Loan Comparison Calculator
Print| Option A Monthly Payment | $0.00 / mo |
| Option A Total Interest | $0.00 |
| Option B Monthly Payment | $0.00 / mo |
| Option B Total Interest | $0.00 |
The Loan Comparison Calculator enables borrowers to compare multiple loan offers side by side. By evaluating principal amounts, interest rates (APR), loan terms, and upfront fees across competing mortgage, auto, personal, or business loan options, determine the most cost-effective financing solution.
The Loan Comparison Math Formula
To compare competing loan offers accurately, compute monthly amortized payments and total net borrowing costs including fees:
Monthly Payment (PMT) = Loan Amount × [ r(1 + r)^n ] / [ (1 + r)^n - 1 ]
Total Interest Cost = ( Monthly Payment × n ) - Loan Amount
Net Out-of-Pocket Cost = ( Monthly Payment × n ) + Upfront Lender Fees
Net Cost Savings = Net Cost (Loan A) - Net Cost (Loan B)
Side-by-Side Loan Offer Comparison
Compare three distinct financing offers for a $50,000 borrowing scenario:
| Loan Metric | Option A (Short Term) | Option B (Low Rate) | Option C (Long Term) |
|---|---|---|---|
| Loan Amount | $50,000 | $50,000 | $50,000 |
| Annual Percentage Rate (APR) | 6.50% | 7.25% | 8.50% |
| Loan Term | 3 Years (36 mos) | 5 Years (60 mos) | 7 Years (84 mos) |
| Upfront Origination Fees | $500 | $0 | $1,000 |
| Monthly Payment | $1,532.44 | $996.06 | $792.05 |
| Total Lifetime Interest | $5,167.84 | $9,763.60 | $16,532.20 |
| Total Out-of-Pocket Cost | $55,667.84 | $59,763.60 | $67,532.20 |
Step-by-Step Loan Comparison Calculation Example
Here is an example comparing a 15-year mortgage vs. a 30-year mortgage on a $300,000 home loan:
- Loan Option 1 (15-Year @ 5.5%): Monthly Payment = $2,451.24. Total Interest = $141,223.20.
- Loan Option 2 (30-Year @ 6.5%): Monthly Payment = $1,896.20. Total Interest = $382,632.00.
- Calculate Monthly Cash Flow Difference:
$2,451.24 - $1,896.20 = $555.04 extra per month for Option 1. - Calculate Total Interest Savings:
$382,632.00 - $141,223.20 = $241,408.80 total savings with Option 1.
Frequently Asked Questions
Is it better to choose a lower monthly payment or lower interest rate?
Lower monthly payments improve ongoing cash flow flexibility, but lower interest rates and shorter terms significantly decrease your total out-of-pocket borrowing costs over the life of the loan.
What is the difference between interest rate and APR when comparing loans?
Interest rate represents the annual borrowing cost of principal. APR includes interest plus lender fees, making APR the most accurate metric for side-by-side loan comparisons.
Should I pay points to lower my loan interest rate?
Paying discount points upfront lowers your interest rate. Calculate your break-even point (Upfront Points Cost / Monthly Savings) to ensure you plan to remain in the loan longer than the break-even period.
How do upfront origination fees impact loan comparisons?
Upfront origination fees increase your effective APR. Always include fees in total cost calculations when comparing a zero-fee higher-rate loan against a fee-based lower-rate loan.