Landscaping

Mulch Calculator

Decision support

What this tool helps you decide

Best for

Landscape-bed mulch volume and bag coverage.

Enter

Bed area, installed depth and labeled bag volume.

You get

Cubic yards, cubic feet and complete bags.

Check before buying

Choose depth for the plants and drainage; weight is not a substitute for labeled volume.

What you will get

1. Needed

See the estimated project quantity from your measurements.

2. Buy

Add waste and round to complete bags, boxes, cans, bundles or delivery quantities.

3. Check

Review product coverage, site conditions, local requirements and supplier details before ordering.

Quick answer: Estimate mulch cubic yards, cubic feet, and bag quantity from bed size, depth, project allowance, and bag volume. Start with actual measurements, use the product label for coverage or yield, and treat the result as a planning estimate until site conditions and supplier requirements are confirmed.

Estimate cubic yards and bags of mulch from bed dimensions, installed depth, and package volume.

Project inputs

Enter bed measurements

Before you order

Re-check the measured dimensions Confirm product yield or package coverage Confirm waste and whole-package rounding Confirm delivery, tax and supplier fees Check local code or professional requirements

Use the result card above to copy, print or share the estimate, then verify the final order with the product label or supplier quote.

How the mulch calculator works

Bed area is multiplied by mulch depth to get cubic feet. The calculator then applies your allowance and converts the result into cubic yards and complete bags.

volume = area × depth

Example

A 20 × 8 ft bed at 3 in deep requires 40 ft³ before allowance, or about 1.48 yd³.

Measure installed depth: settling, uneven beds, and existing mulch can change how much new material is actually needed.