Measure Soil, Mulch & Mixes with Confidence
GardenCalc gives backyard vegetable growers, allotment owners, and landscapers fast, accurate calculations for raised bed volumes, custom soil recipes, mulch bag counts, and bagged versus bulk cost breakdowns.
Instant Raised Bed Estimator
Quick calculation for a single bed. For multi-bed setups with settling allowances, use the full calculator.
Equals approx. 16 standard (2 cu ft) soil bags.
Gardening Calculators Directory
Dedicated tools crafted for the specific materials, geometries, and pricing structures of home gardening.
Raised Bed Soil Calculator
Add and manage multiple raised beds with distinct lengths, widths, and depths. Supports mixed units (feet, inches, centimeters, meters) and calculates total cubic yards, liters, and bag equivalents with an optional organic settling factor.
Soil Mix & Blend Calculator
Design custom raised bed blends combining topsoil, compost, perlite, and organic amendments. Balance ingredients by percentage with one-click normalization and calculate volume breakdown per ingredient.
Garden Mulch Calculator
Calculate cubic feet, cubic yards, and whole bag counts (1.5, 2.0, or 3.0 cu ft) for wood chips, shredded bark, or straw based on ground dimensions and depth. Includes optional price comparisons.
Soil Bag vs. Bulk Cost Calculator
Determine the true economic tipping point between buying retail bags at the garden center and ordering a dump truck delivery. Factoring in delivery fees, whole-bag rounding, and price-per-cubic-foot unit comparisons.
Designed for Accuracy & Horticultural Reality
GardenCalc is built around real gardening physics, not simplistic textbook geometry.
Every formula is displayed openly with worked examples. No black-box algorithms or hidden assumptions.
Calculations execute locally in your web browser. We do not transmit or store your garden dimensions on any external server.
Organic matter naturally consolidates over 60 days. Our calculators allow optional allowance percentages to prevent sunken mid-season beds.