Raised bed soil calculator
Calculator
Estimate cubic feet, cubic yards, and common bag counts for a rectangular raised bed, including a Mel's Mix breakdown for Square Foot Gardening.
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Planning tools worth bookmarking
Straight answers on quantities and timing before you buy materials or start seeds, without the guesswork.
Bags and cubic yards of soil, mulch, and compost are easy to over- or under-order by a lot when you're estimating by eye. Frost dates and drip line lengths are easy to get wrong in the other direction — not enough measurement, too much guessing. Each calculator here does one specific job with real numbers, not a generic estimate.
Soil & Materials
How much to buy
Container soil calculator
Calculator
Estimate how much potting mix you need for a round or rectangular container before you fill it.
Open calculatorMulch calculator
Calculator
Work out how many bags or cubic yards of mulch are needed for a bed, border, or path.
Open calculatorCompost calculator
Calculator
Estimate how much compost to blend into a bed without overapplying it.
Open calculatorPlanning & Timing
What to do and when
Drip irrigation planner
Calculator
A planning guide for line length, timer placement, and emitter spacing in a basic bed setup.
Open calculatorSeed starting calculator
Calculator
Enter your last spring frost date to see when to start seeds indoors and when it's safe to move common crops outside.
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