Mortgage Payment Calculator
Mortgage Calculator
A mortgage calculator helps you estimate monthly payments and total cost of a home loan. Understanding these numbers is essential before buying a home.
Conversion Formula
Uses the standard amortization formula where P is the loan amount (home price minus down payment), r is the monthly rate, and n is total monthly payments.
Step-by-Step Examples
$350,000 home, $70,000 down, 6.5%, 30yr = $1,770.27/month
Loan: $280,000; Total interest: $357,297
$250,000 home, $50,000 down, 7%, 15yr = $1,798.65/month
Loan: $200,000; Total interest: $123,757
History
The modern mortgage originated in 1930s America when the Federal Housing Administration created long-term, fixed-rate mortgages to stabilize the housing market.
Common Use Cases
- Home buying decisions
- Refinancing analysis
- Comparing loan offers
- Budget planning for homeownership
Frequently Asked Questions
How much house can I afford?
A common guideline is the 28/36 rule: spend no more than 28% of gross income on housing and 36% on total debt.
What is the difference between 15 and 30 year mortgages?
A 15-year mortgage has higher monthly payments but lower total interest. A 30-year mortgage is more affordable monthly but costs significantly more in interest.
Should I put 20% down?
20% down avoids PMI (private mortgage insurance) and gets you better rates. But FHA loans allow as little as 3.5% down.
What is included in a mortgage payment?
PITI: Principal, Interest, property Taxes, and homeowner's Insurance. This calculator shows P&I; add taxes and insurance separately.
How does interest rate affect my payment?
Each 1% increase in rate on a $300,000 loan adds roughly $180/month to the payment.
What is PMI?
Private Mortgage Insurance is required when your down payment is less than 20%. It typically costs 0.5-1% of the loan amount annually.
Can I pay off my mortgage early?
Most mortgages allow extra payments without penalty. Even $100 extra per month can shave years off a 30-year mortgage.