Personal Loan

Recommendations

  • Most personal loans are unsecured, which is why their rates tend to run higher than a secured loan (like a mortgage or auto loan) backed by collateral.
  • If you own your home, a Home Equity / HELOC Calculator may offer a lower rate for the same purpose, at the cost of putting your home up as collateral.
  • See how this payment affects your overall budget with the Debt-to-Income (DTI) Calculator.

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Disclaimer

This calculator provides estimates for informational purposes only and does not constitute financial, medical, legal, or tax advice. Always consult a qualified professional about your specific situation.

Turning Loan Terms Into a Fixed Monthly Payment

A personal loan’s fixed monthly payment is calculated from the loan amount, interest rate, and term using the standard amortization formula. Enter those three figures and this calculator shows your fixed monthly payment, plus how much you’ll pay in total over the life of the loan and how much of that is interest — along with how your rate compares to the typical range for unsecured personal loans.

Personal loans are commonly used for debt consolidation, home improvement, medical bills, or a major purchase. Unlike a Loan Calculator‘s more general scope, this page’s analysis and recommendations are aimed specifically at the unsecured-personal-loan case.

The Formula

The standard fixed-rate amortization formula:

M=P×r(1+r)n(1+r)n1M = \vA{P} \times \frac{\vB{r}(1+\vB{r})^{\vC{n}}}{(1+\vB{r})^{\vC{n}} - 1}

where MM is the monthly payment, P\vA{P} is the loan principal, r\vB{r} is the monthly interest rate (the annual rate divided by 12), and n\vC{n} is the total number of monthly payments (the term in months).

Worked Example

A $15,000 loan at 12% annual interest over 48 months:

  1. Monthly rate: r=12%÷12=1%\vB{r} = 12\% \div 12 = 1\%.
  2. Applying the formula gives a monthly payment of about $395.01.

Over the full 48 months, that’s about $18,960.36 paid in total — roughly $3,960.36 of which is interest on top of the amount borrowed.

Key Factors to Consider

  • Origination fees are common on personal loans and reduce the amount actually disbursed. A lender may deduct a fee (often 1-8% of the loan amount) directly from the loan proceeds before disbursing the rest — meaning a borrower can receive noticeably less cash than the stated loan amount, which the APR (rather than the interest rate alone) is designed to capture.
  • Using a personal loan to consolidate higher-interest debt only helps if the new rate is genuinely lower. Consolidating several credit card balances into one personal loan can simplify payments and reduce interest cost — but only if the personal loan’s rate is meaningfully below the average rate on the debt being paid off, which is worth confirming rather than assuming.
  • Prepayment penalties exist on some personal loans, though they’re less common than they used to be. Paying off a personal loan early generally saves interest, but a small number of lenders still charge a fee for early payoff — checking loan terms before assuming extra payments are penalty-free avoids an unpleasant surprise.
  • A shorter loan term raises the monthly payment but usually lowers total interest paid. As with any fixed-rate installment loan, choosing between a shorter, higher-payment term and a longer, lower-payment term is a real tradeoff between monthly affordability and total cost — worth comparing both directly with the Compare Calculations feature above.

Common Mistakes

  • Assuming a low advertised rate applies to everyone. Unsecured personal loan rates commonly span 6-36%, with the lowest rates generally reserved for borrowers with excellent credit — the rate you’re actually offered may be well above a lender’s advertised “starting at” figure.
  • Confusing the interest rate with the APR. The rate used here drives the monthly payment, but a real loan offer’s APR (which folds in origination fees and other upfront costs) is usually higher and is the more accurate number for comparing two competing loan offers.
  • Not checking a secured alternative first. If you own your home, a home equity loan or HELOC often carries a lower rate for the same purpose — the tradeoff is putting the home up as collateral, which a personal loan doesn’t require.

Useful to Know

  • Want to compare this offer’s true annual cost, including fees, against another loan? Annual Percentage Rate (APR) Calculator folds origination fees and other upfront costs into a single comparable rate.
  • Own your home and want to see whether a secured alternative comes out cheaper? Home Equity / HELOC Calculator estimates a home equity loan or HELOC’s payment against the same amount.
  • Consolidating multiple existing debts and want to compare payoff strategies side by side? Debt Payoff Calculator compares the avalanche and snowball methods across several debts at once.

Source: CFPB: How Loan Amortization Works.

Frequently Asked Questions

What is a personal loan used for?

Personal loans are commonly used for debt consolidation, home improvement projects, medical bills, or a major purchase — unlike an auto loan or mortgage, a personal loan generally has no restriction on how the money is spent.

Why are personal loan rates often higher than a mortgage or auto loan rate?

Most personal loans are unsecured, meaning there's no collateral (like a house or car) backing the loan for the lender to repossess if you stop paying — that extra risk to the lender is typically reflected in a higher interest rate than a secured loan of the same amount.

How is this different from the general Loan Calculator?

The underlying fixed-rate amortization math is identical — this page is scoped specifically to unsecured personal loans, with an analysis that compares your entered rate against the typical 6-36% range those loans commonly fall in, and recommendations aimed at that specific use case.

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