About My Project Calc

My Project Calc is a free collection of calculators for home improvement, DIY materials, landscaping, and contractor estimates. Our goal is simple: help you estimate materials, quantities, coverage, waste, and project costs before you buy.

Generic calculators give you a single number. We go deeper with material-specific assumptions, multiple shapes, unit conversions, waste factors, bag/yard/ton estimates, transparent formulas, and printable results — so the answer actually matches your real-world project.

What we believe

• The calculator is the product — the page is just the wrapper.
• Every formula should be visible and easy to check.
• Estimates should account for waste, not just perfect geometry.
• Tools should work in feet, inches, yards, meters, bags, and tons.

Every result is an estimate. Always round up and buy a little extra to account for waste, spills, and breakage, and confirm critical structural quantities with a professional.