Category
Landscaping Calculators
Bulk landscaping materials are sold by volume, by weight or by the bag. These calculators handle all three, so you can compare a bulk delivery with bagged material and order the right amount the first time.
Gravel CalculatorCubic yards, tons or tonnes of gravel and crushed stone for paths, beds and bases.Open calculator Pea Gravel CalculatorPea gravel for patios, paths and play areas — volume, weight and number of bags.Open calculator Gravel Driveway CalculatorStone for a layered gravel driveway — tons per layer, compaction allowance and truckloads.Open calculator Mulch CalculatorHow many cubic yards or bags of mulch you need for garden beds at any depth.Open calculator Topsoil CalculatorTopsoil volume, weight and bags for lawns, raised beds and levelling.Open calculator
Which calculator do I need?
- Gravel Calculator
- Calculate how much gravel or crushed stone you need by volume and by weight, for any rectangular, circular or measured area.
- Pea Gravel Calculator
- Estimate pea gravel for patios, walkways, dog runs and play areas — by volume, by weight, or in bags.
- Gravel Driveway Calculator
- Calculate stone for a layered gravel driveway, including a compaction allowance, the weight of each layer and how many truckloads to order.
- Mulch Calculator
- Find how much mulch your garden beds need, in cubic yards, cubic metres or bags, at the depth you choose.
- Topsoil Calculator
- Work out how much topsoil you need for a new lawn, raised bed or levelling job — by volume, by weight or in bags.
Ordering landscape materials
Loose materials settle and compact once they are spread, rolled or watered, so the depth you measure after the job is less than the depth you tipped out. For stone that will be compacted, adding 10–20 % to the finished volume is a common allowance; for mulch and soil, a little extra covers settling.
Suppliers sell by the cubic yard, cubic metre, ton, tonne or bag. To compare offers, convert everything to the same unit using the density the supplier gives for their product, then add any delivery charge to the bulk price.
- Check the weight before collecting material yourself: a cubic yard of gravel commonly weighs around 1.4 US tons, more than many cars and small trailers can legally carry.
- Choose a delivery spot the truck can reach without damaging lawns, kerbs or drains, ideally close to where the material will be used.
- For mulch and topsoil, ask whether the product is screened and how moist it is; both affect coverage and weight.