About CalcAdda

CalcAdda (calcadda.in) is a free online calculator hub built specifically for Indian users. Whether you're planning a home loan, filing your taxes, tracking investments, or converting units — CalcAdda has a tool for it.

Our mission

To make financial and everyday calculations simple, accurate, and accessible to every Indian — student, salaried employee, business owner, or investor. No popups, no paywalls, no mandatory signup required. Everything is free.

Tools available

• EMI Calculator — home, car and personal loans with affiliate bank links
• Income Tax Calculator — Old vs New regime FY 2025-26 with Excel export
• PF / EPF Calculator — EPF corpus, EPS pension, VPF returns
• GST Calculator — all 4 slabs, CGST/SGST/IGST breakdown
• SIP Calculator — mutual fund returns with top fund recommendations & links
• Loan Eligibility Calculator — max loan based on salary and FOIR
• Unit Converter — length, weight, temperature, area, speed
• Currency Converter — live exchange rates, 24 currencies
• CGPA Calculator — weighted GPA and CBSE % conversion
• Age Calculator — exact age with birthday countdown
• Percentage Calculator — 4 calculation types
• Date Calculator — difference, add days, day-of-week finder

Data accuracy

All financial calculators use standard RBI/EPFO/CBDT formulas. Income tax is updated for FY 2025-26 (Budget 2025). EPF uses the EPFO-declared rate of 8.25% for FY 2024-25. Currency rates are fetched live. For major financial decisions, always consult a SEBI-registered advisor or chartered accountant.

Technology

CalcAdda is built with pure HTML, CSS and JavaScript — no frameworks, no tracking scripts, no personal data collection. Fast, lightweight, works offline after first load. Calculations run entirely in your browser.

Contact

Have a suggestion, bug report, or new calculator idea? Contact us →