Free garden calculators
From filling raised beds to spacing seedlings and feeding your lawn, these free garden calculators take the guesswork out of planning. Work out exactly how much soil, fertiliser, gravel, or pool salt you need, and how many plants will fit in your space â so you buy the right amount first time.
Plan your garden project
Start by measuring your bed or plot with the area calculator, fill it using the garden soil calculator, then plan planting with the plant spacing calculator and keep everything healthy with the fertiliser calculator.
Right amount, less waste
Buying the correct quantity saves money and reduces waste. Soil and gravel are much cheaper in bulk bags than small sacks once you need more than about a cubic metre, so knowing your totals up front helps you choose the best way to buy.