Calculate Personal Loan Payments, Interest & Total Repayment
This free personal loan calculator estimates your monthly payment, total interest, total repayment amount, origination fee and estimated debt-to-income ratio. Enter your loan amount, APR, loan term and optional income details to calculate what the loan could cost before you apply. No signup, no credit check and no lender application are required.
Calculate your estimated personal loan payment, total interest, origination fee and repayment cost before applying.
- This calculator estimates your monthly payment, total interest, and total repayment cost based on the amount, APR, and term you enter
- APR — not the interest rate alone — determines your true loan cost
- A longer term lowers your monthly payment but increases total interest paid
- An origination fee reduces the cash you actually receive, not what you owe
- Results here are estimates; a lender's actual disclosure controls the final terms
Free Personal Loan Payment Calculator
Enter the amount you want to borrow, estimated APR, repayment term and optional origination fee. The calculator estimates your fixed monthly payment, total interest and total repayment cost. If you add your gross monthly income and existing debt payments, it also estimates your debt-to-income ratio after the new loan.
For estimation purposes, this calculator treats the entered APR as the annual borrowing rate divided by 12 to calculate monthly interest. Actual lender calculations may differ depending on interest methodology, fees and loan terms. *This calculator is for educational estimates only. Actual APR, fees, approval, and terms vary by lender, credit profile, income, and state regulations.*
What Each Personal Loan Calculator Result Means
Each result answers a different cost or affordability question:
- Monthly Payment — roughly what you'd pay each month based on the amount, APR, and term entered
- Total Interest — the total interest cost over the full loan term
- Total Repayment — principal plus interest, before accounting for any lender-specific fee structure
- Origination Fee — how much a fee could reduce the cash you actually receive
- Cash Received After Fee — the estimated amount available if the origination fee is deducted from the loan proceeds
- Payment-to-Income — your estimated payment as a share of your gross monthly income
- Estimated DTI — your total monthly debt obligations, including this loan, as a share of income
How the Calculator Works
The calculator uses a standard loan amortization formula to estimate a fixed monthly payment:
Payment ≈ P × r × (1+r)ⁿ ÷ ((1+r)ⁿ − 1)
Where P is the loan principal, r is the monthly interest rate, and n is the number of monthly payments. This is the same math used for most fixed-rate installment loans — it's provided here for transparency, not as a math lesson.
How the APR You Enter Changes Your Loan Estimate
The APR you enter has a direct effect on the estimated monthly payment and total interest. Public benchmarks can provide context, but they do not predict the APR you will receive. Use the explorer below only as a reference point, then compare your result with the lender's official disclosure.
Data as reported on September 21, 2026, from the Federal Reserve's G.19 Consumer Credit release published September 8, 2026. Figures are simple averages of banks' most common APRs from the Fed's May 2026 survey (labeled Q2 2026), not an offer, a forecast or a recommendation. Educational purposes only.
How to Read Your Personal Loan Calculator Results
Tap each step as you go.
APR vs. Interest Rate
APR, or Annual Percentage Rate, is generally more useful than the stated interest rate when comparing loan offers because it can reflect the interest rate together with certain finance charges. The exact calculation depends on the lender and applicable disclosure rules. A loan with a lower monthly payment can still cost more overall if the repayment term is longer. An origination fee may also reduce the cash you receive while you remain responsible for repaying the full principal amount.
Only part of the price you pay.
- The price of borrowing the loan principal
- Doesn't reflect lender fees
- Weaker on its own for comparing offers
Built for comparing offers side by side.
- Can include the interest rate plus certain lender fees
- Generally more reliable for comparing offers
- Methodology can vary by lender
💸 What a Higher APR Costs on the Same Loan
To see how APR changes the calculation, compare the same $20,000 loan over 36 months at two different rates. Switch between monthly payment, total interest and total repayment to see how the difference accumulates.
