Finance CalculatorsClient-Side Calculation Engine

Loan Calculator

Calculate loan payments, total interest, and amortization schedule.

Calculator Inputs
Instant Math

$

Results & Calculation SummaryVerified

Estimated monthly Payment

$299.71

A loan of $10,000.00 at 5% interest over 3 years results in a monthly payment of $299.71. Total interest paid will be $789.52.

Total Interest Paid

$789.52

Total Loan Cost

$10,789.52

Financial Disclaimer: Results are estimates for informational and educational purposes and may differ from actual lender, bank, tax, or investment results.

What is Loan Calculator and How is it Calculated?

The CalcTower Loan Calculator determines estimated monthly payments, total interest costs, and full payment amortization schedules for personal, auto, student, or business loans.

Worked Calculation Examples
3-Year Personal Loan
Input:Loan: $10,000 | Rate: 5% | Term: 3 Years | Monthly
Output:Monthly Payment: $299.71 | Total Interest: $789.52

36 monthly payments of $299.71 pay off $10,000 loan + $789.52 total interest.

Common Real-World Use Cases

Comparing Loan Offers

Run the same loan amount at two different rates or terms to see which offer actually costs less in total interest, not just monthly payment.

Personal or Auto Loan Budgeting

Check whether a planned personal or auto loan’s monthly payment fits your budget before applying.

Reviewing a Payment Timeline

Use the amortization schedule to see exactly how much of each payment reduces the balance versus covers interest.

What the Total Interest Figure Means

The total interest amount is the real cost of borrowing - what you pay the lender on top of the amount you borrowed. A lower monthly payment from a longer term usually means paying more total interest overall, since the balance stays higher for longer. Comparing total interest (not just monthly payment) across different rates or terms shows which option is actually cheaper over the life of the loan.

How to Use the Loan Calculator
  1. 1Enter total Loan Amount.
  2. 2Enter annual Interest Rate (%).
  3. 3Select Loan Term in years.
  4. 4Choose Payment Frequency (Monthly, Bi-weekly, Weekly, Annually).
  5. 5View required periodic payment and total interest paid.
Pro Tips & Suggestions
  • •Shorter loan terms require higher monthly payments but save significant money in total interest.
  • •Click "View Amortization Schedule" to inspect payment-by-payment principal vs interest breakdowns.
Financial Disclaimer

Results are estimates for informational and educational purposes and may differ from actual lender, bank, tax, or investment results.

Frequently Asked Questions

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