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Loans & Debt

How to calculate APR vs interest rate (and why it matters)

Learn why APR is the true borrowing cost. See examples for loans and credit cards so you don't overpay.

Explainer

  • Interest Rate: Cost of borrowing without most fees.
  • APR: Annualized rate that includes fees (origination, certain costs).

Why it matters

  • For installment loans, compare APR across lenders.
  • For credit cards, purchase APR + fees define real cost of carrying a balance.

Steps to compare offers

  1. Line up APR, fees, term.
  2. Calculate total interest over the life of the loan.
  3. Watch compounding and promotional rates.

Frequently Asked Questions

Is a lower interest rate always cheaper?

Not if fees make the APR higher.

Do all fees go into APR?

Not always (varies by product/region). Compare total cost too.

Calculate Your Cost

Use our APR vs. Rate calculator to see your real cost in seconds.