Illustrative example only: a $20,000 loan over 36 months with no origination fee. The 11.86% figure is the average of banks' most common 24-month personal loan APRs in the Fed's May 2026 survey (G.19, published September 8, 2026); 18% is the example APR used in this article. Data as reported September 21, 2026. Not a lender quote or a prediction.
Visual: What Really Goes Into Your Loan Cost
This original illustration is based on the themes discussed in this article and is for educational purposes only.
Illustrative graphic created for Smart Travel Finance. Not affiliated with any lender, bank, or government agency.
Loan Term and Total Interest
A shorter term usually means a higher monthly payment but potentially lower total interest. A longer term usually means a lower monthly payment but potentially higher total interest.
All other loan terms held equal.
- Usually a higher monthly payment
- Potentially lower total interest
- Fewer monthly payments to make
All other loan terms held equal.
- Usually a lower monthly payment
- Potentially higher total interest
- More monthly payments to make
Here's the same $20,000 loan at different terms and APRs:
| Loan Term | Monthly Payment | Total Interest |
|---|---|---|
| $20,000 · 18% APR · 36 months | ≈ $723 | ≈ $6,030 |
| $20,000 · 18% APR · 60 months | ≈ $508 | ≈ $10,472 |
| $20,000 · 24% APR · 60 months | ≈ $575 | ≈ $14,522 |
These are illustrative estimates, not offers. Notice how the "cheaper-looking" $508 payment actually costs over $4,400 more in total interest than the $723 payment — this is the exact comparison the calculator above does automatically for your own numbers.
Before You Trust the Calculator Result
A calculator is an estimate. It's built on the amount, APR, term, and fee you enter — not on a specific lender's underwriting or fee structure. Before making a decision, compare this estimate against the lender's actual, official loan disclosure. If the numbers differ significantly, the disclosure controls, not this tool.
California Personal Loan Calculator Considerations
California has one of the highest costs of living in the country, which makes reviewing your real numbers here especially useful before applying. A few things worth checking specifically as a California borrower:
Tap each item as you confirm it.
Use Your Estimate Before Reviewing a Loan Offer
Use the calculator result as a reference when reviewing an actual loan offer. Compare the quoted APR, monthly payment, repayment term, origination fee, amount disbursed and total repayment amount. If the lender's disclosure differs from the estimate, use the official disclosure for the final decision.
If you are considering a personal loan for a large purchase or travel expense, calculate the monthly payment and total repayment first. Then compare the borrowing cost with the amount you actually need and the repayment period you can reasonably manage.
Next Steps
- Compare loan offers by APR, fees and total cost once you have your estimate
- Calculate your debt-to-income ratio to check overall affordability
- Review the lender's official disclosure before accepting any offer, including APR, fees, repayment term and total repayment amount
Frequently Asked Questions
This calculator estimates a fixed monthly payment, total interest, total repayment amount, origination fee impact and, when income details are entered, an estimated debt-to-income ratio. It does not provide loan approval or a lender quote.
It uses your loan amount, APR, and term to estimate your monthly payment and total interest using standard amortization math — the same math most fixed-rate installment loans follow.
The calculator divides your APR by 12 to get a monthly rate, then applies a standard amortization formula across your chosen loan term to estimate a fixed monthly payment.
Yes. A higher APR increases both your estimated monthly payment and your total interest cost, even if the loan amount and term stay the same.
Typically, yes. A longer term usually lowers your monthly payment but increases the total interest paid, as shown in the term comparison above.
An origination fee is typically deducted from the loan proceeds, so you receive less cash upfront while still repaying the full loan amount.
No. This tool does not access your credit file, does not perform a hard inquiry, and does not affect your credit score in any way.
No. The calculator provides an estimate based on the information entered. It does not check lender eligibility, guarantee approval or generate an official offer. Actual terms depend on the lender, credit profile, income, debt-to-income ratio, fees and applicable regulations.
Did You Catch the Key Numbers?
Answer 6 quick questions based on the article above. This is a reflection tool to check your own understanding, not a rating of any lender.
This tool reflects your own understanding back to you for educational purposes only. It does not represent any lender, bank, or government agency.
