DIY

How Much Carpet Do You Need?

Built by Kevin Glover · @gloverbuilds · Verified formula

Calculate square yards of carpet and padding for any room. Includes seam placement and cost estimate.

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

In this article

Measuring for Carpet
Padding Matters

O Cálculo

Carpete em rolo: largura padrão de 3,66 m (12 pés) no Brasil. Comprimento = comprimento do cômodo + 10 cm. Em placas modulares (50×50 cm): área + 5-10% perdas. No Brasil, carpete modular é mais popular para escritórios. Para residências: tapetes grandes são preferidos ao carpete parede-a-parede.

Alternativas no Brasil

O carpete residencial perdeu popularidade no Brasil por causa do calor e alergias. Alternativas populares: tapetes de área (persas, kilim, sisal) sobre piso frio, ou vinílico que imita madeira. Para home office: tapete de 2×3 m é ideal sob a mesa.

⚡ CalcWolf Insight

Carpet stores often quote price per square yard but measure rooms in square feet. To compare prices fairly: multiply the per-yard price by 0.111 to get the per-square-foot price. A $36/sq yd carpet = $4/sq ft.

Frequently asked questions

Quanto para quarto de 12 m²?▾

Rolo: ~14 m² com margem. Placas 50×50: 48 placas + 5 extra.

Carpete ou tapete no Brasil?▾

Tapetes de área são preferidos — removíveis, laváveis, e melhor com o clima brasileiro.

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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 →