A small landscape calculator. It runs in the browser and does not keep an account.
Enter a rectangular bed or an area, choose a depth, and the page returns cubic yards, cubic feet, and cubic metres. It then counts how many volume bags cover that amount.
An optional allowance from 0 to 25 percent can be added once. The default is 0, which adds nothing. The page never adds a hidden waste factor.
It is not a playground fall-protection tool and it does not recommend an engineered depth. Sellers sometimes publish play-surface depths and a claim that rubber covers more ground than wood. Those factors are not applied here. You choose the depth.
This is a free estimation tool, not a store. Confirm quantities and product specifications with your supplier before ordering.
Organic mulch and rubber mulch use the same geometric volume. Organic weight is left out because one density would not be fair to every bark, chip, or leaf product.
Rubber can show a weight from a supplier example, or from a density you type. That weight is separate from the bag count. The bag count is always by volume.
Depth and bag sizes follow extension publications named in the FAQ. The optional rubber density is one printed bag pair, and the FAQ says where those numbers disagree.