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Soil Calculator

Get The Right Amount, Every Time.

Quickly calculate how much product you need based on your growing setup. Built to take the guesswork out of growing so you can focus on results.

How Are You Growing?

Select the method you are growing below to calculate how much amount you need.

Activated Compost Package
lose bulk compost
This quantity is best arranged through one of our bulk resellers.
Contact a Bulk Reseller
Contact a Bulk Reseller
lose bulk compost
Your project exceeds volume.  Contact us directly for custom pricing and delivery.
Contact Purple Cow Directly
Contact Purple Cow Directly

Activated Compost Calculator

Activated Compost is intended as a top dressing. Maximum recommended application depth is 2 inches.

Dimensions use feet for length/width/diameter and inches for depth.

Orders over 25 cubic yards require direct arrangement with Purple Cow Organics.

raised mix package

Raised Bed Mix Calculator

potting mix packageall purpose veggie mixpurple cow indicanjaseed starter mix

Soil Mix Calculator

Calculations are estimates.

1 cubic foot = 1,728 cubic inches.

Potting mix sold in 1.5 cu ft bags.

seed started packageseed starter package

Seed Starter Mix Calculator

Calculations are estimates. Actual fill may vary.

1 cubic foot = approximately 25.7 dry quarts.

For 3" pots or larger, use a different mix.

Home Garden How To's

From Martha Stewart’s Garden to Yours: Why Living Soil Matters This Fall

Building environmental awareness by encouraging community involvement in grassroots sustainability initiatives.

How to Revive Your Garden in Late Summer: Soil & Plant Rescue Tips

Revive your late-summer garden with simple, soil-focused steps that restore moisture, nutrients, and biology—helping plants recover and thrive through the rest of the growing season.

Garden Soil vs. Potting Soil: The Essential Difference for Thriving Plants

Understanding the difference between potting mix and garden soil helps you choose the right foundation for your plants.

Organic Gardening: The Easy Way

Discover how organic gardening techniques can improve soil health, reduce waste, and help you grow stronger, more productive plants.

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Be Part of the MOOVEMENT

Together, we can close the loop by transforming green waste material into living soil for results that are Both remarkable and good for the environment.

OMRI listed certification logo

Grow with Purple Cow Organics bringing life back to the soil, supporting the environment, and building healthier communities.

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Healthy communities start with healthy soil.
18 million

pounds of recycled green material per year

Diverting waste from landfills and returning it to the soil.

1.6 Billion

Leaves per year used

Or the weight of over 9000 cows!

4,000

tons of carbon sequestered each year

Offsetting emissions equal to over 1000 cars each year.