About Topsoil Calculator
Topsoil Calculator is a free set of landscaping estimators for gardeners, landscapers and contractors. Every calculator on this site converts measurements into cubic yards, cubic metres, bag counts and weight, and every one of them is free to use with no sign-up. Nothing on this site collects a delivery quote or connects you to a supplier. The tools exist to help you work out how much material a project needs before you go and get a quote for it elsewhere.
Each calculator uses a published bulk density figure for the material it covers rather than a live pricing feed or a per-region average. Topsoil, for example, is calculated at 2,410 lb/yd³ throughout this site, and every other material, including fill dirt, compost, sandy loam, potting soil, and the additional materials used on individual tool pages, has its own fixed density figure used consistently everywhere that material appears. These are estimates for planning a project, not a substitute for a supplier's own delivery ticket, which will reflect the specific moisture content and compaction of the load you actually receive.
Density Figures and Sources
The density figures used across every calculator on this site are industry-standard bulk material figures, the same general figures landscaping suppliers, extension services and contractors use for planning, not measurements taken from a specific quarry, farm or supplier. They are kept consistent across every calculator that uses a given material, so a cubic yard of topsoil weighs the same whether it's calculated on the homepage, the raised bed calculator, or the weight converter.
Actual delivered material can and does vary from these figures by region, by supplier, and by how wet or compacted a particular load happens to be, the same variables covered in detail on the soil weight calculator. Treat every result on this site as a planning estimate to order against, and confirm the exact weight of a large or expensive order against the supplier's own scale ticket rather than this site's figures alone.
Every Calculator on This Site
- Topsoil Calculator
Volume, bags and weight for any garden, lawn or raised bed.
- Raised Bed Soil Calculator
Size a soil-and-compost blend for any raised bed footprint and depth.
- Lawn Dressing Calculator
Work out a thin top-dressing layer for levelling and overseeding.
- Fill Dirt Calculator
Estimate structural fill for grading, hardscapes and retaining walls.
- Soil Weight Converter
Switch between cubic yards, tons, pounds and kilograms by material.
- Sod Prep Calculator
Plan the base layer a new turf install needs before the sod arrives.
- Compost & Amendment Calculator
Measure compost by volume or amendment by weight per 100 sq ft.
- Mulch Calculator
Cover beds and borders with the right mulch depth, bagged or bulk.