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APR Calculator Tools
6.50%
$683k
APR Comparison Examples
| Interest Rate | Origination Fee | APR | Monthly Payment (on $300k) | Total Interest (30yr) |
|---|---|---|---|---|
| 5.0% | $0 | 5.00% | $1,610 | $279,500 |
| 5.5% | $0 | 5.50% | $1,703 | $312,900 |
| 6.0% | $0 | 6.00% | $1,799 | $347,500 |
| 6.5% | $0 | 6.50% | $1,896 | $382,560 |
| 6.5% | $3,000 | 6.64% | $1,920 | $390,500 |
| 7.0% | $0 | 7.00% | $1,996 | $418,600 |
Understanding APR (Annual Percentage Rate)
What is APR?
APR (Annual Percentage Rate) is the true cost of borrowing expressed as a yearly percentage. Unlike the interest rate alone, APR includes not just the interest but also fees, points, and other costs associated with the loan. This makes APR more accurate for comparing loans because it shows the complete cost.
APR vs Interest Rate
- Interest Rate: Just the cost of borrowing the principal. Doesn't include fees.
- APR: Interest rate PLUS all fees and costs, expressed as annual percentage.
- Example: 6% interest + $3,000 fee on $300,000 loan ≈ 6.64% APR (higher than stated rate)
Components Included in APR
- Interest Rate: The base borrowing cost
- Origination Fees: Upfront fee for processing loan (typically 0.5-1.5%)
- Discount Points: Prepaid interest to buy down rate
- Broker Fees: If using a mortgage broker
- Processing Fees: Administrative costs
- Underwriting Fees: Cost to evaluate your loan
- Appraisal Fees: For mortgages (cost of property valuation)
Why APR Matters
- True Comparison: Shows actual cost of borrowing, not just rate
- Hidden Costs: Reveals fees you might otherwise miss
- Loan Comparison: Allows fair comparison between different offers
- Total Cost: Helps understand real impact on your finances
APR Calculations
- Method: APR iteratively calculated to make present value of all payments (including fees) equal loan amount
- Formula: Essentially solves: Loan = Σ(Payment/(1+APR/12)^month) - Fees
- Accuracy: Most lenders must disclose APR under Truth in Lending Act (TILA)
Real-World Example
- Scenario: $300,000 mortgage, 30 years
- Option 1: 6% interest, $2,000 fees → 6.18% APR
- Option 2: 5.8% interest, $4,000 fees → 5.98% APR
- Decision: Option 2 better despite higher fees, because APR accounts for lower rate
Common APR Examples
- Mortgages: Usually within 0.2-0.5% of interest rate
- Auto Loans: Usually within 0.1-0.3% of interest rate
- Credit Cards: APR is always higher than just the interest rate quoted
- Payday Loans: Can be 300-500% APR (extremely expensive)
Frequently Asked Questions
Is APR required by law?
Yes, lenders must disclose APR under the Truth in Lending Act (TILA). They must show both interest rate and APR so you can make informed decisions.
Can APR change over time?
For fixed-rate loans, APR stays the same. For variable-rate loans, APR can change when the interest rate adjusts. Always check your loan terms.
What if APR is lower than interest rate?
This shouldn't happen if calculated correctly. APR should be equal to or higher than interest rate because it includes fees. If not, check the calculation.
How accurate is this calculator?
Good estimate for comparing loans. Official APR calculated by lenders may vary slightly due to different fee schedules and assumptions. Use for comparison purposes.
What APR is considered good?
Depends on loan type and credit. Good mortgage: 4-6%. Good auto loan: 3-8%. Good credit card: 10-25%. The lower the better, but shop based on your credit score.
Does paying off early affect APR?
APR doesn't change with early payoff, but you pay less interest overall. If you pay off in 15 years instead of 30, your total interest cost is much lower despite same APR.
Should I choose low APR or low payment?
Lower APR reduces total cost, which is usually more important than monthly payment. However, if payment isn't affordable, lower APR doesn't help. Balance both.
Do discount points reduce APR?
Yes. Paying points (1 point = 1% of loan) upfront reduces APR for the life of the loan. Worth it if you keep loan 7+ years.
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