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Tools
Bank and broker calculators are marketing surfaces first and arithmetic second. These are the arithmetic, with the assumptions written down.
Saving and investing#
- FD Calculator — maturity value of a fixed deposit, with the interest split out from your principal. Handles quarterly, monthly, half-yearly and annual compounding, plus simple-interest deposits.
- SIP Calculator — what a monthly systematic investment plan grows to, and how much of the final figure you contributed rather than earned.
- Mutual Fund Calculator — the same projection for a one-time lumpsum or a monthly SIP, side by side on the same return assumption.
Borrowing#
- EMI Calculator — monthly instalment on a home, car or personal loan, and the total interest the tenure costs you.
Tax#
- Income Tax Calculator — old regime against new for FY 2026-27, including the standard deduction, the section 87A rebate and the marginal relief band above ₹12 lakh.
- GST Calculator — add GST to a price or extract it from a GST-inclusive total, at the rates in force since September 2025.
Every calculator runs in your browser. Nothing you type is sent anywhere. If there is one you keep doing by hand, tell us.