Loan Calculators

Personal Loan Calculator

Estimate the monthly payment, total interest, and total cost of a personal loan at any rate and term.

Personal loan APRs vary widely by credit profile — use the rate you've actually been offered.

$
%
yr
Monthly payment
$330
5 years at 11.5% APR.
Total interest
$4,793
Total paid
$19,793
Overview

How the Personal Loan Calculator Works

Personal loans are common for debt consolidation, large purchases, and home improvements. They're also one of the easiest places to overpay if you don't compare offers. This calculator shows monthly payment and total interest for any amount, APR, and term so you can compare two offers in seconds.

Formula

The Math Behind the Calculator

Monthly payment = P × r / (1 − (1 + r)^−n), where P is the loan amount, r is the monthly rate (APR ÷ 12), and n is the number of monthly payments.

Example

A Worked Example

A $15,000 personal loan at 11.5% APR over 5 years has a monthly payment of about $330 and total interest of $4,793. Dropping the APR to 8.5% saves over $1,300 in interest.

How to use

How to Use the Personal Loan Calculator

  1. 1Enter the loan amount you're requesting.
  2. 2Enter the APR from the lender's quote — not the advertised 'starting from' rate.
  3. 3Choose the term — shorter terms mean higher payments but much less interest.
Interpretation

What the Results Mean

  • Monthly payment is fixed for the life of the loan.
  • Total interest is the cost of borrowing — compare across multiple offers, not just the monthly payment.
Avoid

Common Mistakes to Avoid

  • Confusing APR with the interest rate. APR includes fees and is the number to compare.
  • Picking the longest term to lower the monthly payment without noticing total interest doubles.
  • Using a personal loan to pay off a credit card and then running the card back up.
Keep going

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FAQ

Frequently Asked Questions

Are personal loans cheaper than credit cards?+

Usually yes. Personal loan APRs typically run 7–18% versus 20–28% for credit cards, but it depends on your credit.

Do personal loans have prepayment penalties?+

Most reputable lenders no longer charge them, but read your loan agreement to confirm.

Will applying hurt my credit?+

A hard inquiry temporarily lowers your score a few points. Many lenders offer pre-qualification with a soft pull first.

Financial Disclaimer

This calculator is for educational and estimation purposes only. It does not provide financial, mortgage, tax, investment, or legal advice. Actual rates, payments, taxes, fees, insurance costs, eligibility, and loan terms vary by lender, location, credit profile, and market conditions. Always compare official offers and consult a qualified professional before making financial decisions.

Last updated June 2026 · Prepared by the mCalculator Editorial Team