Lawn Care Calculator
Calculate lawn fertilizer, overseeding, watering, and mowing needs based on grass type, lawn area, and region.
Inputs
sq ft
Results
Annual Nitrogen Needed
10 lbs
≈ 2 bags of sugar
Grass TypeTall Fescue
Fertilizer Applications / Year3
Fertilizer per Application (20-0-5)16.67 lbs
25 lb Bags / Year2
Overseeding Seed Needed22.5 lbs
Weekly Water Needed1 in
Weekly Water (Gallons)3,115 gal
Monthly Water (Gallons)13,488 gal
Mow Every7 days
Recommended Mowing Height3-4
How to Use This Calculator
- Measure your lawn area in square feet and enter your grass type — different species have very different fertilizer and mowing needs.
- Select your region (Northeast, Midwest, South, etc.) to adjust watering recommendations for your climate.
- Choose your current lawn condition — poor, fair, or good — to get the right overseeding rate.
- Review the Annual Nitrogen Needed and the number of fertilizer applications per year (using a 20-0-5 fertilizer as the reference).
- Note the Overseeding Seed Needed (lbs), Weekly Water requirements (inches and gallons), and recommended mowing interval and height.
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