Finance
Instant, private, and free
Loan Comparison Calculator.
Compare two loans using explicit rates, terms, fees, and payments.
Set your values
Results update as you type.
FAQs
How does the loan comparison calculator work?
Enter the requested values to receive a deterministic result. No live market, tax, or jurisdiction data is inferred.
Use Cases
Choosing Between Loan Offers
When you receive multiple loan offers from different lenders, use this calculator to compare the monthly payments and total interest. This helps you pick the most cost-effective option.
Example: Compare a 15-year loan at 3.5% with a 30-year loan at 4.0% for the same amount.
Refinancing Decision
If you're considering refinancing an existing loan, compare your current loan with a new one to see if the lower interest rate or shorter term saves you money in the long run.
Example: Compare your current 30-year mortgage at 4.5% with a new 20-year loan at 3.8%.
Frequently Asked Questions
- What does the Loan Comparison Calculator do?
- It compares two fixed-rate loans side by side, showing you the monthly payment and total interest for each. This helps you see which loan is more affordable over time.
- What inputs do I need to use the calculator?
- You'll need to provide the loan amount, interest rate, and loan term for each of the two loans you want to compare. The calculator then computes the monthly payment and total interest for each.
- Can I compare loans with different terms?
- Yes, you can enter different loan amounts, interest rates, and terms for each loan. The calculator will show you the monthly payment and total interest for each, making it easy to see the trade-offs.
Tips & Common Mistakes
Tips
- Enter the exact loan amount, interest rate, and term for each loan to get accurate comparisons.
- Remember that a lower monthly payment may mean higher total interest over the life of the loan.
- Use the calculator to see how different down payments affect your monthly payments and total interest.
- Consider the total interest paid, not just the monthly payment, when deciding which loan is better for you.
Common Mistakes to Avoid
- Forgetting to convert the interest rate to the same format (e.g., annual percentage rate) for both loans.
- Using the loan term in months instead of years, or vice versa, without adjusting the calculation.
- Ignoring additional fees or costs that may be associated with one loan but not the other.
Last updated: August 13, 2026