Master Calc (mastercalc.in) is a free online calculator platform built for Indian users — salaried employees, small business owners, shopkeepers, freelancers, students and families who need quick, accurate numbers before visiting a bank, mutual fund distributor or chartered accountant. We offer 85+ free calculators across eight clear categories: loans & EMI, savings & deposits, mutual funds & retirement, stocks & trading, tax & GST, property, health and everyday math tools.

Every tool runs instantly in your browser on mobile or desktop. No signup, no app install and we do not store the amounts you enter. Change loan tenure, GST rate or SIP amount as many times as you want and compare scenarios side by side before you commit real money.

Popular calculators on Master Calc

Our most-used tools help with everyday financial decisions in India. Plan your home loan EMI and compare banks with the loan comparison calculator. Add or remove tax with the GST calculator and create PDF bills using our free GST invoice generator. Estimate FD maturity, SIP returns and PPF corpus for short- and long-term goals.

For salaried taxpayers, compare old vs new income tax regime, check HRA exemption and convert CTC to in-hand salary. Property buyers use stamp duty, rent vs buy and home loan eligibility calculators. Investors track CAGR, XIRR and capital gains tax on shares and mutual funds.

Who is Master Calc for?

Home loan borrowers — estimate EMI, prepayment savings and affordability before bank visits.
Small businesses & freelancers — GST on quotes, reverse GST on invoices and professional PDF billing.
Mutual fund investors — SIP, lumpsum, step-up SIP, SWP and retirement corpus projections.
Salaried employees — income tax, HRA, gratuity and salary structure planning each financial year.
Students & daily users — percentage, BMI, age, unit converter, date difference and standard calculators.

Finance blog and learning guides

Beyond one-click calculators, Master Calc publishes detailed guides on our finance blog — how to calculate home loan EMI, GST (CGST, SGST, IGST), SIP goals, FD interest, PPF rules, old vs new tax regime, gratuity, capital gains and more. Each article links back to the matching free tool so you can read the concept and verify numbers in seconds.

Why choose Master Calc?

Made for India — rupees, Indian tax slabs, GST rates, stamp duty and common bank products.
Always free — no paywall, no login required for calculators.
Mobile friendly — works on phone browsers while you are at a branch or client site.
Privacy first — calculations happen on your device; we do not save your financial inputs.
Growing library — new calculators and blog posts added regularly based on user needs.

Disclaimer: All calculators on Master Calc are for education and planning only. They are not financial, tax or legal advice. Interest rates, tax rules and mutual fund returns change — verify important figures with your bank, AMC or chartered accountant before signing documents or filing returns.