Loan Comparison Calculator — Compare Two Loans Side by Side

⚠ Disclaimer: This calculator is for informational and educational purposes only. Results are estimates and do not constitute financial advice. Consult a licensed financial advisor before making any financial decisions.

⚖️ Loan Comparison Calculator

Compare two loans side by side — find which saves you more money

🔵 Loan Option 1
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🟢 Loan Option 2
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Loan Option 1

$0
Monthly Payment
$0
Total Interest
$0
Total Cost

Loan Option 2

$0
Monthly Payment
$0
Total Interest
$0
Total Cost

✅ Key Takeaways — Loan Comparison Calculator

  • Always compare loans by total cost over the full term — not just monthly payment or interest rate
  • APR is the most accurate comparison tool — it includes fees, points, and costs the rate alone doesn’t show
  • A lower rate with higher fees can cost more than a higher rate with no fees — calculate the break-even point
  • Loan term dramatically affects total cost: a 15-year mortgage builds equity twice as fast as a 30-year
  • Use this calculator to compare FHA vs. conventional, fixed vs. ARM, and multiple lender offers side by side
Understanding Your Loan Comparison Results

When comparing two loans, the best choice depends on your goals. A lower monthly payment gives breathing room in your budget. A shorter term saves money in total interest. Use this calculator to see both payments side-by-side and calculate exactly how much you save by choosing the better option.

Key Factors When Comparing Two Loans
Total Interest Cost

Always compare total interest paid over the life of both loans. A lower payment with a longer term often costs thousands more overall.

Monthly Payment Difference

Calculate monthly savings of the lower-payment loan, then determine if those savings justify the higher total interest cost over time.

Loan Term Impact

A $300,000 loan at 7% costs ~$418,000 total over 30 years vs ~$323,000 over 15 years — a $95,000 difference in total interest.

Break-Even Analysis

If one loan has lower rates but higher upfront costs, calculate the break-even point — where cumulative savings exceed the upfront cost.

Frequently Asked Questions
How do I decide which loan is better?

Compare both the monthly payment AND the total interest paid. If you plan to stay long-term, the lower total interest loan is usually better. If you need cash flow flexibility, the lower payment may be worth the extra interest.

What is the difference between APR and interest rate?

The interest rate is the base cost of borrowing. APR includes the interest rate plus fees, points, and other costs — making it a more complete comparison tool. Always compare APRs when shopping lenders.

When does it make sense to refinance?

Refinancing makes sense when you can lower your rate by at least 0.75–1% and plan to stay long enough to recoup closing costs (typically 2–4 years).

Can I pay off a loan early to save on interest?

Yes — most loans allow early payoff without penalty. One extra payment per year on a 30-year mortgage can cut 4–5 years off the loan and save tens of thousands in interest.

How do I account for origination fees in the comparison?

Add origination fees to the loan amount for a true comparison. If a lender charges 1 point on $300,000, enter $303,000 as the loan amount to make the total cost comparison accurate.

How This Loan Comparison Calculator Works

This calculator lets you enter two loans side by side and instantly see which costs less in monthly payments, total interest, and total repayment. Use it to compare a 15-year vs 30-year mortgage, fixed vs ARM, or two lender offers.

According to the Consumer Financial Protection Bureau, even a 0.5% rate difference on a $300,000 mortgage saves over $30,000 in total interest.

🕐 Last Updated: July 11, 2026

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Written & Reviewed by

Mubashira Amanat

Founder & Financial Tools Expert · LoanMeterUSA

Mubashira built LoanMeterUSA to give everyday Americans free, accurate loan and mortgage calculators — no sign-up required. With 5+ years in financial tools and consumer finance education, she ensures every calculator is tested, transparent, and easy to use.

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