Loan Amortization Calculator

Estimate fixed-rate monthly loan payments, interest, insurance, fees, extra repayments, and a full amortization schedule.

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Try a worked example

Estimate fixed-rate monthly loan payments, interest, insurance, fees, extra repayments, and a full amortization schedule.

Check the units and options, then use the tool’s calculation button. The example is fictitious; replace its values for your own calculation.

Illustration only. Supply the applicable rates and assumptions yourself; this is not financial, tax or legal advice.

Example input

Loan principal: 1200
Currency: EUR
Fixed nominal annual rate (%): 0
Term — years: 1
Term — extra months: 0
First payment month: 2026-11
Monthly insurance (outside amortization): 0
Upfront fees paid separately: 0
Monthly extra principal repayment: 0
One-time extra principal repayment: 0
Month of one-time repayment: 12

Expected output

Estimate for a fully amortizing loan at a fixed nominal rate. The final payment is adjusted to the remaining balance. Insurance and fees are excluded from interest calculations.
Regular monthly principal + interest: €100.00
Estimated first monthly outlay: €100.00
Estimated interest: €0.00
Principal repaid: €1,200.00
Estimated total paid, fees included: €1,200.00
Estimated final payment month: 2027-10
Total insurance: €0.00 · Upfront fees: €0.00 · Monthly extra applied: €0.00 · One-time extra applied: €0.00.

Yearly summary / Show all 12 monthly payments

Yearly summary
Principal repaid includes extra payments. Upfront fees are paid separately.
Year | Opening balance | Loan payments | Interest | Principal | Extra principal | Insurance | Closing balance
2026 | €1,200.00 | €200.00 | €0.00 | €200.00 | €0.00 | €0.00 | €1,000.00
2027 | €1,000.00 | €1,000.00 | €0.00 | €1,000.00 | €0.00 | €0.00 | €0.00
Show all 12 monthly payments
# | Due month | Opening balance | Principal + interest | Interest | Principal | Monthly extra | One-time extra | Insurance | Total outlay | Closing balance
1 | 2026-11 | €1,200.00 | €100.00 | €0.00 | €100.00 | €0.00 | €0.00 | €0.00 | €100.00 | €1,100.00
2 | 2026-12 | €1,100.00 | €100.00 | €0.00 | €100.00 | €0.00 | €0.00 | €0.00 | €100.00 | €1,000.00
3 | 2027-01 | €1,000.00 | €100.00 | €0.00 | €100.00 | €0.00 | €0.00 | €0.00 | €100.00 | €900.00
4 | 2027-02 | €900.00 | €100.00 | €0.00 | €100.00 | €0.00 | €0.00 | €0.00 | €100.00 | €800.00
5 | 2027-03 | €800.00 | €100.00 | €0.00 | €100.00 | €0.00 | €0.00 | €0.00 | €100.00 | €700.00
6 | 2027-04 | €700.00 | €100.00 | €0.00 | €100.00 | €0.00 | €0.00 | €0.00 | €100.00 | €600.00
7 | 2027-05 | €600.00 | €100.00 | €0.00 | €100.00 | €0.00 | €0.00 | €0.00 | €100.00 | €500.00
8 | 2027-06 | €500.00 | €100.00 | €0.00 | €100.00 | €0.00 | €0.00 | €0.00 | €100.00 | €400.00
9 | 2027-07 | €400.00 | €100.00 | €0.00 | €100.00 | €0.00 | €0.00 | €0.00 | €100.00 | €300.00
10 | 2027-08 | €300.00 | €100.00 | €0.00 | €100.00 | €0.00 | €0.00 | €0.00 | €100.00 | €200.00
11 | 2027-09 | €200.00 | €100.00 | €0.00 | €100.00 | €0.00 | €0.00 | €0.00 | €100.00 | €100.00
12 | 2027-10 | €100.00 | €100.00 | €0.00 | €100.00 | €0.00 | €0.00 | €0.00 | €100.00 | €0.00

Estimate the level monthly principal-and-interest payment for a fully amortizing loan at a fixed nominal annual rate. The schedule shows how each payment is divided between interest and principal and how the balance falls over time.

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Method and limits

Enter the amount borrowed, fixed nominal annual rate, term in years and extra months, and first payment month. Optional insurance is added to monthly cash flow but not to principal or interest; upfront fees are included only in the total cost. Add recurring or one-time extra principal to compare payoff time and interest with the same loan without extra repayments. Expand the schedule for every monthly balance and export it as CSV.

This is a simplified monthly model, not a lender quote. It excludes taxes, escrow, variable rates, daily interest accrual, and contract-specific rounding. APR/TAEG is not calculated; insurance and fees are kept outside the interest calculation.

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Quick answer

The page and its assets load from the site; this operation uses your entered values only in this browser and does not send them to a calculation endpoint.

How to use it

Limits

Frequently asked questions

What does amortization mean?

Each scheduled payment covers that month’s interest first; the remainder reduces principal. As the balance declines, the interest portion usually falls and the principal portion rises. This schedule rounds amounts to cents and adjusts the last payment to clear the balance.

Is the entered rate APR?

No. Enter a fixed nominal annual rate. This estimate does not calculate APR and does not include lender fees in the rate. Compare lender disclosures for APR and the exact costs of an offer.

How do extra repayments affect the estimate?

Extra amounts are applied to principal after the regular monthly payment. The simulator compares the resulting payoff month and interest with the same loan without extra repayments; actual lender rules, limits, and penalties can differ.

Are insurance and fees part of the loan payment?

Monthly insurance is shown separately and added to estimated monthly cash outlay, but it does not change the amortization or interest. Upfront fees are added only to estimated total paid; this tool does not finance them or calculate APR.

Sources and references

These references describe the cited context and rules; some apply only in the jurisdiction named in their title. They do not validate this illustrative calculation.