Choose the right calculator for your project. All free, all accurate.
Use our main calculator below to calculate weight for any garden material.
Select a material category to calculate exactly what you need:
Calculate topsoil, garden soil, and potting mix weights for any project size.
Wood mulch, bark mulch, straw, and rubber mulch weight and coverage.
Estimate compost and manure needed for your garden beds.
Fine gravel, coarse gravel, pea gravel, and river rock weights.
Play sand, coarse sand, and builder sand for projects.
Lava rock, crushed stone, decomposed granite, and river rock.
Click the material tabs at the top of the calculator, or choose from the dropdown list. We have 24+ materials available including soils, mulches, gravels, and specialty products.
Input the length, width, and depth of your project area. You can use meters, feet, centimeters, or inches — whatever is easiest for you.
Instantly get results including total weight in kg, lbs, and tons, volume needed, area coverage, bags required, and estimated cost.
Use when preparing new flower beds, raised garden boxes, lawn renovations, or filling in low spots. Choose topsoil for general planting, garden soil for pre-mixed results, or potting mix for containers.
Use for spreading a protective layer on existing garden beds. Wood mulch lasts 2-3 years, bark mulch looks premium, straw works for vegetable gardens, and rubber mulch is ideal for playgrounds.
Use for driveways, pathways, drainage systems, and decorative landscaping. Fine gravel for pathways, coarse gravel for drainage, pea gravel for decoration, and river rock for premium looks.
Use for sandboxes, paver bases, drainage layers, or mixing into clay soils. Play sand for children, coarse sand for construction, and fine sand for paver joints.