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Mortgage Calculator

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Calculate your monthly mortgage payment, total interest, and amortisation schedule. Switch currency — USD, INR, EUR, GBP, CAD, or AUD. Free online tool.

Reviewed by the thecalcu.com team · Last updated July 13, 2026

Home Price
$
Down Payment
%

= $80,000

Interest Rate
% p.a.
Loan Term
Property Tax Rate (annual)
% /yr
Home Insurance (annual)
$
HOA Fee (monthly)
$/mo
Other Costs (monthly)
$/mo

Monthly Payment

What is a Mortgage?

A mortgage calculator is a financial tool that computes your monthly repayment obligation when you take a home loan, along with the full breakdown of costs over the life of the loan. Unlike a simple interest calculator, a mortgage accounts for amortisation, the way each monthly payment is allocated between reducing your principal and paying interest on the outstanding balance.

When you borrow money to buy a home, the lender does not simply divide the loan into equal chunks. In the early years of a mortgage, the vast majority of each payment goes toward interest, with only a small fraction reducing the principal. As the balance shrinks over time, the interest component falls and the principal component rises, even though your monthly payment stays fixed. This is the mechanics of a self-amortising loan, and it is why the first 10 years of a 30-year mortgage barely dents the outstanding principal.

This calculator goes well beyond the basic EMI formula. It factors in property tax (typically 1–2% of the home value per year), home insurance (which most lenders require), Private Mortgage Insurance or PMI (automatically applied when your down payment is below 20%), HOA fees, and any other recurring costs. The result is your true monthly housing expense, not just the figure that appears on your loan statement.

The tool supports six currencies, USD, INR, EUR, GBP, CAD, and AUD, making it useful whether you are buying a property in Mumbai, London, Toronto, or Sydney. For Indian home buyers, selecting INR will give you results formatted in the Indian numbering system. If you want to see how your EMI breaks down month by month, check our Loan Amortization Calculator for a full principal and interest schedule.

The mortgage calculator is also the starting point for comparing loan scenarios: what happens if you put down 25% instead of 20%? What does your payment look like on a 15-year term versus 30 years? How much does a 0.5% difference in the interest rate actually cost over the life of the loan? This tool answers all of those questions in real time.

Why Use a Mortgage Calculator?

Buying a home is the largest financial commitment most people make. A mortgage calculator gives you the numbers you need to make that decision with confidence rather than guesswork.

Avoiding payment shock. Many first-time buyers focus only on the loan EMI and discover later that property tax, insurance, and HOA fees add 25–40% on top. This calculator surfaces all those costs upfront so your budget is accurate from day one.

Comparing scenarios instantly. Adjusting the interest rate slider by 0.25% or switching from a 30-year to a 20-year term shows you the monetary impact in seconds. What would take an accountant 20 minutes to model manually takes one slider movement here.

Planning your down payment. The down payment percentage directly affects your monthly payment, your LTV ratio, and whether PMI applies. Toggling between percentage and rupee/dollar amount lets you reverse-engineer how much you need to save before the purchase. Pair this with our Down Payment Calculator to build a savings plan.

Understanding the true cost of the loan. The Total Interest figure is often the number that stops people in their tracks, on a $400,000 home at 7% over 30 years, the total interest paid exceeds $400,000. Seeing this figure motivates borrowers to consider prepayments or shorter tenures.

Sharing and revisiting calculations. Every input you change is reflected in the page URL, so you can bookmark or share any specific scenario with a partner or financial adviser without re-entering values.

Who Should Use This Calculator?

First-time home buyers planning their budget before approaching a bank. Most lenders pre-qualify based on income ratios, but knowing your all-in monthly cost before that conversation helps you negotiate from a position of knowledge. Pair this with our Home Affordability Calculator to determine your price ceiling first.

Home upgrade buyers deciding whether to sell and buy larger or renovate. Comparing the mortgage on a new home against the remaining balance on the current one requires exactly the kind of side-by-side scenario modelling this calculator enables.

