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How Much Mulch Do You Need?

Calculate cubic yards of mulch for your garden beds. Enter dimensions and depth — get the exact amount and bag count.

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

O Cálculo

Volume = área (m²) × espessura (m). Para 50 m² a 7 cm: 50 × 0,07 = 3,5 m³. Espessura ideal: 5-7 cm. Mais de 10 cm sufoca as raízes. No Brasil, casca de pinus é a opção mais comum e acessível. A granel: R$50-100/m³. Em sacos: R$150-250/m³.

Tipos no Brasil

Casca de pinus: R$50-100/m³, dura 1-2 anos. Casca de eucalipto: R$40-80/m³. Palha de café: R$30-60/m³, excelente para hortas. Pedra britada: R$80-150/m³, permanente. A casca de café é a melhor opção para hortas — enriquece o solo e retém umidade.

⚡ CalcWolf Insight

The #1 mulching mistake: "volcano mulching" — piling mulch high around tree trunks. This traps moisture against the bark, causes rot, and can kill the tree. Keep a 3-inch gap between mulch and any trunk or stem.

Frequently asked questions
Quanto para 30 m²?
A 7 cm: 2,1 m³. Casca de pinus a granel: R$105-210. Em sacos: R$315-525.
Com que frequência renovar?
Anualmente para orgânica. Adicione 3-5 cm na primavera. Pedra é permanente.
✓ Math logic verified against primary sources → See our verification process
Kevin Glover
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 →
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