Loan & EMI Calculator

Calculate monthly payment, total interest, principal/interest split, and full amortization schedule. See how extra payments save you money.

Advanced — No extra payment · Show schedule

How Loan Repayment Works

Each monthly payment = EMI = P × [r(1+r)^n] / [(1+r)^n − 1]. In early months, most of the payment goes toward interest. Over time, more goes to principal. The amortization schedule shows every month in detail.

Use the loan type presets to quickly fill typical values for mortgage, auto, personal, or student loans. The extra payment field shows how much interest you save and how many months you shave off by paying more each month.

How to Use

  1. Click a loan type preset or enter your own values.
  2. Enter loan amount, interest rate, and term.
  3. Click Calculate to see monthly payment, total interest, and the principal/interest split.
  4. Open Advanced to add an extra monthly payment and see how much it saves.

Tips & Best Practices

Use Ctrl+Enter to calculate without clicking. Use Ctrl+Shift+C to copy. Press Esc to clear. Try different loan type presets to compare monthly payments across loan types. The principal/interest split bar shows how much of your total payment goes to the lender vs your equity. Even $100/month extra on a 30-year mortgage can save tens of thousands in interest — use the Advanced panel to see the exact savings. The amortization schedule shows how early payments are interest-heavy while later payments go mostly to principal.

When to Use This Tool

Use for mortgage planning, auto loan comparison, personal loan budgeting, or student loan repayment. Pair with the Compound Interest Calculator to compare the cost of debt vs the return on savings, or the Salary Calculator to check affordability.

Frequently Asked Questions

How is the monthly loan payment calculated?

EMI = P × [r(1+r)^n] / [(1+r)^n − 1], where P is principal, r is monthly rate (annual / 12 / 100), and n is number of months.

What is an amortization schedule?

It shows each monthly payment split into principal and interest portions, plus the remaining loan balance after each payment.

How does an extra monthly payment help?

It reduces the principal faster, cutting the total interest you pay and shortening the loan term. Even $100/month extra on a 30-year mortgage can save tens of thousands.

Is my data sent to a server?

No. All calculations run in your browser. Your loan details are never uploaded or stored.