APR Calculatorv1.0.0

Compare loan options with a clear view of total borrowing cost using this APR Calculator for consumer loans and mortgages. Enter the loan amount, term, nominal interest rate, and any fees to compute the real Annual Percentage Rate (APR) based on Internal Rate of Return (IRR). See how compounding and payment frequency affect required payments and long-term costs.

Evaluate affordability by reviewing the payment amount, the total of payments, and the share of principal, interest, and fees. Identify offers that look competitive on rate but add expensive fees that raise the real APR. Use monthly, biweekly, or weekly payment schedules to match your lender’s structure and generate accurate results.

Plan purchases by testing scenarios for down payments, points, and private mortgage insurance for home loans. Adjust fees or term length to target a payment that fits your budget while minimizing lifetime interest. Save and revisit inputs with automatic local storage to refine choices without retyping values.

Make informed decisions by pairing results with the visual breakdown chart. Quickly spot when fees dominate the cost or when a slightly higher rate with lower fees produces a lower APR over the same term. Share or document results by capturing the key outputs shown under each calculator.

• Personal loan with origination fee: Enter a $15,000 loan, a 36-month term, a 9.99% nominal rate, and a $450 origination fee. Compare APR with and without financing the fee to see how upfront costs change the result.
• Auto loan with weekly payments: Test a $28,000 balance at a 6.5% nominal rate over 60 months. Switch payment frequency to weekly to reflect payroll timing and evaluate the effect on the APR and total interest.
• Mortgage with points and PMI: Input a $400,000 home value, 10% down, a 30-year term, a 6.25% rate, 1.0% in points, $2,000 in fees, and $800 annual PMI. Review the APR versus the nominal rate to see the impact of points and insurance.

What is APR on a loan? APR is the yearly cost of borrowing that includes interest and eligible fees. It provides a standardized way to compare offers.

Why does APR differ from the interest rate? The nominal rate excludes fees and timing effects. APR uses IRR to include financed and upfront costs over the actual payment schedule.

Does payment frequency change APR? Payment frequency can affect the effective periodic rate and the IRR calculation, which may shift the APR slightly compared with monthly payments.

When should I compare APRs? Compare APRs when offers have different fee structures, points, or compounding rules. Use the same term and payment schedule for a fair comparison.

Payment formula: P = (r × PV) / (1 − (1 + r)⁻ⁿ). Calculate the periodic payment P using the effective periodic rate r (adjusted for compounding and payment frequency), the amount financed PV (Loan Amount + Loaned Fees), and the total number of payments n.

APR (IRR) formula: Find the annualized rate that satisfies 0 = CF₀ + Σ [ CF_t / (1 + r)^t ] for t = 1…n, where CF₀ = Amount Financed − Upfront Fees and CF_t = −Payment. Annualize r by multiplying the periodic rate by payments per year and convert to a percentage.

Payment formula: P = (r × PV) / (1 − (1 + r)⁻ⁿ). Compute the monthly payment P using the monthly rate r (annual rate ÷ 12), the loan amount PV, and the number of months n.

APR (IRR) formula: Use the same IRR approach, where CF₀ = Loan Amount − (Loan Fees + Points) and CF_t = −Monthly Payment. Annualize the periodic solution to report APR.

Use this calculator to compare two loan offers that have the same interest rate but different fees. The APR gives you a clearer picture of the true cost over time.

If you are planning to buy a home, enter your loan details and fees to see the actual cost of your mortgage, including all payments and charges.

See how upfront costs or financed fees affect your real APR. This is especially useful for determining whether rolling fees into the loan is worth it.

Use the General APR Calculator for car loans and personal loans to see how much you will really pay over time.

Change the term, interest rate, or fees to simulate different loan conditions and make informed borrowing decisions.

Calculate APR for personal loans, auto loans, and home mortgages. Include origination fees, discount points, PMI, and other charges to reveal the real borrowing cost. Compare lenders on more than the posted rate to choose the option that best fits your budget and long-term goals.

This tool is intended for informational and educational purposes only. It does not provide financial, investment, or tax advice. The amounts and payments shown are estimates and may not reflect actual figures. Results are not guaranteed and may vary based on individual circumstances. Always consult a qualified financial advisor before making any financial decisions.