Free Financial Calculators

Yes, every calculator in this library is completely free with no sign-up, account, or subscription required. You can use them as many times as you like, including features that paid platforms lock behind brokerage accounts.

A SIP (Systematic Investment Plan) calculator projects the future value of regular monthly investments at a given return rate. Enter your monthly amount, expected return, and investment period to see total invested, returns earned, and the final corpus.

Compound interest means earning returns on your returns — interest is added to the principal each period, and the next period's interest is calculated on the larger total. Over long periods this creates exponential growth. The compound interest calculator shows exactly how this builds year by year.

Diversified equity mutual funds have historically returned 12–15% annually over 10-year periods in India, and 8–12% for developed global indices. Use the SIP calculator to test multiple rates — comparing 8%, 10%, and 12% shows how sensitive your corpus is to return assumptions.

Use the SIP Goal Calculator: enter your target amount, investment period, and expected return rate, and it solves for the exact monthly SIP you need. To reach 10,000,000 in 20 years at 12% annually, you would need to invest roughly 10,009 per month.

The SIP calculator projects returns on a fixed amount invested every month, while the lumpsum calculator shows the future value of a single one-time investment. The SIP vs. lumpsum comparison tool runs both simultaneously so you can see which strategy wins for your specific inputs.

Yes. Calcrux covers the same SIP maturity, lumpsum, compound interest, and goal-based planning that Groww and Zerodha include in their platforms — completely free, no brokerage account or signup required. Works globally in any currency, not just Indian rupees.

Very accurate — formulas are cross-checked against fund house and bank outputs and covered by automated tests. Results are projections based on a constant return rate; actual mutual fund returns vary. These are planning estimates, not guaranteed figures.

Yes. The tools detect your region automatically and show results in your local currency. You can switch country and currency at any time. The SIP and lumpsum tools work for global investors, not just India — the math applies to any systematic investment plan worldwide.

Browse the subcategories on this page — Personal Finance, Business Finance Planning, and Risk & Planning — or use the search to filter by name. Each tool page also links to related calculators, so you can move from SIP to goal planning to compound interest in a few clicks.