About LetsCalculator

Accurate, free online calculators for real-world projects.

Our Mission

LetsCalculator was built to solve a common frustration: needing a quick, accurate calculation for a real-world project — whether you're buying mulch for your garden, estimating concrete for a patio, or scaling a recipe for dinner guests. We believe everyone should have access to professional-grade calculators without needing a contractor's license or engineering degree.

What We Offer

We provide 50+ free online calculators across four categories:

Our Values

Accuracy First

Formulas verified against industry standards and manufacturer specs.

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Privacy

All calculations run in your browser. No data is sent to servers.

Instant & Free

No sign-ups, no downloads. Just enter numbers and get answers.

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Mobile Ready

Works perfectly on phones, tablets, and desktops.

Meet the Team

JR

Jordan Rivera

Founder & Calculator Engineer

Jordan brings years of experience in construction project management and web development. After spending too many hours doing manual material calculations on job sites, Jordan built LetsCalculator to make these everyday calculations fast, accurate, and accessible to everyone — from weekend DIYers to professional contractors.

Accuracy & Methodology

Every calculator on LetsCalculator uses industry-standard formulas and is cross-referenced against manufacturer guidelines, building codes, and expert sources. Our construction calculators account for standard waste factors (typically 10-15% depending on material type), and all unit conversions follow NIST standards.

Disclaimer: While we strive for accuracy, our calculators provide estimates for planning purposes. Always verify quantities with your material supplier or contractor for critical projects. Building codes and requirements vary by location.

Contact

Found an error in a calculation? Have a suggestion for a new calculator? Reach out at [email protected]. We take accuracy seriously and will investigate any reported issues within 24 hours.