Gardening Calculators
Plan your garden with spacing calculators, soil estimators, and harvest planners. Tools for vegetable gardens, lawns, and landscaping projects.
Related topic hubs
Guided collections that pair gardening calculators with related formulas, converters, and practical use cases.
All Gardening calculators
6 tools, sorted alphabetically
Fertilizer Calculator
Calculate fertilizer product weight from area, nutrient target, and NPK grade, with nitrogen, phosphorus, and potassium amounts shown separately.
Garden Planning Calculator
Plan a productive vegetable or herb bed with spacing-aware plant counts, layout guidance, and area estimates for raised beds and in-ground gardens.
Harvest Time Calculator
Estimate harvest dates from planting date, crop type, and direct-sow or transplant timing with a realistic first-harvest window.
Lawn Seed Calculator
Estimate grass seed needs for new lawns, overseeding, and patch repairs with bag counts and coverage guidance for common grass types.
Plant Spacing Calculator
Estimate how many plants fit in a bed or row from garden size, plant spacing, row spacing, and planting pattern choices.
Soil Calculator
Estimate how much soil, compost, or mulch you need for rectangular, circular, triangular, and L-shaped beds with bag and weight estimates included.