About SureAmount

What SureAmount is

SureAmount is a set of free home-improvement calculators for homeowners and DIYers who are about to start a project. Each one plans the whole job, not just the math: the quick answer comes first, and below it a planner turns that answer into a buy list in store units, with the waste allowance explained, your own prices for a cost total, a diagram of what you measured, and a store sheet to print or a link to share.

How we check the math

A wrong answer is the worst mistake a calculator can make, so every formula is its own tested function. The tests put exact numbers in and expect exact results out, for normal jobs and for edge cases.

Each calculator page has a “How it works” section that shows the formula, a worked example and the coverage or bag figures the page uses, so you can check the answer yourself:

• How the Concrete Calculator works
• How the Mulch Calculator works
• How the Gravel Calculator works
• How the Paint Calculator works
• How the Tile Calculator works

What we don't do

• No structural, load, span, electrical or building-code advice. For those, check your local code and ask a professional.
• No accounts and no sign-up.
• Nothing you type leaves your browser: the calculators run on your device, and the settings and prices they remember are kept in your browser only.
• No stored prices: we don't collect or show store prices. You type your own if you want a cost total.

Contact

Write to us at [email protected]. We read every message but can't give advice on specific projects.