Garden & Landscape calculators
Compare bulk and bagged soil, mulch, gravel and lawn materials.
13 calculators
Gravel Calculator
Gravel is sold by volume or weight, and a useful estimate must show how those quantities are connected. This calculator starts from a rectangular area and finished depth, then applies a loose-volume ordering factor and a supplier-provided bulk density. It reports cubic feet, cubic yards and US short tons alongside a weight-based material cost.
Garden & LandscapeGravel Driveway Calculator
A gravel driveway can use different materials in its base and wearing surface, so a single gravel depth hides important purchase details. This calculator estimates both layers independently across the driveway and an optional rectangular parking apron. Each layer has its own loose-volume factor and bulk density, allowing you to match two supplier quotes.
Garden & LandscapeMulch Calculator
Mulch purchases are easier to compare when the bag order and bulk order start from the same measured bed area. Choose a rectangular or round bed, deduct paving or unmulched islands, and enter the intended settled depth. This tool converts that geometry into cubic yards and whole bags using the volume on the package.
Garden & LandscapeSoil Calculator
A topsoil order depends on the depth of new material, not the full depth of soil already in the garden. This calculator converts a rectangular area and added depth into placed volume, then applies an entered settlement allowance for ordering.
Garden & LandscapeRaised Bed Soil Calculator
Raised-bed volume should be measured inside the walls and below the intended finished soil line. This calculator subtracts an unfilled headspace and an optional lower filler layer, then divides the remaining volume into three user-selected blend components. It reports each component in cubic feet and whole bags.
Garden & LandscapeCompost Topdressing Calculator
A lawn topdressing or garden-bed compost application is often a thin layer, so a small depth entry can change the order significantly. This calculator accepts fractional inches and converts the measured area into compost volume. An optional loss allowance covers material left in handling equipment or uneven spreading.
Garden & LandscapeSod Calculator
Sod is often sold in pieces, rolls or pallets, and each supplier can package a different amount. This calculator starts with gross lawn area, removes beds and paths, and applies a cutting allowance before rounding to individual pieces and whole pallets.
Garden & LandscapeGrass Seed Calculator
New lawn establishment and overseeding can use different seed rates even when they use the same product. This calculator accepts separate areas and label rates for each job, then combines the pounds needed before rounding to bags. It also displays the coverage that one bag would provide at each rate.
Garden & LandscapeFertilizer Quantity Calculator
A fertilizer label lists nutrient percentages, while a planting plan may state a target amount of nitrogen per unit area. This calculator connects those units: it divides your chosen nitrogen target by the product’s nitrogen fraction to estimate product weight.
Garden & LandscapeLandscape Fabric Calculator
Fabric coverage is less than the number printed on a roll when neighboring strips overlap. This calculator lays parallel strips across a rectangular area, allows for edge turn-up and checks both possible orientations. It chooses the orientation requiring less total roll length, then rounds the total to full rolls.
Garden & LandscapeLandscape Edging Calculator
Edging is purchased in lengths, while a garden bed is usually measured as a shape. This calculator converts a rectangular or circular outline into perimeter, subtracts access gaps and rounds to full edging sections. It then estimates section joints and stakes from your entered fastening interval.
Garden & LandscapeRetaining Wall Block Calculator
A modular landscape wall is easier to count course by course than by using face area alone. This calculator rounds the required exposed height to full courses, adds buried courses and counts the blocks needed across each course. Caps are estimated with their own length.
Garden & LandscapeRiver Rock Calculator
Decorative rock beds often surround an island, tree circle or other feature that should not be included in the fill. This calculator supports a rectangle or a circular ring so the excluded center is deducted geometrically. It converts the intended rock depth into volume and uses your supplier’s loose bulk density for a weight estimate.
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Plan before you buy
How to Calculate Gravel Driveway Layers and Tonnage
A useful gravel driveway estimate is a layer-by-layer purchase list. The aggregate under the surface may have a different specification, depth and density from the top layer, and suppliers may sell one or both by weight. This guide explains how to connect measured area, compacted depth, loose volume and estimated tonnage without pretending that the calculator can design the driveway.
6 min read · Project guideGarden & LandscapeMulch and Topsoil: Compare Bulk Yards with Bags
Bagged mulch and bulk topsoil can be easy to compare incorrectly. One price is printed per bag, another per cubic yard, and a third may be stated by weight. A fair comparison starts with the same required volume and keeps the material itself suitable for the intended job.
6 min read · Project guideGarden & LandscapeHow Much Soil and Compost Does a Raised Bed Need?
Raised-bed soil estimates become more useful when they distinguish the empty box from the growing mix that will actually be purchased. Wall thickness, top headspace and any intentionally excluded lower layer change the volume. A blend then creates several separate material orders, and each bag size can round differently.
6 min read · Project guide