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Prices, promotions, styles, and availability may vary. Our local stores do not honor online pricing. Prices and availability of products and services are subject to change without notice. Errors will be corrected where discovered, and Lowe's reserves the right to revoke any stated offer and to correct any errors, inaccuracies or omissions including after an order has been submitted.

Outdoor Project Calculators

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Learn how much concrete, mulch, grass seed or fertilizer you need for your next lawn and garden or landscaping project.

Landscaped lawn.

Take the guesswork out of your grass seed, fertilizer or mulch purchase. Enter your dimensions to calculate how much concrete you'll need for your next masonry project for concrete holes, slabs and walls.

Seed Calculator

Use our calculator to find out how much grass seed you need for your project.

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Fertilizer Calculator

Use this handy fertilizer calculator from Lowe's to determine how much fertilizer you need to buy.

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Mulch Calculator

Lowe's Mulch and Topsoil Calculator helps determine how much you need - including rubber, playground or bark mulch, so you can determine the cost.

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Concrete Hole Calculator

Estimate how much concrete you need to fill a hole before starting your project.

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Concrete Pad Calculator

Find out how much concrete you need for your pad or slab project before you start.

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Concrete Wall Calculator

Estimate how much concrete you need for your wall before starting your project.

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