Home  /  Debt & Interest Calculators  /  Loan Comparison Calculator
Loan Comparison Calculator

Compare two loans side by side.

Compare monthly payments, interest rates, repayment terms, upfront finance charges, estimated APR and total borrowing costs for two fixed-rate loan scenarios.

Loan A

Enter Loan A

Enter the principal, rate, repayment term and any upfront finance charges.

Annual fixed rate (%).
Assumed deducted from loan proceeds.
Loan B

Enter Loan B

Compare a different combination of principal, rate, term and fees.

Annual fixed rate (%).
Assumed deducted from loan proceeds.
Estimated borrowing-cost difference
$0
Compare the two loan scenarios below.

Loan A

Monthly payment $0
Estimated APR 0%
Total interest $0
Total payments $0
Total borrowing cost $0

Loan B

Monthly payment $0
Estimated APR 0%
Total interest $0
Total payments $0
Total borrowing cost $0
Loan Comparison

Look beyond the monthly payment

A lower payment can come from a lower rate, a longer term, or both. Compare the complete estimated cost of each loan option.

Loan A

Loan amount $0
Net estimated proceeds $0
Interest rate 0%
Estimated APR 0%
Loan term 0 months
Upfront finance charges $0
Monthly payment $0
Total interest $0
Total estimated borrowing cost $0

Loan B

Loan amount $0
Net estimated proceeds $0
Interest rate 0%
Estimated APR 0%
Loan term 0 months
Upfront finance charges $0
Monthly payment $0
Total interest $0
Total estimated borrowing cost $0
Cost Differences

See where the two loans differ

Monthly payment difference $0 Difference between the two monthly payments.
Total interest difference $0 Difference in estimated interest over the full terms.
Estimated APR difference 0% Difference between the two estimated annual percentage rates.
Repayment-term difference 0 months Difference in the number of scheduled monthly payments.
Balance Over Time

Compare how the two loan balances decline

See the estimated remaining balance and cumulative interest at the end of each year.

Year Loan A Balance Loan A Interest Paid Loan B Balance Loan B Interest Paid
Understanding Loan Comparisons

Why the lowest monthly payment is not always the lowest-cost loan

Monthly payment is only one part of a loan comparison. Interest rate, repayment term and upfront charges can all change the total amount paid.

Interest rate

With the amount and repayment term unchanged, a lower interest rate generally reduces both the monthly payment and total interest.

Loan term

Extending repayment over more months can reduce the monthly payment, but it may also cause interest to be paid for a longer period.

Upfront fees

Finance charges can increase the effective cost of borrowing even when they do not change the stated interest rate or scheduled payment.

APR

APR provides an annualized way to look at the interest rate together with certain finance charges. This calculator estimates APR using net loan proceeds and the scheduled payment stream.

Total borrowing cost

For this calculator, estimated borrowing cost is the total scheduled payments minus the net proceeds received after the entered upfront charges.

What this calculator compares

Estimated borrowing cost = total scheduled payments − net proceeds received
✓ Loan amount for each option
✓ Fixed annual interest rate
✓ Repayment term in months
✓ Upfront finance charges
✓ Estimated monthly payment
✓ Total scheduled payments and interest
✓ Estimated APR based on net proceeds
✓ Remaining balance comparison by year

Loans with different principal amounts can still be compared, but the results are generally easiest to interpret when both options provide the same amount of financing.

Loan Comparison Calculator FAQ

Frequently asked questions

What should I compare when looking at two loans?

Useful comparison points include loan amount, monthly payment, interest rate, APR, repayment term, upfront charges, total interest and estimated total borrowing cost.

Is the loan with the lowest monthly payment always less expensive?

No. A longer repayment term can lower the monthly payment while increasing the amount of interest paid over the life of the loan.

Is the lowest interest rate always the lowest-cost loan?

Not necessarily. Fees and repayment term can also affect the overall cost, so it can be useful to compare more than the stated rate alone.

Why does this calculator show both interest rate and APR?

The interest rate is used to calculate interest on the loan principal. Estimated APR also reflects the entered upfront finance charges by comparing the payment stream with net proceeds.

How are upfront finance charges handled?

This calculator assumes the entered charges reduce the proceeds received, while scheduled payments remain based on the full stated loan amount.

Can I compare loans with different terms?

Yes. Comparing different repayment terms helps show how a shorter or longer term can change monthly payment and total interest.

Can I compare loans with different amounts?

Yes, although comparisons are generally easier to interpret when both loans provide the same principal amount.

Why might a lender's calculations be different?

Lenders may use different payment dates, fee treatment, rounding, daily-interest calculations, irregular payment periods and other contract-specific methods.

Is the estimated APR an official lender APR?

No. It is an educational estimate based on the inputs entered. Official disclosures can depend on transaction-specific rules regarding which fees and finance charges are included.

LoanMathWorks provides calculators and educational information for general informational purposes only. Results are estimates and should not be considered financial, lending, tax or legal advice. LoanMathWorks is not a lender. Actual loan payments, APR calculations, fees, interest charges and repayment terms may vary.