Free Gardening Calculators

Quick, accurate answers for planning your garden: how much soil, mulch and compost to buy, and how many plants will fit. Every calculator works in imperial and metric units and runs right in your browser.

Raised Bed Soil Calculator

Soil volume and bag count for one or several raised beds.

Mulch Calculator

Cubic yards and bags of mulch for any bed and depth.

Compost Calculator

Compost needed for top-dressing or amending beds and lawns.

Plant Spacing Calculator

How many plants fit in a bed at a given spacing.