MC360 // Landscaping & Grounds
SEED THE LAWNAT THE RIGHT RATE.
How much grass seed do I need? New lawns run 4–8 pounds per 1,000 square feet depending on the grass — overseeding takes half that. Enter square footage and grass type; the calculator returns pounds for the full seeding and the overseed rate.
The Instrument
The Grass Seed Calculator, up close
Inputs
Outputs
Opens the live calculator on matcalc360.pro
Run your own numbersProcess
Three steps. Zero guesswork.
Enter your measurements
Length, width, depth, pitch — the numbers you already pace off on site. No blueprints, no signup, no spreadsheet.
Calculate materials
The calculator applies the right formulas, density factors and waste allowances for your specific material.
Get your results
Squares, yards, tons, boards or sheets — a clean order list you can hand straight to the supplier.
Field Guide
SEEDING RATES WITHOUT THE BAG-READING
Pounds per thousand is the unit
Every grass has a seeding rate in pounds per 1,000 square feet: tall fescue 6–8, perennial rye 5–8, Kentucky bluegrass 2–3, Bermuda just 1–2 because its seed is tiny. Measure the lawn, divide by 1,000, multiply by the rate — that is the order.
- Fescue: 6–8 lb per 1,000 ft²
- Bluegrass: 2–3 lb per 1,000 ft²
- Bermuda: 1–2 lb per 1,000 ft²
New lawn vs. overseed
Overseeding an existing lawn takes half the new-lawn rate — the established grass fills the gaps. Bare dirt and full renovations get the full rate, and slopes or patchy germination justify bumping 10–15% above it rather than reseeding twice.
- Overseed = half the full rate
- Bare soil = full rate +10%
- Slopes: bump for wash-off
Timing beats rate
The best seed at the wrong time loses to average seed at the right one. Cool-season grasses (fescue, rye, bluegrass) want early fall soil; warm-season grasses (Bermuda, zoysia) want late spring. Cover with straw or a seed mat and keep the top inch moist until germination.
- Cool-season: seed in early fall
- Warm-season: late spring
- Keep top inch moist 2–3 weeks
Keep calculating
THE SEEDING UNIT
7 lb
of tall fescue per 1,000 square feet of new lawn — the rate behind every bag count
Related Calculators
Keep the takeoff going
FAQ
Questions from the field
Straight answers on units, waste factors and ordering — the details that decide whether the job finishes on the first delivery.
Ready when you are
STOP GUESSING.START BUILDING.
Free. No signup. Built for the jobsite.