About CalculatorGo

CalculatorGo provides free, fast and accurate online calculators for everyday use. Our tools are designed to help people perform common calculations — from age and attendance to pregnancy tracking and financial analysis — quickly and reliably.

Our Mission

We believe useful tools should be free, simple and accessible. CalculatorGo is built to deliver instant, accurate results without requiring sign-ups, downloads or personal information.

How We Build Calculators

Every calculator on CalculatorGo is built with documented formulas and transparent methodology. Health-related calculators use peer-reviewed formulas (such as the Mifflin-St Jeor equation for BMR and Naegele's Rule for EDD) and include clear disclaimers about their limitations.

Privacy First

All calculations run directly in your browser. We don't store your personal data, health information or calculation results on our servers. See our Privacy Policy for details.

Contact Us

Have questions, suggestions or feedback? Visit our Contact page.