Personal Loan Calculator

Calculate your monthly payment, total interest, and true cost for any personal loan in seconds.

Loan Details

$
$500$100K
%
1%36%
% of loan (optional)
%
Monthly Payment
$—
Per month
Total Interest
$—
Cost of borrowing
Total Cost
$—
Principal + interest + fee
Effective APR
—%
With origination fee

Payment Breakdown

Balance Over Time

Rate Comparison

RateMonthly PaymentTotal InterestTotal Cost

How Personal Loan Interest Works

Personal loans use simple amortization: each monthly payment covers the interest accrued during that period, with the remainder reducing your principal. Early payments are mostly interest; later payments are mostly principal.

Personal Loan Payment Formula

Monthly Payment = P × [r(1+r)^n] / [(1+r)^n − 1] Where: P = Loan principal amount r = Monthly interest rate = APR ÷ 12 n = Loan term in months Example: $15,000 loan at 11.5% APR for 36 months r = 11.5% ÷ 12 = 0.9583%/month Monthly Payment = $15,000 × [0.009583 × (1.009583)^36] / [(1.009583)^36 − 1] Monthly Payment ≈ $493

Tips for Getting the Best Personal Loan Rate

Your interest rate depends primarily on your credit score. Borrowers with scores above 750 typically qualify for rates below 8–10%. Improving your score by even 50 points before applying can save hundreds or thousands in interest. Also compare origination fees — a low rate with a high fee may be worse than a higher rate with no fee.

Frequently Asked Questions

Most lenders require a minimum score of 580–640 for approval, but you'll get the best rates with 720+. Many online lenders offer loans to borrowers with scores as low as 560, but at high APRs (25–36%). Credit unions often offer better rates for members with mid-range credit (640–700).

An origination fee is typically 1–8% of the loan amount, deducted from your proceeds or added to your balance. If you borrow $15,000 with a 3% origination fee, you receive $14,550 but pay back $15,000. This effectively increases your APR. Always factor origination fees into your rate comparison.

If your personal loan APR is lower than your credit card APR (often 18–29%), debt consolidation can save significant money and simplify payments. The key is to not accumulate new credit card debt after consolidating. A personal loan also has a fixed end date, giving you a clear payoff timeline.