Our convenient compost calculator takes the guesswork out of ordering compost for pots, planters and beds. Simply select the appropriate shape for your pot or planter, or create custom dimensions for beds, and enter the dimensions. Our handy calculator will then work out how much compost you need. We stock a wide variety of quality branded composts for every type of gardening project. If you require help selecting the correct compost or fertiliser for your needs our horticultural team are on hand to offer help and advice.
Choose your shape
Enter your size
You will need 7 litres of compost in total
Please note that all of our calculations have a margin of error of +/- 10%.We recommend
Westland Jack's Magic Compost 50:50 - 50L
2 for £16! Jack's Magic All-Purpose Compost 50:50 is a new and improved blend enriched with BIO3 ..
£8.99 £7.49
Westland New Horizon All Plant Peat Free Multi Purpose Compost - 50L
2 for £16 New Horizon All Plant Compost is a 100% sustainable, naturally peat free formulation th..
£8.99 £7.49
Melcourt SylvaGrow Organic Compost - 40L
Melcourt SylvaGrow Organic Compost is an RHS endorsed, 100% peat free, organic growing medium for ga..
£11.99 £9.99