True loan cost calculator

APR Calculator

Estimate the annual percentage rate of a loan after interest, fees, points, financed costs, and mortgage insurance are considered. Use it to compare loan offers that do not have the same fee structure.

Interest rate 0% Estimated APR 0%

General loan

General APR Calculator

Use this for personal loans, installment loans, equipment loans, and other fixed-payment loans where fees can be paid upfront or added to the balance.

APR estimate 0%

Your general loan APR estimate will appear here.

Payment $0
Amount financed $0
Net cash benefit $0
Total interest $0

Cost composition

Principal Interest Fees

General formula used

APR is estimated from the periodic rate that makes payment present value equal the net cash benefit of the loan.

Mortgage APR

Mortgage APR Calculator

Use this for a mortgage-style APR estimate that includes loan fees, points, and optional annual mortgage insurance in the payment stream.

Mortgage APR estimate 0%

Your mortgage APR estimate will appear here.

Loan amount $0
P&I payment $0
Monthly APR payment $0
APR fees and points $0
Interest rate
Estimated APR

Mortgage formula used

Mortgage APR is estimated from the monthly rate that equates the payment stream with loan amount minus APR-related fees.

Method

How This APR Calculator Works

The calculator first estimates the regular payment from the note interest rate, loan balance, term, and payment frequency. It then asks a second question: what annualized rate would make those payments equivalent to the cash benefit the borrower actually receives after APR-related fees?

That second rate is the estimated APR. It is usually higher than the stated interest rate when upfront costs, points, or required insurance are included.

Data and source notes: No lender disclosure or live rate data is used. The CFPB Loan Estimate explainer shows that borrowers should review loan amount, monthly principal and interest, estimated total monthly payment, closing costs, prepayment penalties, balloon payments, and mortgage insurance. This calculator is a planning estimate, not an official APR disclosure.

Review the CFPB Loan Estimate explainer.

Interpretation

APR Is a Comparison Tool, Not the Whole Decision

APR helps compare loans with different fee structures, but it assumes a particular payoff schedule. If you plan to refinance, sell, or pay off the loan early, upfront fees may matter more than the APR alone suggests.

For a short holding period, a lower-fee loan can be better even if its APR is slightly higher. For a loan held to maturity, a lower APR may be more meaningful.

Source quality

Data Sources and Quality Notes

This APR calculator does not pull live lender rates or official disclosure data. It uses the loan amount, note rate, term, payment frequency, and APR-related costs entered on the page, then estimates the annualized borrowing cost from those assumptions.

Official comparison document

For mortgage offers, compare this estimate with the lender's Loan Estimate and Closing Disclosure. Those documents show the official APR and itemized costs for a specific offer.

Fee treatment matters

Origination fees, points, required insurance, and other finance charges can raise APR even when the note interest rate is unchanged.

Planning limitation

This page is a transparent planning tool, not a legal APR disclosure. Borrowers should verify the final APR with lender documents before choosing a loan.

Practical examples

Where APR Helps

APR is most useful when the advertised rate does not tell the whole cost story.

Loan A has lower rate but higher fees

A lender may offer a lower interest rate with thousands of dollars in origination fees. APR helps turn that trade-off into one annualized number.

Mortgage points change the rate

Discount points can lower the note rate, but they are paid upfront. APR helps show whether the lower rate is being purchased with enough cost to change the true comparison.

Early payoff changes the answer

If the borrower expects to refinance or move soon, upfront fees have less time to be spread across payments. In that case, compare APR with break-even timing.

APR vs rate

Interest Rate, APR, and APY Are Not the Same

The note interest rate is the rate used to calculate loan interest. APR is a borrowing-cost disclosure that can include certain fees. APY is more common for savings products and reflects compounding yield.

Because APR rules vary by loan type and jurisdiction, a calculator estimate should be treated as a planning tool rather than a formal disclosure.

Fees to ask about
  • Origination or administration fees
  • Discount points
  • Mortgage broker compensation
  • Processing or underwriting fees
  • Mortgage insurance included in APR
  • Prepaid or escrow items excluded from APR

Related tools

Related Calculators

Use these tools to check the payment, loan schedule, and refinance implications behind an APR comparison.

Payment math Payment Calculator

Calculate fixed payment, payoff time, or supported loan amount.

 Mortgage payment Mortgage Calculator

Estimate principal, interest, taxes, insurance, PMI, HOA, and amortization.

 Refinance cost Refinance Calculator

Check break-even time when points and fees are tied to a new rate.

 Compounding Interest Calculator

Compare simple interest, compound interest, APY, fees, and inflation effects.

FAQ

APR Calculator FAQ

Can APR be lower than the interest rate?

In ordinary fixed-rate loan examples with fees, APR is usually higher. Unusual credits, assumptions, or calculation rules can create exceptions, so lender disclosures should be reviewed carefully.

Why does APR change when fees are paid upfront?

Upfront fees reduce the borrower's net cash benefit. The payment may be based on the full loan balance, but the borrower effectively received less value after paying the fee.

Are escrow, taxes, and insurance always part of APR?

No. Some prepaid or escrow-related amounts may not be included in formal APR disclosures. This calculator focuses on common APR-related costs entered by the user.

Should I choose the lowest APR?

Not automatically. Consider expected holding period, cash needed at closing, prepayment plans, loan flexibility, variable-rate risk, and total payment.

Is this a legal APR disclosure?

No. It is an educational estimate. Lenders calculate official APR under applicable disclosure rules and loan-specific assumptions.

What does APR mean?

APR means annual percentage rate. It is an annualized borrowing cost that can include the note interest rate plus certain loan fees and charges.

Is APR the same as APY?

No. APR is commonly used for loan cost disclosure. APY is commonly used for deposit yield and includes compounding effects.

Can two loans with the same payment have different APRs?

Yes. If one loan requires higher upfront fees or points, its APR can be higher even when the monthly payment is similar.

Disclaimer

This calculator is for general informational purposes and simple arithmetic checks. It is not a loan estimate, legal disclosure, financial advice, tax advice, or lending approval. Verify APR, fees, payment schedules, and disclosure rules with the lender or a qualified professional.