Cover a surface
For mulch layers or compost top-dressing.
Independent garden math Formulas and assumptions included
GardenMeasureTry a calculatorSix free garden tools
Choose the right garden calculator
Measure the space, select what you are buying, and get the volume, bag count, bulk quantity, and cost inputs that fit that job.
Start with the job
What are you measuring?
Fill a bed or level an area
For general soil, raised beds, or topsoil layers.
Fill pots or planters
For round, tapered, rectangular, or grow-bag containers.
All calculators
Pick the material, then enter your measurements.
Mulch Calculator
Turn bed dimensions into cubic yards, bags, and cost.
Best for
Open mulch calculator Mulch depth, coverage, bags, bulk volume, and purchase cost.
Soil Calculator
Estimate soil for borders, new beds, and lawn projects.
Best for
Open soil calculator General garden-bed fill volume, bags, and bulk delivery.
Raised Bed Soil Calculator
Plan several beds and split the fill into a custom mix.
Best for
Open raised beds calculator Multiple raised beds, missing fill depth, and mix components.
Topsoil Calculator
Compare bulk yards with bagged topsoil before you buy.
Best for
Open topsoil calculator Topsoil layers, supplier density, bags, bulk quotes, and weight.
Compost Calculator
Measure a top-dressing layer or one part of a soil blend.
Best for
Open compost calculator Compost applications, area groups, bags, and delivery.
Potting Soil Calculator
Total the mix needed for pots, planters, and grow bags.
Best for
Open potting soil calculator Container geometry, fill level, liters, bags, and cost.
Before you order
A useful estimate still needs three honest checks.
1
Measure
Use inside dimensions and the actual depth you need to fill.
2
Match
Enter the real bag size, supplier unit, price, and delivery fee.
3
Verify
Review access, minimum orders, material condition, and local guidance.
Last updated 11 November 2026