Compound Interest Calculator

General compound interest

₹1,00,000
8%
%
10 years
yrs
Final Amount
2,15,892
+₹1,15,892 interest earned
Principal₹1,00,000
Interest₹1,15,892
Total2,15,892
What this means for you
Compound interest doubles your money in roughly 72/rate years (rule of 72). 7% takes ~10y, 12% takes ~6y to double.
What to do next
Set up a monthly SIP instead
Defaults to annual compounding.
Standard compound interest formula
Want this reviewed by a real advisor? AI + ADVISOR
Our AI drafts a personalized plan from your numbers; a SEBI-registered advisor reviews and replies within 24 hours. Free, no signup.
Formula & SourceCompound Interest Calculator
A = P × (1 + R/100/n)^(n×Y)
Source: Standard compound interest formula

Frequently Asked Questions

All formulas are verified against the original government notification or Act (cited in the source line below the result). Numbers update in under a second on any input change, with no rounding-of-thousands like some competitors. For tax, slabs are sourced from the current Finance Act; for small savings, rates come from the quarterly government notification.
Yes — click "Save" below the result. Scenarios are stored in your browser (no signup, no server), and you can view all saved scenarios at /scenarios. To share, click "Share" and your inputs encode into the URL so the recipient lands on the same view.
Yes — click "PDF" below the result. It uses your browser's print-to-PDF, formatted with a clean stylesheet that hides navigation and shows only the calculation, breakdown, and chart. Works offline.
No. Every calculator runs entirely in your browser — your inputs never reach our servers. Scenarios you save are kept in localStorage on your device. We collect anonymous visit counts only for the live counter shown in the footer.
Yes — every calculator is verified for FY 2026-27 (post Finance Act 2025). The "Last reviewed" stamp at the bottom of every page tells you when the math was last re-checked. If you spot an out-of-date number, write to us at /contact.