill Time
Estimate time to fill a pool, tank or container from volume and hose flow rate.
Sprinkler Runtime
Estimate sprinkler runtime from desired water depth and measured application rate.
Soil Amendment
Calculate soil amendment quantity from area and the application rate you enter.
Paver Patio
Estimate paver quantity, surface area and waste allowance.
Garden Path Material
Estimate path material volume from path dimensions and depth.
Hedge Plant
Estimate shrubs needed for a hedge from total length and plant spacing.