Tools
Free lawn care calculators—grass seed, fertilizer NPK, lawn area, liquid mix, top dressing, and soil pH. Extension-style estimates; verify labels locally. Markdown index · llms.txt for AI agents.
- Grass seed calculator Estimate seed needed for a new lawn or overseeding by grass type and area.
- Fertilizer NPK calculator Convert a desired nutrient rate into how much fertilizer product to apply.
- Lawn area calculator Estimate rectangular lawn area from length and width.
- Liquid / sprayer calculator Scale a label liquid rate to your lawn area.
- Top dressing calculator Estimate compost or sand volume (with 5% overage) and bag counts.
- Soil pH amendment calculator Estimate ag lime or elemental sulfur to raise or lower pH.