Topsoil & Raised Bed Soil Calculator

Calculate how much topsoil you need for garden beds, raised beds, or lawns

Bed dimensions

Length (metres)

Width (metres)

Bed type

Standard garden beds and borders — 20cm depth recommended

Depth used: 20 cm

Number of beds

Total Volume

1.20

m³

1,200 litres

Weight

1.62

tonnes

Bulk Bags

× 0.6 m³ bags

Estimated Cost

£78–£105

delivered estimate

Notes: Topsoil density based on 1.35 tonnes/m³ (typical moderately damp, freshly cultivated). Bulk bags are typically 0.6 m³ (~800–900 kg). Prices based on BS 3882 quality topsoil delivered — local rates vary. Always order 10–15% extra to account for settlement.