NRIs and expatriates buying property in India or abroad. The multi-currency support means you can model home purchases in USD, GBP, EUR, CAD, or AUD, or switch to INR for an Indian property, without leaving the tool.

Investors evaluating rental yield vs mortgage cost. If the monthly rent a property can generate is less than the total monthly payment (P&I + tax + insurance + HOA), the investment is cash-flow negative from day one. This calculator makes that comparison obvious.

Anyone considering refinancing. If market interest rates have fallen since you took your original mortgage, reducing your interest rate by even 0.5% can save lakhs of rupees or tens of thousands of dollars over the remaining term. Model the new rate here, then see how many months of savings it takes to recover closing costs.

Borrowers evaluating prepayment. Once you know your current monthly P&I, use our Loan Prepayment Calculator to quantify how much interest you save by making annual lump-sum payments.

What Insights Does the Mortgage Calculator Give You?

Monthly P&I (highlighted result) is the core mortgage EMI, the fixed amount you pay every month that covers interest on the outstanding balance and reduces the principal. This is the number your lender quotes you, and it remains the same for the entire loan term on a fixed-rate mortgage.

Total Monthly Payment adds property tax, home insurance, PMI (if applicable), HOA fees, and other costs to the P&I. This is the actual amount leaving your bank account each month and the number to use when evaluating affordability against your income.

Total Interest is the cumulative interest cost over the entire loan term. On a long-tenure loan at typical rates, total interest often equals or exceeds the original loan amount, meaning you effectively pay for the house twice. This figure is a powerful motivator for making additional principal payments or choosing a shorter term.

Total Cost adds every cost, principal, interest, property tax, insurance, PMI, and HOA, paid over the full loan term. This represents the true economic cost of the home purchase and is the right number to use when comparing renting versus buying.

Loan Amount is the home price minus your down payment, the actual sum you are borrowing. A lower loan amount reduces both your monthly payment and your total interest bill, which is why maximising the down payment where possible is financially prudent.

Payoff Date tells you the month and year your mortgage will be fully repaid. Seeing that a 30-year loan taken today will not be paid off until 2056 is a useful reality check, especially when planning retirement timelines.

PMI notice appears when your LTV exceeds 80%. This auto-calculated cost disappears from your results once you increase the down payment to 20% or above, a concrete illustration of why lenders and financial advisers push for that threshold.

How to use this Mortgage calculator

  1. Select your Currency, choose USD, INR, EUR, GBP, CAD, or AUD from the tab bar at the top. The calculator updates default values to sensible amounts for that market.

  2. Enter the Home Price, the full purchase price or appraised value of the property. Use the slider for quick adjustments or type directly in the input field. For Indian properties, values in lakhs and crores are formatted automatically.

  3. Set your Down Payment, use the % toggle to enter a percentage (e.g. 20%) or switch to the currency symbol to enter the exact amount. The helper text below the slider shows the equivalent in the other format in real time. Watch the Loan Summary for the PMI warning if your down payment falls below 20%.

  4. Enter the Interest Rate, the annual interest rate quoted by your lender. In India, home loan rates from major banks currently range from 8.5%–11% p.a. In the US, 30-year fixed mortgage rates have ranged from 6.5%–8% in recent years. Use the slider to explore rate sensitivity.

  5. Choose the Loan Term, click one of the term buttons: 10, 15, 20, 25, or 30 years. Switching from 30 years to 15 years roughly doubles the monthly P&I but more than halves the total interest paid.

  6. Expand Taxes & Additional Costs, click the accordion to enter the Property Tax Rate (annual %, typically 1–2% in the US or 0.5–1% in India), Home Insurance (annual premium), PMI Rate (0.5% is a common default if applicable), HOA Fee (if your community charges one), and any Other Costs such as maintenance reserves.

