Free tools
Do the math before you buy.
Nine calculators for the decisions that actually change a lawn. Every formula is shown, every result is free, and no account is required.
Lawn size calculator
Turn length, width, or radius into square feet, square yards, and acres.
Open toolGrass seed calculator
Estimate seed weight and bags for a new lawn, overseeding, or a repair.
Open toolFertilizer calculator
Work out product weight, bags, and nutrient rates from an N-P-K label.
Open toolOverseeding planner
Find your next seeding window and the seed quantity for your lawn.
Open toolWatering calculator
Convert a weekly water target into sprinkler runtime and gallons.
Open toolLawn cost calculator
Compare an annual DIY materials estimate with a professional service quote.
Open toolGrass selector
Get a shortlist of grass types based on climate, sun, traffic, and upkeep.
Open toolSoil temperature
See recent soil temperature at 6 cm for a ZIP code or your location.
Open toolProduct label comparison
Compare two products by cost and nutrients per 1,000 sq ft.
Open toolWant a plan, not just a number?
The free seasonal planner uses the same math and your lawn profile. No account required.
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