Free Gardening Calculators
Free online calculators for gardening, landscaping, and growing. Calculate soil, mulch, compost, seed, and planting quantities. Fast, accurate, no signup required.
Soil & Compost
Calculate soil volumes, compost quantities, mulch coverage, and amendment ratios for beds, borders, and containers.
10 calculators â
Lawn & Turf
Calculate grass seed rates, turf rolls, lawn feed quantities, and maintenance schedules for healthy lawns.
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Planting & Spacing
Calculate plant spacing, bulb quantities, hedge distances, and planting layouts for beds and borders.
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Pots & Containers
Calculate pot volumes, compost quantities, drainage layers, and container sizes for container gardening.
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Watering & Irrigation
Calculate water butt sizes, irrigation layouts, sprinkler coverage, and watering schedules.
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Fencing & Borders
Calculate fence panels, posts, concrete, trellis, edging, and garden border materials.
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Paving & Paths
Calculate paving slabs, gravel, sand, block paving, and path materials for patios and garden paths.
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Greenhouse & Growing
Calculate greenhouse sizes, heating requirements, grow light coverage, and propagation needs.
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Vegetable Garden
Calculate vegetable plot sizes, crop yields, seed quantities, and growing requirements for common vegetables.
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Garden Maths
General purpose area, volume, slope, and cost calculators for garden planning and material estimation.
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GardenCalcs â Free Gardening Calculators
GardenCalcs offers 98+ free calculators across 10 categories. Every tool is fast, accurate, and requires no signup. Just enter your values and get instant results.
Browse all 98+ calculators or search above to find exactly what you need.