  7. Read your results, the dark result card shows your Total Monthly Payment. Below it, the Payment Breakdown donut chart segments the payment into P&I, property tax, insurance, and other costs. The Loan Summary card shows payoff date, total interest, and total cost.

  8. Review the Amortisation Schedule, scroll down to see how your balance reduces year by year (Annual view) or month by month (Monthly view). The green Principal Paid column shows equity being built; the red Interest Paid column shows the cost of borrowing.

Show formula & methodology ↓Show less ↑

Formula & Methodology

Monthly P&I formula:

M = P × r(1 + r)ⁿ / ((1 + r)ⁿ − 1)

Where:
- M = monthly principal and interest payment
- P = loan principal (home price − down payment)
- r = monthly interest rate = annual rate ÷ 12 ÷ 100
- n = total number of monthly payments = loan term in years × 12

Additional monthly costs:

- Monthly Property Tax = (Home Price × Annual Tax Rate%) ÷ 12
- Monthly Insurance = Annual Premium ÷ 12
- Monthly PMI = (Loan Amount × Annual PMI Rate%) ÷ 12 (only when LTV > 80%)
- Total Monthly Payment = M + Property Tax + Insurance + PMI + HOA + Other

Worked example (USD):

Home price: $400,000 | Down payment: 20% ($80,000) | Loan amount: $320,000
Interest rate: 7% p.a. | Loan term: 30 years

r = 7 ÷ 12 ÷ 100 = 0.005833
n = 30 × 12 = 360

M = 320,000 × 0.005833 × (1.005833)³⁶⁰ / ((1.005833)³⁶⁰ − 1)
M = 320,000 × 0.005833 × 7.6123 / 6.6123
M ≈ $2,129 per month

Adding property tax at 1.2% ($400/mo), insurance at $125/mo, no PMI (LTV = 80%):
Total Monthly Payment ≈ $2,654

Total interest over 30 years ≈ $320,000 × 360 months × 0.005833 − $320,000... more precisely:
Total Interest ≈ $446,440 | Total Cost ≈ $955,440

Worked example (INR):

Home price: ₹75,00,000 | Down payment: 20% (₹15,00,000) | Loan amount: ₹60,00,000
Interest rate: 8.5% p.a. | Loan term: 20 years

r = 8.5 ÷ 12 ÷ 100 = 0.007083
n = 20 × 12 = 240

Monthly EMI ≈ ₹52,100 | Total Interest ≈ ₹65,04,000

Assumptions:
- Interest rate is fixed for the entire loan term (variable-rate mortgages require annual recalculation).
- PMI is applied whenever the LTV exceeds 80% and removed when it drops to 80% (the calculator applies PMI for the full tenure as a conservative estimate, actual PMI removal depends on your lender's policy and may require a formal reappraisal).
- Property tax and home insurance are calculated as a percentage of the current home price, not adjusted for home price appreciation over time.
- All calculations use monthly compounding, which is standard for home loans globally.

