Prepayment Calculator

See the impact of prepaying your loan

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Instant estimate · sign in to save

Fill in the fields above and select Calculate for an instant estimate.

Computed in your browser from the same formulas the full app uses — it is not saved and does not factor in every detail (taxes, exact compounding dates, fees) the way a saved scenario does. Sign in to save, share, or view history →

How is Prepayment Calculator calculated?

A prepayment reduces the outstanding principal; the calculator re-amortizes the remaining balance either at the original EMI (shorter tenure) or the original tenure (lower EMI), and reports the interest saved either way.

Enter the original loan details and how many EMIs you have already paid.
Enter the prepayment amount.
Choose whether to reduce the tenure or reduce the EMI.
The calculator re-runs the amortization from the new outstanding balance and shows the interest saved.

Frequently asked questions

What is the Prepayment Calculator?

See the impact of prepaying your loan

What do I need to enter for the Prepayment Calculator?

You will need: Original Loan Amount, Interest Rate (% p.a.), Original Tenure (months), EMIs Already Paid (months), Prepayment Amount, Outstanding Balance (overrides prepayment amount), Reduce Tenure (vs. reduce EMI).

What results does the Prepayment Calculator show?

It shows New EMI, New Tenure (months), Interest Saved, computed instantly from the values you enter.

Is the Prepayment Calculator free to use?

Yes, this calculator is free to use. Sign in to save your scenarios, view your calculation history, or share results directly in a Goonjar chat.

Ready for the full prepayment calculator with a detailed schedule, saved scenarios, and history?

Open Prepayment Calculator