Loan Interest Rate Calculator

Calculate in seconds with our free loan interest rate calculator: simple inputs, instant results, charts and a shareable link.

Finance & Loans Instant Private
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Formula

Solves EMI = P·r(1+r)^n/((1+r)^n−1) for r (bisection)

How to use the Loan Interest Rate Calculator

  1. Enter your values. Fill in Loan Amount, Monthly EMI and Tenure. Example values are pre-filled so you can see how it works.
  2. Get instant results. Results update automatically as you type — no need to press anything (or click Calculate).
  3. Review the breakdown. Check the detailed results, charts and tables below the main answer.
  4. Save or share. Copy the result, print it, or use “Share link” to send the exact calculation to someone.

About this tool

EMI, loan, mortgage, investment, SIP, interest, savings and personal finance calculators.

Read the complete Loan Interest Rate Calculator guide

Frequently asked questions

Is the Loan Interest Rate Calculator free to use?

Yes. The Loan Interest Rate Calculator on Gemma-4 is 100% free with no sign-up, no limits and no watermark. An optional free account lets you save favourites.

Is my data private?

Yes. Your inputs are processed instantly and are not stored on our servers.

Does it work on mobile phones?

Absolutely. The Loan Interest Rate Calculator is fully responsive and works on Android, iPhone, tablets and desktop browsers such as Chrome, Edge, Safari and Firefox.

What formula does the Loan Interest Rate Calculator use?

It uses: Solves EMI = P·r(1+r)^n/((1+r)^n−1) for r (bisection). All calculations run with full precision and are rounded only for display.

How accurate is the Loan Interest Rate Calculator?

The calculator uses standard, well-established formulas and exact arithmetic. Results are as accurate as the values you enter; for financial, medical or legal decisions, confirm with a qualified professional.

Who is the Loan Interest Rate Calculator useful for?

It is popular with salaried employees planning EMIs and savings, first-time home buyers comparing loans, investors tracking SIP and FD returns — anyone who needs quick, reliable help with money decisions.