Weed Control Coverage Calculator
Calculate how much weed killer or pre-emergent you need for your lawn or garden area.
Weed Control Estimate
Weed control products specify coverage per container. The key is matching the right product to your lawn size.
Common product types and coverage:
| Product Type | Typical Coverage |
|---|---|
| Granular pre-emergent | 5,000–15,000 sq ft per bag |
| Liquid concentrate | 3,000–5,000 sq ft per quart |
| Ready-to-spray | 5,000–10,000 sq ft per bottle |
| Granular weed & feed | 5,000–15,000 sq ft per bag |
Application tips:
- Apply pre-emergent in early spring before soil reaches 55°F (13°C)
- Water in granular products after application
- Avoid applying liquid products when rain is expected within 24 hours
- Do not mow for 2–3 days after application
Lawn area estimation:
Area = Length × Width for rectangular lawns.
Subtract areas for house, driveway, garden beds, etc.