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Tools that support it use your country for local currency, number formats, units and paper size. Your choice is saved only in this browser.

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Finance Calculators

Calculators for loans, investments, interest and taxes. Each one shows the formula it uses so you can check the maths. Results are estimates for planning, not financial advice.

94 tools Most tools free, no sign-up

All 94 finance tools

Grouped by what they do.

Loans & EMI

10 tools

What a loan really costs, and how to pay it off.

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Savings & interest

12 tools

How savings and deposits grow with interest.

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Investing & markets

16 tools

Returns, risk and the maths of markets.

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Retirement & insurance

8 tools

Plan income for later in life, and protect it.

Income tax & GST

13 tools

Work out tax on income, purchases and gains.

Show all 13 Show fewer Income tax & GST tools

Salary & pay

15 tools

Understand pay, from CTC to what reaches your account.

Show all 15 Show fewer Salary & pay tools

Business maths

4 tools

Pricing maths shared with the business category.

Budgets & everyday money

16 tools

Everyday money questions, from percentages to budgets.

Show all 16 Show fewer Budgets & everyday money tools

Finance tools A–Z

Collections with finance tools

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Good to know

  • 93 of 94 tools run entirely in your browser; the other one explains on its page what it sends.
  • 91 of 94 keep working without a connection once loaded.
  • Currency Converter: Downloads daily ECB reference exchange rates; the amounts you enter are never sent.
  • IFSC Code Finder & Validator: Downloads the branch list from this site in small parts as you search (one part per code you check, or the chosen bank’s branches). What you type is matched on your device and never sent.
  • Historical Exchange Rates: Sends only the currencies and dates you choose to MySmartCoPilot’s server, which fetches the rates from the European Central Bank. The amount you type stays in your browser.
  • Results are estimates for planning and learning, not financial, tax or legal advice. Check the method and assumptions on each tool’s page.

Other categories

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Quick answers and tool search

Type to search tools or to get a quick answer, for example 18% of 2500. Use the up and down arrow keys to move through the results, Enter to choose, and Escape to close.