DIY

How Much Mulch Do You Need?

Built by Kevin Glover · @gloverbuilds · Verified formula

Calculate cubic yards and bags of mulch for garden beds. Enter bed dimensions and desired depth for exact quantities.

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

In this article

Mulch Coverage Formula
Bulk vs Bags

Berechnung

m³ = Flaeche × Dicke (m). 30 m² bei 7 cm: 2,1 m³. Lose: 20-35 €/m³. Saecke: 3-5 €/70L. Unkrautvlies darunter spart Stunden Jaetarbeit.

Arten

Kiefernrinde: Standard. Pinienrinde: edler, langsamer Zerfall. Holzhaecksel: am guenstigsten.

⚡ CalcWolf Insight

Mulch calculator searches spike March-May as homeowners start spring landscaping. The audience has immediate purchase intent — they need mulch this weekend. Garden center and landscaping supply advertisers pay $3-8 CPC for these searches.

Frequently asked questions

Wie viel fuer 20 m²?▾

Bei 7 cm: 1,4 m³. Lose: ~35-50 €.

Wie oft erneuern?▾

Jaehrlich 3-5 cm nachfuellen.

✓ Math logic verified against primary sources → See our verification process

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 →