Frequently Asked Questions

What is a mortgage calculator and how does it work?
A mortgage calculator computes your monthly repayment by applying the standard amortisation formula to your loan principal, interest rate, and loan term. Each monthly payment is split between reducing the outstanding principal and paying interest on the remaining balance. This tool goes further by adding property tax, home insurance, PMI, and HOA fees to give you a true all-in monthly cost, not just the P&I instalment.
What is the difference between Monthly P&I and Total Monthly Payment?
Monthly P&I (Principal & Interest) is the core mortgage repayment, the amount that pays down your loan and covers the lender's interest charge. Total Monthly Payment adds property tax, home insurance, PMI (if applicable), HOA fees, and any other recurring costs on top of P&I. The gap between the two is often 20–40% of the P&I figure, so budgeting only for P&I leads to a significant shortfall.
What is PMI, and when does it apply?
Private Mortgage Insurance (PMI) is a premium charged when your down payment is less than 20% of the home price, meaning your loan-to-value (LTV) ratio exceeds 80%. It protects the lender, not you, against default. PMI typically costs 0.3–1.5% of the loan amount per year and is removed once your LTV drops to 80% through repayments or home price appreciation.
What is LTV ratio, and why does it matter?
Loan-to-Value (LTV) ratio is the loan amount divided by the home's appraised value, expressed as a percentage. A lower LTV signals less risk to the lender, which typically results in better interest rates and the elimination of PMI above 80% equity. Lenders generally prefer an LTV of 80% or below, which corresponds to a 20% down payment.
What is the difference between a mortgage and a home loan in India?
The terms are often used interchangeably, but structurally they are the same product: a secured loan using the property as collateral, repaid through equated monthly instalments over a fixed tenure. In India, home loans are offered by banks and HFCs (Housing Finance Companies) at floating or fixed rates; the equivalent global term is 'mortgage'. This calculator works for both, simply select INR as your currency.
Should I choose a 15-year or 30-year mortgage term?
A 15-year term cuts total interest paid dramatically, often by more than half, and builds equity faster, but the monthly P&I is roughly 40–50% higher than a 30-year loan. A 30-year term keeps monthly payments lower, improving cash flow flexibility, but you pay far more in interest over the life of the loan. Use this mortgage calculator to compare both terms side by side before deciding.
How does a larger down payment affect my mortgage?
A larger down payment reduces your loan principal, which lowers your monthly P&I, reduces total interest paid, and improves your LTV ratio. Once your down payment reaches 20%, PMI is eliminated, saving an additional 0.3–1.5% per year on the loan amount. Every extra percentage point of down payment also typically earns you a slightly lower interest rate from most lenders.
How do I calculate my mortgage payment manually?
Use the formula M = P × [r(1+r)^n] / [(1+r)^n − 1], where P is the loan amount, r is the monthly interest rate (annual rate ÷ 12), and n is the total number of monthly payments. For example, a $320,000 loan at 7% p.a. over 30 years gives r = 0.005833 and n = 360, resulting in a monthly P&I of approximately $2,129. This calculator handles all the arithmetic instantly.
Can I reduce my monthly mortgage payment after taking the loan?
Yes, the most effective approaches are refinancing to a lower interest rate (when market rates fall), making lump-sum prepayments to reduce the outstanding principal, or extending the loan term (though this increases total interest). Use our [Loan Prepayment Calculator](/in/loan-prepayment-calculator/) to see exactly how much interest you save and how many months you shorten by making extra payments.
Is renting cheaper than buying a home?
It depends on your city, home price-to-rent ratio, time horizon, and opportunity cost of the down payment. Buying builds equity and provides stability, but the true cost includes interest, property tax, insurance, maintenance, and the capital tied up in the down payment. Our [Rent vs Buy Calculator](/rent-vs-buy-calculator/) models both paths over your expected holding period to give a data-driven answer for your specific situation.
What is the minimum down payment required for a home loan in India?
As per RBI guidelines, Indian banks can finance up to 90% of the property value for loans up to ₹30 lakh, up to 80% for loans between ₹30 lakh and ₹75 lakh, and up to 75% for loans above ₹75 lakh. This means the minimum down payment ranges from 10% to 25% depending on the loan size. Use our [Down Payment Calculator](/down-payment-calculator/) to plan how much you need to save before applying.
How much home can I afford based on my income?
A common rule of thumb is that your total monthly housing costs (P&I + tax + insurance) should not exceed 28% of your gross monthly income, and total debt payments should not exceed 36%. For example, if your household earns $8,000 per month, your target monthly payment would be around $2,240. Use our [Home Affordability Calculator](/home-affordability-calculator/) to get a personalised estimate based on your income, debts, and down payment.

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home loan calculatormortgage payment calculatorhouse loan calculatorproperty loan calculatorhome loan EMImortgage EMI calculator