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CalculatorGe

Calculadora de gravilha

Estimate how much gravel, crushed stone, sand or topsoil you need for a driveway, path or base, by volume and by weight in tons.

Estimativas apenas para planeamento. Acrescente margem de desperdício, cumpra os regulamentos locais e peça a um profissional qualificado que verifique trabalhos estruturais ou elétricos.

O guia abaixo ainda não está disponível em português e é apresentado em inglês. A calculadora está totalmente traduzida.

Como usar esta calculadora

  1. Choose a material, or enter a custom density from your supplier.
  2. Enter the length, width and depth of the area. Driveways typically need 4–6 in (10–15 cm) of compacted aggregate.
  3. Add a small allowance for compaction and uneven ground.

Fórmula

Suppliers sell aggregate by weight, so volume is converted with the material's bulk density.

Volume = L × W × D × (1 + allowance)
Weight = volume × density
1 US ton = 2,000 lb = 907.18 kg; gravel ≈ 1.4 tons per cubic yard

Example

  1. 30 × 10 ft path, 4 in deep: 100 ft³ = 3.70 yd³ (2.83 m³).
  2. +5% = 2.97 m³ × 1,680 kg/m³ ≈ 4.99 t ≈ 5.5 US tons.

Perguntas frequentes

How much does a cubic yard of gravel weigh?

Typically 2,500–3,000 lb (about 1.25–1.5 US tons), depending on stone type, size and moisture.

Should I account for compaction?

Yes. Crushed stone compacts by 10–15%; increase the allowance if you'll compact with a plate compactor.

What depth do I need for a driveway?

Often a 4–8 in (10–20 cm) compacted base of larger stone plus a 2–3 in top layer, depending on soil and traffic.