About CalcNow

Free calculators for Canadians and beyond.

Our Mission

CalcNow provides free, fast, and accurate online calculators for everyday life. Whether you need to calculate a mortgage payment, check your BMI, figure out a tip, or convert units, our tools are designed to give you instant answers without the hassle of signups, downloads, or complicated interfaces.

What We Offer

We offer 24 calculators across four categories: Math (percentage, fractions, area, unit conversion, GPA, final grades), Finance (mortgage, loan, compound interest, salary, tip, discount, Canadian sales tax), Health and Fitness (BMI, calories, BMR, body fat, ideal weight, pace, pregnancy due date, ovulation), and Other (age, time, password generator). Each calculator is built with accuracy in mind, using established mathematical formulas and scientific equations. We also publish practical guides on the CalcNow Blog — the math behind everyday decisions, from mortgages to exam season.

Our Approach

Every calculator on CalcNow is designed with three principles in mind. First, accuracy — we use standard, peer-reviewed formulas and clearly display the equations used so you can verify our work. Second, speed — our calculators run entirely in your browser with no server calls, meaning instant results every time. Third, simplicity — clean interfaces that get you to your answer without clutter or confusion.

Privacy First

All calculations happen locally in your browser. We never collect, store, or transmit the data you enter into our calculators. Your numbers stay on your device. Read our full Privacy Policy for details.

Accuracy Disclaimer

While we strive for accuracy in all our calculators, the results provided are for informational and educational purposes only. They should not be used as a substitute for professional financial, medical, or legal advice. Always consult qualified professionals for important decisions about your health, finances, or other personal matters.

Contact

Have a suggestion for a new calculator? Found a bug? We'd love to hear from you. Reach out at hello@calcnow.ca.