Loan Calculator
Calculate your monthly personal loan payment, total interest, fees, and effective APR with this free loan calculator.
How Personal Loans Work
A personal loan provides a lump sum of money that you repay in fixed monthly installments over a predetermined period. Unlike credit cards with revolving balances, a personal loan has a clear payoff date and a consistent payment amount, making it easier to budget. Most personal loans are unsecured, meaning you don't need to pledge collateral like a house or car. This convenience comes at a cost — interest rates tend to be higher than secured loan products.
The Monthly Payment Formula
Your monthly payment is calculated using the standard amortization formula: M = P[r(1+r)^n] / [(1+r)^n - 1], where P is the loan principal, r is the monthly interest rate (annual APR divided by 12), and n is the total number of payments. Each payment is split between interest and principal. Early in the loan, a larger portion goes to interest; as the balance decreases, more goes toward principal. This calculator handles the math automatically so you can focus on comparing scenarios.
Understanding Origination Fees
Many lenders charge an origination fee, typically 1% to 8% of the loan amount, which is deducted from your proceeds before disbursement. For example, if you borrow $15,000 with a 3% origination fee, you receive $14,550 but still owe the full $15,000. This fee effectively raises the true cost of borrowing above the stated APR. The "effective APR" shown in this calculator accounts for this difference, giving you a more accurate picture of what the loan really costs. Always compare loans using total cost or effective APR, not just the headline interest rate.
Tips for Getting the Best Personal Loan
Start by checking your credit report for errors and improving your score if possible — even 20-30 points can meaningfully lower your rate. Compare offers from at least three lenders, including online lenders, credit unions, and your existing bank. Look beyond the interest rate: factor in origination fees, late payment penalties, and prepayment penalties. Choose the shortest term you can comfortably afford to minimize total interest. If you're consolidating debt, make sure the new loan's total cost is actually lower than what you're currently paying. Finally, avoid borrowing more than you need — the origination fee and interest apply to the full amount.
Frequently Asked Questions
What is a personal loan and how does it work?
A personal loan is an unsecured installment loan you can use for almost any purpose — debt consolidation, home improvements, medical bills, or major purchases. You receive a lump sum, then repay it in fixed monthly payments over a set term, typically 12 to 84 months. Because personal loans are unsecured (no collateral), interest rates are generally higher than secured loans like mortgages or auto loans, ranging from about 6% to 36% depending on your credit score and lender.
What is an origination fee and how does it affect my loan?
An origination fee is an upfront charge by the lender to process your loan, typically 1% to 8% of the loan amount. It's usually deducted from your loan proceeds — so if you borrow $10,000 with a 3% origination fee, you'll only receive $9,700 but still owe $10,000. This effectively raises the true cost of borrowing above the stated APR. Not all lenders charge origination fees, so compare the total cost including fees, not just the interest rate.
How does my credit score affect my personal loan rate?
Your credit score is the biggest factor in determining your interest rate. Borrowers with excellent credit (750+) can qualify for rates as low as 6-8%, while those with fair credit (580-669) may see rates of 15-25% or higher. Before applying, check your score and consider improving it if possible — even a small increase can save you hundreds or thousands in interest over the life of the loan.
Should I choose a shorter or longer loan term?
Shorter terms mean higher monthly payments but significantly less total interest paid. For example, a $15,000 loan at 10% costs about $4,000 in interest over 36 months but nearly $7,500 over 60 months. Choose the shortest term you can comfortably afford. If cash flow is tight, a longer term keeps payments manageable, but avoid stretching beyond 60 months as the extra interest adds up quickly.