Personal Loan Calculator

Calculate personal loan payments, total interest, and total cost. Compare terms from 12–84 months with optional origination fee impact on true cost.

$
%
mo
Deducted from loan proceeds
%
Monthly Payment
$384.05
Principal + interest per month
Total Interest
$3,434.43
Total interest over loan life
Total Cost
$18,434.43
Over 48 months
Fee Impact
Origination Fee
$450.00
3.0% of loan amount
Net Proceeds
$14,550.00
What you actually receive
True Cost of Borrowing
$3,884.43
Interest + origination fee
Effective APR
12.12%
vs 10.50% stated rate
Planning notes, formulas, and examples

About the Personal Loan Calculator

A personal loan is an unsecured, fixed-rate loan that you repay in equal monthly installments over a set term. Banks, credit unions, and online lenders offer personal loans for debt consolidation, home improvements, medical expenses, and virtually any other purpose.

Because personal loans are unsecured — no collateral required — interest rates are typically higher than secured loans like mortgages or auto loans. Rates range from about 6% for excellent credit to 36% for subprime borrowers. The term, usually 12 to 84 months, also affects your monthly payment and total interest.

This Personal Loan Calculator shows your monthly payment, total interest, and total cost for any amount, rate, and term. It also includes an optional origination fee toggle that reveals the true cost of borrowing after upfront fees are deducted from your loan proceeds. By adjusting the term length and comparing different rate offers, you can find the repayment plan that balances affordable monthly payments with the lowest possible total interest cost.

When This Page Helps

Comparing personal loan offers requires more than looking at interest rates. Origination fees (typically 1–8% of the loan), term length, and total cost all affect the real price of borrowing. This calculator exposes the complete borrowing cost structure so you can choose the loan that truly costs the least. Even a small rate difference can translate into hundreds of dollars over a multi-year term.

How to Use the Inputs

  1. Enter the loan amount you need to borrow.
  2. Set the annual interest rate from your lender quote.
  3. Choose a repayment term in months (12–84).
  4. Optionally enter an origination fee percentage to see its impact.
  5. Review your monthly payment, total interest, and total cost.
  6. Adjust the term to see how shorter or longer periods change the payment and total cost.
Formula used
Monthly Payment M = P × r(1+r)^n / ((1+r)^n − 1), where P = loan amount, r = monthly rate, n = months. Total Interest = (M × n) − P. With origination fee: Net Proceeds = P × (1 − fee%). Effective rate is higher because you repay the full amount but receive less.

Example Calculation

Result: $383.98/month — $3,431 total interest — $450 origination fee

A $15,000 loan at 10.5% for 48 months produces a $383.98 monthly payment. Total payments are $18,431, so total interest is $3,431. The 3% origination fee ($450) is deducted from proceeds — you receive $14,550 but repay $18,431, making the true cost $3,881.

Tips & Best Practices

  • Your credit score is the biggest factor in the rate you receive — check and improve it before applying.
  • Compare offers from banks, credit unions, and online lenders — rates vary widely for the same borrower.
  • A shorter term means higher payments but significantly less total interest.
  • Origination fees increase your effective rate — a 10% loan with a 5% fee costs more than an 11% loan with no fee.
  • Avoid variable-rate personal loans if you want payment predictability.
  • Only borrow what you need — a larger loan means more interest even at the same rate.

How Personal Loans Work

You apply for a specific amount, receive a rate quote based on your creditworthiness, and choose a term. Once approved, the lender deposits funds (minus any origination fee) into your account. You make fixed monthly payments until the loan is fully repaid.

The Impact of Origination Fees

An origination fee reduces your actual proceeds while keeping your repayment amount the same. This effectively raises the annual percentage rate (APR) above the stated interest rate. When comparing offers, always look at the APR — it includes the fee impact — rather than the interest rate alone.

When to Use a Personal Loan

Personal loans work best for debt consolidation (replacing high-rate credit cards), large planned expenses (home renovation, medical procedure), or bridging a temporary cash need. They are less ideal for recurring expenses or when you could save up instead.

Sources & Methodology

Last updated:

Methodology

This page models a fixed-rate unsecured installment loan with equal monthly payments. It solves the standard amortization formula from loan amount, APR, and term, then compares total repayment against optional origination fees so users can see both stated interest cost and the higher effective borrowing cost when net proceeds are reduced by fees.

It is a planning worksheet rather than a final lender disclosure. Actual personal-loan APR depends on which fees are finance charges, whether fees are withheld or financed, and the lender's exact contract terms.

Sources

  • Installment loans (Investor.gov / U.S. Securities and Exchange Commission) — SEC glossary definition of installment loans as fixed-payment obligations repaid over a set term.
  • § 1026.22 Determination of annual percentage rate (Consumer Financial Protection Bureau) — Regulation Z APR rule used as the benchmark for comparing stated loan rate with fee-adjusted annual cost.

Frequently Asked Questions

  • A personal loan is an unsecured loan with a fixed interest rate and fixed monthly payments over a set term. Unlike mortgages or auto loans, no collateral is required. You can use the funds for almost any purpose — debt consolidation, home improvements, medical bills, or major purchases.