About Pocket Calculator

Our Mission

Pocket Calculator was founded with a single, clear mission: to make complex calculations simple, accessible, and completely free for everyone. Whether you're a student trying to understand a math concept, a professional running financial projections, or a parent tracking their family's health, you deserve fast, accurate tools that just work — without paywalls, sign-ups, or distractions.

We believe that basic financial literacy and health awareness are fundamental rights, not premium services. That's why every single tool on Pocket Calculator is, and always will be, 100% free to use.

Who We Are

Pocket Calculator is owned, built, and maintained by Hemant Parashar, a B.Sc. graduate and independent software developer based in India. What started as a personal side-project to build a handful of useful calculation tools has grown into a platform with over 50 tools, serving thousands of users every day from across India and the world.

Every calculator on this platform has been personally researched, coded, and tested by Hemant to ensure the formulas and results meet professional standards. When a user reports a bug or an error, it is personally reviewed and fixed — often within 24 hours.

What We Offer

Our tool library is organized into four main categories, designed to cover the full spectrum of everyday calculation needs:

• Financial Tools (28+): From SIP calculators and Loan EMI calculators to GST, FD, PPF, income tax, and more — we cover the full scope of personal and business finance.
• Health & Fitness Tools (16+): Calculate your BMI, BMR, daily calorie needs, ideal body weight, sleep cycles, pregnancy due dates, and more.
• Math Tools (18+): Scientific calculator, percentage, fractions, standard deviation, quadratic equation solver, prime factorization, and many more mathematical utilities.
• Daily Life & Other Tools (14+): Age calculator, date difference, time calculator, unit converter, password generator, GPA calculator, and more.

Our Commitment to Accuracy

Every calculator on this platform is built using verified, industry-standard mathematical formulas. Financial calculators use standard banking formulas (e.g., reducing balance compounding for EMI, annuity-due for SIP). Health calculators reference WHO guidelines and peer-reviewed medical literature. We cross-reference our results with authoritative sources and update our tools whenever formulas or regulations change.

That said, our tools provide estimates for educational purposes. For consequential financial or medical decisions, we always recommend consulting a qualified professional.

Our Commitment to Privacy

Unlike many online tools that log, store, or sell your data, Pocket Calculator is built on a simple principle: what you type stays in your browser. All calculations are performed entirely on the client-side (in your browser's JavaScript engine). We do not have a backend server that receives or stores your input data. Please read our Privacy Policy for complete details.

Why "Pocket Calculator"?

The name reflects our goal: a calculator you always have with you, in your pocket. Simple, immediate, and always ready to help — just like the classic pocket calculator, but for the 50+ complex calculations of modern life.

Get in Touch

We are always looking to improve. If you have a suggestion for a new calculator, found an error, or just want to share how a tool has helped you, we'd love to hear from you. Visit our Contact Page or email us directly at contact@pocketcalculator.in.