About Us
Backyard Calculators is a free set of tools that turn your measurements into a material list, so you can plan a backyard project and buy the right amount.
Why we built this
Backyard projects stall on small questions. How many deck boards do I need? How much gravel fills this path? How far apart should the fence posts go? The answers are simple math, but the math is easy to get wrong with a tape measure and a notepad.
Backyard Calculators puts that math in one place. You enter your length, width and height, and the calculator returns the amount to buy, with the formula shown so you can check it.
Who it is for
Homeowners planning a weekend build, DIY builders pricing materials, and landscapers who need a fast estimate before a site visit.
Why Choose Backyard Calculators
Most calculator pages give you a number and stop. We show how the number is made, so you can order with confidence.
Built around real jobs
Each calculator asks for the measurements you already have on site, in feet, inches, yards or metres.
Waste factor included
Pavers, boards and gravel come with an extra-material allowance, so you order enough the first time.
Formulas shown
Every result sits beside the math behind it, so you can check the number yourself.
Quick on a phone
Large inputs and no signup. Measure, calculate and shop while you stand in the yard.
Frequently Asked Questions
Quick answers about Backyard Calculators and how our tools work.
What is Backyard Calculators?
Backyard Calculators is a free set of tools that turn your measurements into a material list for decks, fences, patios, sheds, pools and gardens.
Do I need an account to use the calculators?
No. Open any calculator and use it right away, with no signup and no fee.
How do you keep the calculators accurate?
Each calculator starts from standard formulas, and every result shows the math so you can check it. We review a calculator whenever a reader reports a problem.
Which projects can I plan here?
You can plan decks, fences, patios, sheds, pools and gardens, with single-purpose tools for gravel, topsoil, pavers, fire pits, sprinklers and lighting.
Can I suggest a new calculator?
Yes. Tell us what you are building from the contact page and we will consider adding it.
Browse Our Categories
Explore every calculator by project type, from decks and fences to pools and gardens.