Estimate your compost, topsoil, or mulch requirement using this free UK gardening calculator. Input your garden size and depth, select metric or imperial units, and have the amount immediately displayed in cubic metres, litres, or tonnes.
A Gardener's Maths Made Simple
Ever stared at a pile of compost bags in the garden centre and thought, “How much is too much?” You’re not alone. Getting your garden quantities right can feel like a mix of guesswork and gambling, but not anymore.
Measure Once, Spread Wisely
This handy calculator translates your garden dimensions to instant results. Whether composting with enrichments, filling in a bed with topsoil, or reviving your beds with bark mulch, it's simple to calculate just what you need.
Compost, Topsoil, or Mulch – What's the Difference?
- Compost provides nutrients and structure to your soil.
- Topsoil is lawns' and beds' basis soil.
- Mulch or Bark smothers weeds and holds water.
Metric or Imperial – Your Choice
Gardening won't care if you happen to think in metres or feet. This calculator is reversible, giving your solution in cubic metres, litres, and cubic feet for easy planning.
Compost, Topsoil & Mulch Volume Calculator
Estimate how much compost, topsoil, or mulch you’ll need for your garden area.
Time to Dig Smarter
Say goodbye to guesswork. Put in your size and depth and let the calculator tell you how much to purchase (and maybe stop you from needing to take a return trip to the garden centre).
Final Word
Gardening success starts with the right foundations, and this little calculator keeps your plans on firm ground – literally. If it helped you (or saved your wheelbarrow from yet another unwelcome load), tell us in the comments below! Your feedback allows us to keep building better garden tools for everyone.
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