Gardening Calculators
Plan your garden with spacing calculators, soil estimators, and harvest planners. Tools for vegetable gardens, lawns, and landscaping projects.
View our calculators
Fertilizer Calculator
Estimate fertilizer needs by area, nitrogen target, and NPK grade with practical application-rate and nutrient-breakdown results.
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
Calculate how many plants fit in a garden area using grid, triangular, or single-row spacing. Compare area per plant and see how triangular planting can increase capacity in the same bed.
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.