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Tools
free · browser-onlyThe desk puts the calculators beside the lawn record. Each opens as a real working tool and sends nothing you type to a server.
Lawn area
Measure an irregular lawn section by section.
Spreader
Turn the bag analysis into a product rate and check calibration.
Sprinkler run time
Convert a catch-can test into minutes.
Sprayer
Calibrate carrier volume and tank mix.
N-P-K
See what each bag number puts on the lawn.
Mowing
Use the one-third rule to plan a safe cut.
Topdressing
Turn depth and area into bulk volume or bags.
Rate converter
Translate per-acre labels to a per-1,000 ft² basis.
Soil jar test
Measure settled sand, silt and clay fractions.
Grass clippings
Estimate rough volume from a mow.
Coverage & cost
Work out bag coverage and cost at your entered rate.
Lime
Calculate a quantity using the calculator’s soil inputs.
Seeding
Calculate a seed quantity range for your lawn area.
Photo tools
This website does not offer photo uploads or identification, including when you are signed in. Grass ID, Weed ID and Disease ID are in the Android app, under More → AI agents, and the app shows whether each one is on.