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15 vs 30 Year Mortgage Calculator

See both loan terms side by side. Higher monthly payment vs lower lifetime interest β€” which trade-off makes sense for you?

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15-Year Mortgage

Monthly P&I

$2,674.48

Total Interest$161,406
Total Paid$481,406

30-Year Mortgage

Monthly P&I

$2,075.51

Total Interest$427,185
Total Paid$747,185

The Bottom Line

Extra Interest with 30-Year

$265,779

Extra Monthly Cost with 15-Year

$598.96

Choosing Between 15 and 30 Years

The 15-year vs 30-year mortgage decision is one of the biggest financial choices a homeowner makes. The 30-year loan keeps the monthly payment low and the budget flexible. The 15-year loan dramatically slashes interest and builds equity quickly, but it locks you into a much higher payment.

When 30 Years Wins

Pick a 30-year if you are early in your career, have variable income, want maximum cash flow for investing, or live in a high-cost area. The lower required payment is a safety cushion in tough months.

When 15 Years Wins

Pick a 15-year if you have a stable income, an emergency fund, and you are already maxing tax-advantaged retirement accounts. You'll be debt-free a decade earlier with hundreds of thousands of additional net worth.

The Hybrid Approach

Many borrowers take a 30-year mortgage and voluntarily pay extra principal each month β€” often enough to mimic a 20-year payoff. That captures most of the interest savings while keeping the lower required payment as a safety net.

Frequently Asked Questions

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