Compost Calculator

Calculate compost quantities for beds, borders and planting areas.

Compost for a 2m by 1.5m area at 100mm

For an area measuring 2 metres by 1.5 metres at 100mm deep, this estimate includes compost volume and bag equivalents.

  • Compost volume0.30 m³
  • Bulk bags1
  • 50L bags7

Results - Compost Calculator

  • Compost volume0.30 m³
  • Bulk bags1
  • 50L bags7

How this compost calculator works

It converts your planting area and mulch depth into cubic metres, then suggests bulk bags and bagged compost quantities.

Disclaimer

Material quantities shown are estimates for guidance only. Although typical UK wastage and compaction allowances have been included, actual requirements may vary depending on site conditions, installation methods, and material differences. Please confirm quantities with your installer or supplier before ordering. We accept no liability for inaccuracies, financial loss, or delays arising from the use of these estimates.