🧮 Lawn Care Calculator
Enter your lawn size once — every calculator below updates with it. Everything runs on your phone, no signal needed.
📐 Lawn area
Don't know your square footage? Measure it →
×= sq ft
Got an L-shaped yard, or beds to exclude? Split it into rectangles — add a section for each, or use a negative-sized section for a cutout.
🌱 Fertilizer
Check the bag for its application rate — usually listed as “lb per 1,000 sq ft.”
You’ll need—
Bags needed—
🌾 Grass seed
You’ll need—
Bags needed—
🧪 Herbicide / chemical mix
Enter the rates straight off the product label — this tells you exactly how much to put in each tank.
Total product needed—
Total water needed—
Tank fills—
Product per full tank—
🧮 These are estimates based on the numbers you enter — always follow the actual product label for application rates, mixing instructions, and safety precautions, especially for herbicides and pesticides. When unsure, under-apply and do a second pass rather than guessing high.