About BackyardFigures

BackyardFigures is a small, independent website with free calculators for everyday yard and garden projects – mulch, soil, gravel, grass seed, sod and fertilizer.

The idea is simple: most garden projects start with one question – how much do I need to buy? Our tools answer that in seconds, in the units stores and suppliers actually use.

How we build our calculators

Formulas are based on standard volume and area math. Material weights and seeding or fertilizer rates are typical values from manufacturers and university extension publications. Because products vary, our results are estimates – always check the product label or ask your supplier before ordering.

Feedback

Found an error or missing a calculator? We’d love to hear from you at contact@backyardfigures.com.