About Us

Making calculations simple and fair for everyone

XG

Xiang Guang

Expert Verified

Personal Finance Consultant & FinTech Specialist

5+ Years US Market Experience Certified Financial Planner IRS Standards Verified

I specialize in US gratuity culture, consumer law, and personal finance education. All calculators on this site are verified against current IRS regulations and industry standards from the Emily Post Institute and National Alliance for Taxi Unity (NATU).

Our Mission

At US Calculator Tools, we believe that tipping and discount calculations should be simple, stress-free experiences. Our goal is to eliminate the awkward math and uncertainty that often comes with calculating tips, splitting bills, and understanding discounts.

We created these free, easy-to-use tools to help people tip confidently and fairly, ensuring that service workers receive the recognition they deserve for their hard work.

Why We Built This

We noticed that many people struggle with:

  • Mental math - Calculating percentages on the spot
  • Splitting bills - Dividing the total fairly among groups
  • Tipping etiquette - Knowing the right amount to tip
  • Fairness - Ensuring service workers are properly compensated

Our Values

Simplicity

We design our tools to be intuitive and easy to use, with no unnecessary complexity.

Transparency

We believe in clear, upfront calculations with no hidden fees or costs.

Fairness

We promote fair tipping practices that support service industry workers.

Accessibility

Our tools are free to use for everyone, anywhere, on any device.

Contact Us

We're always looking to improve our tools and welcome your feedback, suggestions, or questions.

Why Trust Our Calculators?

Expert Verified

All content reviewed by finance professionals

IRS Compliant

Following 2026 tax regulations

Works Offline

PWA support for offline calculations

No Data Collection

Your data stays on your device

Our Sources

Tipping Guidelines

  • Emily Post Institute
  • National Alliance for Taxi Unity (NATU)
  • US Bureau of Labor Statistics

Tax Information

  • Internal Revenue Service (IRS)
  • State Tax Authorities
  • European Commission VAT Database