Lawn care
Grass Seed Calculator
Enter your lawn area and whether you're starting a new lawn or overseeding a thin one. Rates below are for tall fescue, the Triangle's usual cool-season grass.
At a glance
- Job
- 2 rates
- Answer in
- lbs
100 sq ft needs:
0.6 lbs
Tall fescue seeds best in early fall in the Triangle. New lawns need a heavier rate than overseeding an existing one; follow your seed bag if it differs.
Lawn care
Knowing the pounds is half of it
The right rate on the wrong date still gives you a thin lawn. Tall fescue wants early fall in the Triangle, and the warm-season grasses want late spring.
How this is worked out
No hidden fudge factor. This is the whole calculation.
- Length times width gives the area in square feet.
- The rate you pick sets how far one unit goes, from new lawn (about 6 lbs / 1,000 sq ft) to overseeding (about 3.5 lbs / 1,000 sq ft).
Common questions
- How much grass seed do I need?
- Enter your lawn area and whether you're starting a new lawn or overseeding a thin one. Rates below are for tall fescue, the Triangle's usual cool-season grass. Enter your measurements above and this calculator gives you the amount, including a waste allowance where it applies.