All calculators
22 free estimators for the stuff you order by the cubic yard. Every one works the same way — enter the area and depth, pick your material, and get the volume, the weight, a bag count and a cost estimate, in metric or imperial. Nothing to install, and the math runs as you type.
Stone & Aggregate
Pick the stone you're buying and get cubic yards, tons and bags. Each one uses its own density, so the tonnage reflects the actual product rather than a generic average.
Soil & Mulch
Soil and mulch behave nothing like stone — they're lighter, sold in different bag sizes, and dirt packs down hard once it's compacted. These account for that.
Projects
Start from what you're building instead of what you're buying. Each one comes pre-set to a sensible depth and material for that job, and you can change anything.
Aquarium
Tank substrate, worked out from your tank's dimensions or its gallon size.
How every YardCal calculator works
All of them run the same two steps. Volume = area × depth, then weight = volume × the material's density. That second step is why the material you pick matters: a cubic yard of mulch weighs around 500 lb, a cubic yard of road base closer to 3,700 lb. Everything converts through metric base units, so you can measure a length in feet, a width in metres and a depth in inches and still get the right answer.
Densities vary with moisture, compaction and supplier, so treat every result as a planning estimate and confirm the final quantity before a big order. If your supplier quotes a density, enter it — every calculator lets you override ours.