30-Year Fixed Mortgage Payment Calculator
Calculate your 30-year fixed mortgage payment, total interest, and see the full amortization schedule. Free calculator with no sign-up required.
How This Calculator Works
Calculation methodology and assumptions
The 30-year fixed-rate mortgage is the most common home loan in the US. Monthly payments are calculated using the standard amortization formula: M = P[r(1+r)^n]/[(1+r)^n-1], where P is the principal, r is the monthly interest rate, and n is the number of payments (360 for a 30-year loan). Extra payments reduce principal faster, cutting total interest and payoff time.
How to Use This Mortgage Calculator
- 1
Enter the home price
Input the purchase price of the home you're considering. The calculator pre-fills Fixed Mortgage's median home value as a starting point.
- 2
Set your down payment
Enter your down payment percentage. Conventional loans typically require 5–20%, FHA loans as low as 3.5%, and VA loans may require 0% down. A larger down payment reduces your monthly payment and eliminates PMI at 20%.
- 3
Input your interest rate
Enter the rate from your lender's quote or pre-approval letter. Rates vary by credit score, loan type, and term length. Check Bankrate or Freddie Mac's PMMS for current averages.
- 4
Choose your loan term
Select 30-year (lower payments, more total interest) or 15-year (higher payments, significant interest savings). A 15-year loan on $300K saves roughly $150K+ in total interest.
- 5
Review the full cost breakdown
Look beyond the monthly principal & interest payment. The total includes property taxes, homeowner's insurance, and PMI if applicable. Your true "housing cost" is this full PITI amount.
Example Calculation
Here's a realistic mortgage scenario for a home purchase in Fixed Mortgage.
You're buying a home for $350,000 with 10% down ($35,000), borrowing $315,000 at 6.75% for 30 years. Your monthly principal & interest payment would be approximately $2,043. Add estimated property taxes of $350/month, homeowner's insurance of $150/month, and PMI of $132/month (since you're under 20% down). Your total monthly housing cost is approximately $2,675.
Result: Over the 30-year life of this loan, you'll pay approximately $420,480 in total interest — more than the original home price. Making just one extra payment per year could shave 4–5 years off the loan and save $60K+ in interest. That's why understanding the full amortization picture matters.
What Affects Your Results
Credit Score
Your credit score is the single biggest factor in your rate. A 760+ score might get 6.5%, while a 660 score could mean 7.5% — adding $200+/month on a $300K loan.
Loan-to-Value Ratio
Higher down payments (lower LTV) get better rates and eliminate PMI. Crossing the 80% LTV threshold removes PMI, saving $100–$300/month.
Debt-to-Income Ratio
Lenders cap your total monthly debt payments (including the new mortgage) at 43–50% of gross income. High existing debt limits how much you can borrow.
Loan Type
Conventional, FHA, VA, and USDA loans each have different rate structures, down payment requirements, and fee schedules. VA and USDA often offer the lowest rates for eligible borrowers.
Property Taxes & Insurance
Fixed Mortgage property tax rates and local insurance costs add significantly to your monthly housing payment. These vary dramatically by location.
Tips for Fixed Mortgage Residents
- Get pre-approved, not just pre-qualified. Pre-approval involves a hard credit pull and income verification, giving you a firm budget and making your offers more competitive.
- Compare at least 3 lenders. Rates and fees vary significantly — even 0.25% lower saves thousands over the loan's life. Don't just check big banks; credit unions and online lenders often have competitive rates in Fixed Mortgage.
- Consider points vs. rate. Paying 1 discount point (1% of loan amount) typically lowers your rate by 0.25%. This pays off if you stay in the home 4+ years.
- Don't drain your savings for a larger down payment. Keep 3–6 months of expenses in reserve after closing. Unexpected repairs are common in the first year of homeownership.
- Factor in closing costs (2–5% of loan amount) when budgeting. These are separate from your down payment and due at closing.
Get Weekly Financial Insights
State-specific tax updates, calculator tips, and money-saving strategies — free, no spam.
No spam, ever. Unsubscribe anytime. We respect your privacy.
StateCalc Team
Editorial Team
The StateCalc team builds free financial calculators using data from official government sources including the IRS, U.S. Census Bureau, BLS, and state revenue departments. All formulas are validated by an automated test suite and cross-referenced against published data.
Our editorial standardsFrequently Asked Questions
What is a 30-year fixed mortgage?
A 30-year fixed-rate mortgage is a home loan with a constant interest rate and monthly payments that remain the same for 30 years (360 payments). It is the most popular mortgage type in the United States.
What is the current 30-year mortgage rate?
As of 2026, 30-year fixed mortgage rates are approximately 6.5-7.0%. Rates change daily based on economic conditions. Check Freddie Mac PMMS for the latest weekly average.
How much house can I afford?
A common rule is the 28/36 rule: spend no more than 28% of gross income on housing and 36% on total debt. On a $100,000 income, that means up to $2,333/month for housing.
Should I make extra mortgage payments?
Extra payments go directly to principal, reducing total interest and payoff time. Even $100/month extra on a $300,000 loan at 7% saves over $70,000 in interest and cuts 5 years off the loan.
People Also Calculate
Frequently used together with this calculator