How to Use the Loan Calculator
A short path from loan terms to a payment and schedule.
- Choose reducing balance (standard EMI) or flat rate, then enter the loan amount and a display currency.
- Enter the annual interest rate and term in years and months (payments are monthly only).
- Optionally set a first payment date and an extra monthly amount to see months and interest saved.
- Read the monthly payment, summary totals, chart, and yearly amortization table. Expand a year for monthly rows.
How Your Monthly Payment Is Calculated
The reducing-balance EMI formula with a fixed worked example.
With monthly rate r = annual rate ÷ 12 ÷ 100 and n months, the payment is P × r × (1 + r)^n ÷ ((1 + r)^n − 1). If the rate is zero, the payment is simply P ÷ n. That is the same EMI calculation formula used for many personal loan and car loan payment estimates when the rate is fixed and installments are monthly.
Example: 100,000 at 6% for 30 years (360 months) has r = 0.005 and a monthly payment of about 599.55. Early payments are mostly interest; later payments are mostly principal. This loan payment calculator assumes a fixed rate and equal monthly installments — not a variable rate or irregular payment plan.
What Is an Amortization Schedule?
A payment-by-payment map of principal, interest, and balance.
An amortization schedule shows how each installment is split and how the balance falls over time. A loan amortization schedule is useful when you want to see the payoff path, not only the monthly payment. The yearly view summarizes principal and interest per year; expanding a year shows each month. The same structure applies to a personal loan calculator, car loan calculator, or auto loan calculator scenario — the math is the same for any fixed-rate installment loan.
Reducing Balance vs. Flat Rate
Two ways lenders may quote interest — they are not the same.
Reducing balance (standard EMI) recalculates interest on the remaining principal each month. Flat rate multiplies the original amount by the annual rate and the term in years, then divides principal plus that interest into equal payments. Flat-rate quotes can look lower than a comparable reducing rate because interest is charged on the full original amount; the estimated equivalent reducing-balance rate is usually higher.
How Extra Payments Can Reduce Interest
Paying additional principal can shorten the term.
Extra monthly amounts applied to principal can cut the number of payments and the total interest compared with the baseline schedule. An extra payment calculator view (or pay off loan early calculator scenario) compares months saved and interest saved against the same loan with no extras. Some lenders charge prepayment fees or limit how extras are applied — check the loan terms before relying on an early-payoff plan.
What This Calculator Does Not Include
Honest limits of a payment estimate.
Fees, taxes, insurance, variable rates, and lender-specific rounding are not included. A lender’s figures may differ slightly. For a mortgage, property tax and insurance are often added to the monthly amount you send the servicer.
Frequently Asked Questions
EMI formulas, amortization, flat vs reducing rates, and extras.
How do I calculate my monthly loan payment?
For a fixed-rate reducing-balance loan, the monthly payment depends on the loan amount, the annual interest rate, and the number of months. This loan calculator uses the standard EMI formula and shows the payment live as you change the inputs.
How is EMI calculated?
EMI (equated monthly installment) on a reducing-balance loan equals P × r × (1 + r)^n ÷ ((1 + r)^n − 1), where P is the principal, r is the monthly rate, and n is the number of months. If the rate is zero, EMI is simply the principal divided by n.
What is an amortization schedule?
An amortization schedule lists each payment and splits it into principal and interest, with the remaining balance after that payment. Early payments are usually mostly interest; later payments are mostly principal.
What is the difference between a flat rate and a reducing balance rate?
A reducing-balance rate charges interest on the remaining principal each month. A flat rate charges interest on the original amount for the whole term, then divides principal plus that interest into equal payments. Flat-rate quotes can look lower than they are; the equivalent reducing-balance rate is often higher.
How do extra payments affect my loan?
Extra amounts applied to principal can shorten the schedule and reduce total interest. Some lenders charge prepayment fees, so check your loan terms before paying ahead.
Is the interest rate here the same as APR?
No. This calculator uses the stated annual interest rate with monthly compounding. APR can include fees and other costs, so a lender’s APR may be higher than the interest rate alone.
Why is most of my early payment interest?
At the start of an amortizing loan the balance is highest, so the interest portion of each payment is largest. As the balance falls, more of each payment goes to principal.
Will my lender's numbers match this calculator?
They may differ slightly because of rounding, fees, payment timing, and day-count conventions. Treat these figures as estimates and confirm the schedule with your lender.
Sources
Amortization in plain language: CFPB — What is amortization?. Interest rate vs APR: CFPB — Interest rate and APR.
This calculator provides general information and estimates only. It is not financial advice or a loan offer. Check the terms with your lender or a qualified financial adviser.
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