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Mortgage Calculator
Calculate your mortgage monthly payments, interest rates, and total costs.
✅ Free
📅 Updated 22.9.2026
Taxation 2026
About this calculator
What is the Mortgage Calculator 2026?
The mortgage calculator calculates the monthly payment, total interest cost, and repayment period for a mortgage. The calculator supports both annuity loans (fixed payment) and amortizing loans.
The calculator is free, works in the browser without registration, and provides results instantly. All figures are based on standard formulas; always check the rules that apply where you live.
Calculation Formula
Annuity Payment = P × r / (1 − (1+r)^−n). Amortizing Payment: principal/n + remaining principal × r
Enter your values in the calculator fields and press the Calculate button – the result updates immediately. You can try different values to see how changes affect the outcome.
Practical Example
Loan $200,000, interest 3.5%/year, 25 years → annuity payment approx. $1,001/month. Total interest $100,200.
This example illustrates a typical situation. Enter your own numbers into the calculator to get a personalized result.
Who is the calculator intended for?
The calculator serves employees, entrepreneurs, students, and anyone who wants a clear answer without complicated formulas. All calculators on this site are free and no registration is required.
You can always find accurate official information through relevant authorities or your employer. This calculator provides a good estimate, but official decisions are made based on the calculations of authorities.
Tips and Considerations
- Compare loans – a 0.1% margin difference on $200,000 means about $200/year in savings.
- Make extra payments on the principal as soon as you can – significantly reduces total interest.
- In certain loan programs (FHA, VA, USDA), the government insures or guarantees the loan, which can mean lower rates or smaller down payments.
Frequently Asked Questions
Enter the loan amount, interest rate (reference rate + margin), loan term, and any possible repayment holiday. The calculator will calculate the monthly payment using the annuity method and show the total amount of interest.
The margin is usually 0.5–1.5 % depending on the borrower's financial situation, collateral, and the bank's policy. Compare loans from multiple banks.
The typical loan term is 20–25 years. A longer loan term reduces the monthly payment but significantly increases the total interest cost. A shorter term saves on interest expenses.
In the US, many lenders ask for 3 to 20 % down. Some loans allow 3 to 3.5 % down (conventional and FHA) or even 0 % (VA), and putting 20 % down usually avoids private mortgage insurance (PMI).
Most US mortgages have a fixed rate for 15 or 30 years, so the payment stays the same. With an adjustable-rate mortgage (ARM) the rate follows the market, and when rates rise the monthly payment increases. The calculator shows clearly how different interest rates affect the payment.
Yes. Most banks allow one-time payments without fees or with a small commission. The calculator shows how additional payments shorten the loan term and save interest.