🏠 Mortgage Calculator
Calculate your monthly mortgage payment, total interest cost, and view a full amortization schedule. Includes property tax, insurance, and extra payment options.
| Year | Principal Paid | Interest Paid | Total Paid | Remaining Balance |
|---|
How Does a Mortgage Calculator Work?
A mortgage calculator estimates your monthly home loan payment based on the loan amount, interest rate, and repayment term. It uses the standard amortization formula to break down each payment into principal and interest components over the life of the loan.
M = P × [r(1+r)^n] ÷ [(1+r)^n − 1]Where:
P = Principal loan amount (Home Price − Down Payment)r = Monthly interest rate (Annual Rate ÷ 12 ÷ 100)n = Total number of payments (Years × 12)
For example, on a $280,000 loan at 6.75% annual interest over 30 years:
- Monthly Rate (r): 6.75 ÷ 12 ÷ 100 = 0.005625
- Total Payments (n): 30 × 12 = 360
- Monthly Payment: $280,000 × [0.005625(1.005625)^360] ÷ [(1.005625)^360 − 1] ≈ $1,816.08
Understanding Your Mortgage Payment Components
Your total monthly mortgage payment typically includes four components, often referred to as PITI:
- Principal (P): The portion that reduces your outstanding loan balance. In the early years, this is a small fraction of each payment.
- Interest (I): The cost of borrowing money, calculated on the remaining balance. This is the largest component in the first decade of a 30-year mortgage.
- Taxes (T): Property taxes collected by your lender and held in an escrow account, then paid to your local government annually.
- Insurance (I): Homeowner's insurance premiums and, if applicable, Private Mortgage Insurance (PMI) for down payments below 20%.
How Extra Payments Can Save You Thousands
Making even small additional payments toward your principal each month can dramatically reduce the total interest you pay and shorten your loan term significantly.
| Extra Monthly Payment | Interest Saved | Years Shaved Off | New Payoff Time |
|---|---|---|---|
| $0 (Baseline) | $0 | — | 30 years |
| +$100/month | ~$48,000 | ~4 years | ~26 years |
| +$200/month | ~$82,000 | ~7 years | ~23 years |
| +$500/month | ~$145,000 | ~12 years | ~18 years |
Current Average Mortgage Rates by Country (2024)
- 🇺🇸 United States: 30-year fixed rates average around 6.5% – 7.25%. FHA loans may offer slightly lower rates with a 3.5% down payment.
- 🇬🇧 United Kingdom: 5-year fixed rates average around 4.5% – 5.5%. Most UK mortgages have 2-5 year fixed terms before reverting to the lender's Standard Variable Rate (SVR).
- 🇨🇦 Canada: 5-year fixed rates average around 4.8% – 5.5%. Canadian mortgages are typically amortized over 25 years with 5-year terms.
- 🇦🇺 Australia: Variable rates average around 6.0% – 6.5%. Most Australian home loans are variable rate with offset accounts.
Frequently Asked Questions
A common guideline is the 28/36 rule: your monthly housing costs should not exceed 28% of your gross monthly income ($2,333/month on $100K), and total debt payments should stay below 36%. At current rates around 7%, this typically translates to a home price of approximately $350,000 – $420,000 with a 20% down payment.
A 15-year mortgage has higher monthly payments but significantly lower total interest costs and typically a lower interest rate (0.5%–1% less). A 30-year mortgage offers lower monthly payments and more financial flexibility. If you can comfortably afford the higher payments, the 15-year option can save you over $150,000 in interest on a $300K loan.
Private Mortgage Insurance (PMI) is required by lenders when your down payment is less than 20% of the home's purchase price. It typically costs 0.5%–1.5% of the loan amount annually. You can avoid PMI by making a 20% down payment, using a piggyback loan (80/10/10 structure), or requesting PMI removal once your equity reaches 20% through appreciation or principal payments.
The ideal down payment is 20% to avoid PMI and secure the best interest rates. However, many first-time buyer programs (FHA, VA, USDA) allow down payments as low as 3%–3.5%. The national average first-time buyer down payment in the US is approximately 6%–7%.
No. Closing costs typically range from 2% to 5% of the home purchase price and include appraisal fees, title insurance, attorney fees, and lender origination charges. On a $350,000 home, expect closing costs of approximately $7,000–$17,500 paid at settlement.