DIY

How Much Grass Seed Do You Need?

Built by Kevin Glover · @gloverbuilds · Verified formula

Calculate pounds of grass seed for new lawns, overseeding, and repair. By grass type, area, and application rate.

📅 Updated April 2026 ✅ Formula verified 📖 4 min read 🆓 Free · No sign-up

In this article

Seeding Rates by Grass Type
Timing Is Everything

Dosagem

Gramado novo: 30-40 g/m². Recuperação: 15-25 g/m². Para 200 m² de gramado novo: 200 × 0,035 = 7 kg. No Brasil, as sementes mais comuns: grama Bermuda, Esmeralda (sementes raras, geralmente por placas), e Batatais. Semeie na primavera (set-nov) ou outono (mar-mai).

Dicas

Prepare o solo: revire, afine, nivele e compacte levemente. Semeie em duas passadas cruzadas. Cubra com fina camada de terra peneirada. Irrigue em aspersão fina 2-3× por dia por 2-3 semanas. No Brasil, grama por placas é mais comum que por sementes — resultado mais rápido e uniforme.

⚡ CalcWolf Insight

New grass seed needs to stay consistently moist for 14-21 days after sowing. The #1 cause of seeding failure is letting the surface dry out during germination. Water lightly 2-3 times daily for the first 2 weeks — do not flood, just keep the top 1/2 inch moist.

Frequently asked questions

Quantos kg para 100 m²?▾

Criação: 3-4 kg. Recuperação: 1,5-2,5 kg.

Sementes ou placas?▾

Placas: resultado imediato, mais caro (R$3-8/m²). Sementes: mais barato mas 60-90 dias até cobertura. No Brasil: placas são preferidas.

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Kevin Glover · @gloverbuilds

Founder, CalcWolf · GLVTS · Blickr

All formulas sourced from primary references — IRS publications, peer-reviewed research, and official standards. Results are tested against independent reference calculators before publishing. Rates and brackets updated when official sources change. Editorial policy →