Loan Calculator: Find Your Monthly Payment in Seconds
How to Use This Loan Calculator
Our free loan calculator helps you figure out exactly what a loan will cost before you sign anything. Enter your loan amount, interest rate, and repayment period to see your monthly payment, total interest charges, and a full amortization schedule.
You can adjust the payback type between annuity (fixed monthly payments) and straight amortization (decreasing payments). The calculator also lets you factor in monthly fees and origination costs so you get the full picture.
Whether you're shopping for a personal loan, a car loan, or a mortgage, this tool gives you a clear breakdown of what you'll actually pay over the life of the loan. Use it as a simple loan calculator for quick estimates, or as a detailed personal loan calculator with fees and amortization included.
Tip
You can compare loan rates for free with Financer.
What Affects Your Loan Payment?
Four main factors determine what your monthly loan payment will look like:
- Loan amount: The total you borrow. A bigger loan means higher payments.
- Interest rate: This is the annual cost of borrowing, expressed as a percentage. As of March 2026, average personal loan rates sit around 12.26% APR, while auto loans average about 6.93% and 30-year fixed mortgages hover near 6%.
- Loan term: How long you have to repay. Stretching the term lowers your monthly payment but increases total interest paid.
- Fees: Origination fees (typically 1% to 8% of the loan amount) and monthly service charges add to your total cost.
Your credit score has a major impact on the rate you'll qualify for. Borrowers with excellent credit (740+) typically get rates several percentage points lower than those with fair or poor credit.
Loan Payment Calculator Example
Here's a quick example to show how the numbers work. Say you borrow $10,000 at 8% interest for 3 years with annuity (fixed) payments:
- Monthly payment: About $313
- Total interest paid: About $1,282
- Total cost of loan: $11,282
Now change just the term to 5 years, keeping everything else the same:
- Monthly payment: About $203
- Total interest paid: About $2,166
- Total cost of loan: $12,166
The monthly payment drops by $110, but you pay nearly $900 more in interest over the life of the loan. This is the core tradeoff every borrower needs to understand, and our loan payment calculator lets you test these scenarios instantly.
Annuity vs. Straight Amortization
Our calculator offers two payback types, and the difference matters:
Annuity (fixed payments): You pay the same amount every month. Early payments are mostly interest, and later payments are mostly principal. This is the standard for most personal loans and mortgages in the U.S.
Straight amortization (decreasing payments): You pay the same amount of principal each month, plus interest on the remaining balance. Your first payment is the highest, and payments gradually shrink over time. You'll pay less total interest this way, but your early payments will be larger.
For most borrowers, annuity payments are easier to budget around since the amount stays constant. But if you can handle higher initial payments, straight amortization saves money on interest.
Average Loan Interest Rates in 2026
Interest rates vary widely by loan type and your credit profile. Here's what borrowers are seeing right now:
- Personal loans: 8% to 36% APR, with an average around 12.26% for borrowers with a 700 FICO score
- Auto loans (new): 4.66% to 16% APR depending on credit tier, with the national average at 6.93%
- Auto loans (used): Average around 11.75% APR
- Mortgages (30-year fixed): Averaging about 6% APR as of March 2026
- Student loans (federal): Fixed rates set annually by Congress
Credit unions tend to offer lower rates than online lenders and banks. The average credit union personal loan rate is 10.72% compared to 12.06% at commercial banks.
Plug your specific rate into the calculator above to see exactly what your payments would be.
How to Lower Your Loan Costs
A few moves can save you hundreds or even thousands on a loan:
- Improve your credit score before applying. Even a 50-point increase can drop your APR by 1 to 3 percentage points. Pay down credit card balances and dispute any errors on your report.
- Shop around. Rates vary significantly between lenders. Get quotes from at least three sources, including banks, credit unions, and online lenders.
- Choose a shorter term. A 3-year loan costs much less in total interest than a 5-year loan, even though monthly payments are higher.
- Watch the fees. Some lenders charge no origination fee while others charge up to 8%. A low rate with a high fee can end up costing more than a slightly higher rate with no fee.
- Consider autopay discounts. Many lenders offer a 0.25% to 0.50% rate discount when you set up automatic payments.
Use the loan payoff calculator above to compare different scenarios side by side.
Types of Loans You Can Calculate
This loan calculator works for any fixed-rate loan with regular payments. Here are the most common types:
Personal loans are unsecured loans you can use for almost anything, from debt consolidation to home improvements. Typical amounts range from $1,000 to $50,000 with terms of 2 to 7 years.
Auto loans are secured by the vehicle you're buying. Terms usually run 36 to 72 months. Longer terms are available but come with higher rates and the risk of going underwater on the loan.
Mortgages are the largest loans most people will ever take. Terms are typically 15 or 30 years. Even small rate differences matter enormously here because of the large principal and long timeframe.
Student loans cover education costs. Federal student loans have fixed rates, while private student loans may have variable rates.
Small business loans fund business operations, equipment, or expansion. Terms and rates vary widely by lender and loan type.
Understanding Your Amortization Schedule
The breakdown tab in our calculator shows your full amortization schedule, which is a payment-by-payment table of how your loan balance decreases over time.
Each row shows the date, how much of your payment goes to principal (amortization), how much goes to interest and fees, the total payment, and the remaining debt.
With annuity loans, you'll notice that early payments are interest-heavy. On a $10,000 personal loan at 12% over 3 years, your first payment might put only $233 toward principal while $100 goes to interest. By the final payment, almost the entire amount goes to principal.
This is useful for planning because it shows you exactly when you'll hit certain milestones, like owing less than half the original amount, or when a lump-sum extra payment would save you the most interest.
Frequently Asked Questions
How do you calculate a loan payment?
The standard formula for a fixed (annuity) loan payment is: M = P[r(1+r)^n] / [(1+r)^n - 1], where M is the monthly payment, P is the loan principal, r is the monthly interest rate (annual rate divided by 12), and n is the total number of payments. Our loan calculator handles this math automatically when you enter your loan amount, rate, and term.
What is a good interest rate for a personal loan?
As of 2026, a good personal loan rate is anything below 12% APR. Borrowers with excellent credit (740+) can qualify for rates as low as 6% to 8%. The national average sits around 12.26% for borrowers with a 700 FICO score. Credit unions often offer lower rates than banks and online lenders.
Does using a loan calculator affect my credit score?
No. Using a loan calculator is completely free and has zero impact on your credit score. You're simply running numbers, not applying for credit. Your score is only affected when a lender performs a hard inquiry, which happens during an actual loan application.
Should I choose a shorter or longer loan term?
A shorter term means higher monthly payments but less total interest. A longer term lowers your monthly payment but costs more over time. For example, borrowing $10,000 at 8% for 3 years costs about $1,282 in interest, while the same loan over 5 years costs about $2,166. Choose the shortest term that fits comfortably in your monthly budget.
What is the difference between APR and interest rate?
The interest rate is the base cost of borrowing money. APR (Annual Percentage Rate) includes the interest rate plus additional fees like origination charges, rolled into a single annual percentage. APR gives you a more accurate picture of the total cost. When comparing loan offers, always compare APR to APR rather than just interest rates.