A mortgage calculator tells you exactly how much you will pay every month before you sign anything. Whether you are buying your first home in the USA, remortgaging in the UK, or financing a property in Canada β knowing your exact monthly payment in advance helps you plan with confidence.
π Mortgage Calculator
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Monthly Payment
$0
Loan Amount
$0
Total Amount Paid
$0
Total Interest
$0
Down Payment
Principal 0%Interest 0%
What Is a Mortgage Calculator?
A mortgage calculator is a free online tool that tells you your exact monthly repayment based on three inputs β the loan amount, interest rate, and loan term. It uses the same formula that every bank worldwide uses to calculate mortgage payments.
Use it before you speak to any lender β so you already know what to expect before they give you a number.
How to Calculate Mortgage Payments
Every bank uses this standard formula to calculate your monthly mortgage payment:
M = P Γ r(1+r)^n Γ· [(1+r)^n β 1]
M = Monthly Payment | P = Loan Amount | r = Monthly Rate (Annual Γ· 12 Γ· 100) | n = Total Months
Step-by-Step Example (USA)
Home price $400,000 β Down payment $80,000 β Rate 6.53% β 30 years:
Loan amount = $400,000 β $80,000 = $320,000
Monthly rate r = 6.53 Γ· 12 Γ· 100 = 0.005442
n = 30 Γ 12 = 360 months
Monthly payment = $2,024
Total paid = $729,000 | Total interest = $409,000
π‘ Tip: Use the free mortgage calculator above and select your country preset β it automatically fills in the current average interest rate for your region.
Mortgage Rates by Country (2026)
Mortgage rates vary significantly around the world. Here are the current typical rates as of June 2026:
Country
Typical Rate (2026)
Standard Term
Notes
πΊπΈ United States
6.5% β 7.0%
30 years
30-yr fixed most common; PMI required if less than 20% down
π¬π§ United Kingdom
4.5% β 5.5%
25 years
2 and 5-yr fixed deals; remortgage every few years
Total paid = Β£462,000 | Total interest = Β£192,000
Mortgage Calculator Canada β What You Need to Know
In Canada, the mortgage system has some unique rules:
Stress test: You must qualify at your contract rate + 2% (or 5.25%, whichever is higher)
CMHC insurance: Required if your down payment is less than 20%
Standard term: 25-year amortization, 5-year fixed rate most common
Current rates: 5-year fixed mortgages average around 5.1% in mid-2026
Minimum down payment: 5% for homes under $500,000 CAD
30-Year vs 15-Year Mortgage β Which Is Better?
Choosing a shorter term saves you tens of thousands in interest. Comparison on a $300,000 loan at 6.5%:
Loan Term
Monthly Payment
Total Interest
Total Paid
10 years
$3,387
$106,000
$406,000
15 years
$2,613
$170,000
$470,000
20 years
$2,238
$237,000
$537,000
25 years
$2,026
$308,000
$608,000
30 years
$1,896
$382,000
$682,000
Key takeaway: Choosing a 15-year mortgage over a 30-year on a $300,000 loan saves you $212,000 in interest β but your monthly payment is $717 higher.
The 28% Rule β How Much Mortgage Can You Afford?
The standard rule used by lenders worldwide:
Maximum Monthly Payment = Gross Monthly Income Γ 28%
Monthly Income
Max Payment (28%)
Approx. Loan (30yr @ 6.5%)
$3,000
$840
~$133,000
$5,000
$1,400
~$221,000
$8,000
$2,240
~$354,000
$12,000
$3,360
~$531,000
$20,000
$5,600
~$885,000
7 Ways to Get a Lower Mortgage Rate
Improve your credit score β even 20 extra points can save 0.5% on your rate.
Save a larger down payment β 20% eliminates PMI and usually gets a better rate.
Compare multiple lenders β rates can vary by 0.5%β1.0% between lenders.
Choose a shorter term β 15-year rates are typically 0.5%β0.75% lower than 30-year.
Buy points β pay upfront to permanently lower your interest rate.
Lock your rate β when you find a good rate, lock it before it rises.
Use a mortgage broker β they have access to multiple lenders and can negotiate on your behalf.
π² Try Our Full Loan Calculator
Calculate any loan β personal, car, or home β with your exact figures. Instant payment breakdown included.
Use the formula M = P Γ r(1+r)^n Γ· [(1+r)^n β 1], where P is your loan amount, r is your monthly rate, and n is total months. Or use the free mortgage calculator above β enter your home price, down payment, rate, and term for an instant result.
What is a good mortgage interest rate in 2026?
In the USA, the 30-year fixed average is around 6.5% in mid-2026. In the UK, 2-year fixed deals average 4.8%. In Canada, 5-year fixed rates are around 5.1%. Anything below your country's average for your credit score tier is considered a good rate.
How much mortgage can I afford?
The 28% rule says your monthly mortgage payment should not exceed 28% of your gross monthly income. If you earn $6,000 per month, your maximum monthly payment should be around $1,680.
Do I need a 20% down payment?
No β in the USA you can get a mortgage with as little as 3% down, and in the UK with 5% deposit. However, a 20% down payment gets you the best rates and avoids mortgage insurance fees in every country.
Is a 30-year or 15-year mortgage better?
A 15-year mortgage has higher monthly payments but you pay far less total interest β often half as much. A 30-year mortgage gives lower monthly payments and more cash flow flexibility. Use the calculator above to compare both options for your loan amount.
Can I use this calculator for UK pounds or Canadian dollars?
Yes β the calculation is the same regardless of currency. Enter your home price in your local currency (GBP, CAD, AUD, EUR) and use the country preset button to load the current average rate for your region.
What is the difference between fixed and variable rate mortgage?
A fixed rate locks in your interest rate for the full term so your payment never changes. A variable rate moves with the market β it may start lower but can increase if central banks raise rates. Fixed gives certainty; variable offers potential savings.