Mulch Calculator

Find mulch volume, bags, bulk quantity, and cost.

Measurement guide

Measure each bed, exclude large hardscape, and choose depth after removing or accounting for old mulch.

Record each area separately, keep units consistent, and update the estimate with a final site measurement before ordering.

Assumptions and limitations

Bag volume is nominal; settling, moisture, slope, irregular borders, and bulk delivery rounding affect the delivered amount.

Prices, tax, and delivery are user-entered planning figures, not supplier quotations.

Worked example

A 12 × 10 ft bed at 3 in deep needs 30 cu ft before waste, or fifteen 2-cu-ft bags before adding an allowance.

Frequently asked questions

What waste allowance should I use?

Simple rectangles often start at 5–10%; complex patterns, many cuts, or fragile material justify more based on the installation plan.

Why is the purchase quantity rounded up?

Packages and whole pieces usually cannot be bought fractionally, so purchasing rounds up while the exact quantity remains visible.

Can I order directly from this result?

Not without verification. Re-measure, check the product label, batch and stock, and confirm with the supplier or a qualified professional.

What does the cost estimate include?

Material cost uses the rounded purchase quantity, then adds entered labor, delivery, and tax; unlisted accessories are excluded.