Lawn answers, one click away.
Fertilizer, lawn size, watering, cost, and live soil temperature. Right in your browser toolbar. No account, no sign-in. A result the moment you open it.
Pinned in your toolbarWhat Grass Is This?The answers you Google, without leaving your tab.
Pick a tool, get a number, and jump to the full guide when you want the detail.
Fertilizer
How much to apply for your grass, size, and season, with NPK and a cost estimate.
Lawn Size
Square footage from length x width, plus mower, spreader, and product amounts.
Watering
A weekly schedule tuned to your grass, soil, and irrigation system.
Cost Estimator
A yearly lawn-care budget for your region, DIY vs professional.
Live Soil Temp
Current soil temperature for your ZIP and what it means for seeding.
Install, pin, calculate.
Add to Chrome
One click from the Web Store. No account, no sign-in, nothing to configure.
Pin & open
Pin the icon to your toolbar, or press Alt+Shift+G. A result shows the moment it opens.
Go deeper
Every result links to the full tool on the site, with your inputs carried over.
The lawn math, minus the tab juggling.
- Open a new tab and search for a calculator
- Re-enter your grass type and lawn size every single time
- Scroll past ads to find the actual answer
- Lose your place when you switch back to your work
- One click from your browser toolbar
- Your grass, size, and ZIP remembered across all 5 tools
- A result the instant the popup opens
- No ads, no account, no tab-switching
Frequently asked questions
Is it really free?
Yes, completely free. No account, no sign-in, no trial, and no paid tier to upgrade to.
Do you collect my data?
Your calculator inputs are saved only in Chrome extension storage on your device so the five tools can reuse them. The soil-temperature tool sends the ZIP code you type to fetch a current reading. The extension does not collect your browsing history or account information.
Do I need an account?
No. Click the toolbar icon and you get a result the moment it opens, no sign-in required.
Does it work offline?
Fertilizer, lawn size, watering, and cost work fully offline. Soil temperature needs a connection to fetch the current reading for your ZIP.
How do I open it quickly?
Pin it to your toolbar for a one-click open, or press Alt+Shift+G from any tab.
Which grass types are supported?
All the common US lawn grasses, including Bermuda, Zoysia, Tall Fescue, Kentucky Bluegrass, Perennial Ryegrass, and St. Augustine.
Keep the calculators one click away.
Add it to Chrome and never load a page just to do the lawn math again.