Landscaping & Outdoor
Mulch, soil, gravel, sand, seed and fertilizer quantities.
27 tools
- Mulch CalculatorCalculate cubic yards and bags of mulch for any bed size and depth.
- Mulch Bag CalculatorFind exactly how many 1.5, 2 or 3 cu ft bags of mulch to buy.
- Soil CalculatorWork out cubic yards and tons of soil for garden beds, lawns and fill.
- Topsoil CalculatorCalculate how much topsoil to order for lawns, leveling and garden beds.
- Gravel CalculatorCalculate cubic yards and tons of gravel for driveways, paths and bases.
- Sand CalculatorCalculate cubic yards and tons of sand for pavers, sandboxes and leveling.
- River Rock CalculatorCalculate tons of river rock for beds, dry creek beds and drainage.
- Landscape Stone CalculatorCalculate yards and tons of decorative landscape stone by type.
- Dirt Fill CalculatorCalculate fill dirt needed for a hole or grade change, with compaction allowance.
- Cubic Yard CalculatorConvert length, width and depth into cubic yards, cubic feet and cubic meters.
- Raised Bed Soil CalculatorCalculate soil for one or more raised garden beds in cubic feet, yards and bags.
- Potting Soil CalculatorCalculate potting mix for round pots in quarts, liters and cubic feet.
- Grass Seed CalculatorCalculate pounds of grass seed by grass type for new lawns or overseeding.
- Lawn Fertilizer CalculatorCalculate pounds of fertilizer product to apply a target rate of nitrogen.
- Compost CalculatorCalculate cubic yards and bags of compost to top-dress lawns or amend beds.
- Peat Moss CalculatorCalculate compressed peat moss bales needed to amend or top-dress an area.
- Lawn Area CalculatorCalculate lawn square footage for rectangles, circles, triangles and L-shapes.
- Tree Mulch Ring CalculatorCalculate mulch for rings around trees, subtracting the trunk.
- Sod CalculatorCalculate sod pieces, rolls and pallets for any lawn area, with waste and pallet coverage.
- Pond CalculatorCalculate pond volume in gallons and the liner size you need, including depth and anchor overlap.
- Plant Spacing CalculatorCount plants for a bed from spacing and pattern — square grid or staggered triangular planting.
- Firewood CalculatorConvert a firewood stack into cords and face cords using the legal 128 cu ft cord definition.
- Pine Straw CalculatorEstimate pine straw bales for beds and islands from area and published bale coverage.
- Lawn Mowing Cost CalculatorPrice a mowing job from lawn area and your own rate, with a mowing-time estimate from deck size and speed.
- Sprinkler Run Time CalculatorTurn a catch-can test into your sprinkler precipitation rate and the run time to apply a target depth.
- VPD CalculatorCalculate vapour pressure deficit from air temperature and humidity with the Tetens formula, with a leaf-temperature offset.
- DLI CalculatorCalculate daily light integral from PPFD and photoperiod, and the PPFD or hours needed to hit a target DLI.
About these tools
Landscaping materials are sold by volume, weight or bag — and the three rarely line up neatly. These calculators turn the dimensions of a bed, lawn or path into the exact cubic yards, tons or bags you need, so you can order once and avoid a second delivery fee.
Every tool supports imperial and metric units. Material weights use typical loose densities stored in one reference file; moisture and particle size change real weights by about 10%, so round up when ordering by the ton.
Frequently asked questions
How do I convert square feet to cubic yards?
Multiply square feet by depth in inches, then divide by 324. 100 sq ft at 3 in is 0.93 cubic yards.
Should I order bulk or bagged materials?
Bags make sense under about 2 cubic yards. Above that, bulk delivery is usually cheaper even with a delivery fee.
How much extra material should I order?
Add 5–10% for uneven ground and spillage; add 15–25% for fill that will be compacted.
Why do yards and tons give different answers?
Materials differ in density: a yard of lava rock weighs about half a ton, a yard of crushed stone about 1.35 tons.
Do these tools work for metric measurements?
Yes. Switch to metric to enter meters and centimeters; results show cubic meters and tonnes.