Personal Loan Calculator
This free online tool helps you estimate the monthly payments and total interest for a personal loan. It's useful for anyone considering borrowing money and wanting to understand the costs involved before applying.
Disclaimer: This tool is for educational and informational purposes only and does not constitute financial, tax, or investment advice. Please consult a qualified financial advisor or CPA before making financial decisions.
Loan Details
Monthly Payment
$235
for 24 months
Principal
$5,000
Total Interest
$649
Total Cost
$5,649
What Is the Personal Loan Calculator?
A personal loan is one of the most flexible borrowing tools available. Unlike a mortgage or a car loan, it is not tied to a specific asset, which means you can use it for almost any purpose: consolidating high-interest debt, covering a large unexpected expense, funding home improvements, or spreading the cost of a significant purchase over time. The personal loan calculator helps you figure out the monthly repayment and total cost of any amount you are considering borrowing, so you can work out whether the commitment fits your budget before you apply.
The Consumer Financial Protection Bureau's personal loans resource is a useful starting point for understanding how these products work, what to look for in an offer, and how to compare lenders fairly.
How to Use the Calculator
- Enter the amount you want to borrow.
- Input the annual interest rate or APR from the lender's offer.
- Set the loan term in months.
- The calculator shows your fixed monthly payment, total repayment, and total interest over the life of the loan.
- Compare different amounts or terms to find a combination that works for your monthly budget and your total cost tolerance.
If you are considering a secured loan or a mortgage alongside a personal loan, our Loan Calculator and Mortgage Calculator cover those scenarios in more detail.
How Monthly Payments Are Calculated
Personal loans are almost always structured as amortising loans, meaning the monthly payment is fixed and each instalment covers both interest and a portion of the principal. The formula is:
Monthly Payment = P × [r(1 + r)^n] / [(1 + r)^n - 1]
Where P is the loan principal, r is the monthly interest rate (annual rate divided by 12), and n is the number of monthly payments. As a result, you pay the same amount each month, but the proportion of each payment that goes toward reducing the principal increases over time as the balance falls.
| Loan Amount | APR | Term | Monthly Payment | Total Interest |
|---|---|---|---|---|
| $5,000 | 9% | 24 months | $228.43 | $482.32 |
| $15,000 | 12% | 48 months | $395.01 | $3,960.48 |
| $25,000 | 7% | 60 months | $495.03 | $4,701.80 |
Key Considerations Before Applying
The interest rate you are offered depends heavily on your credit score, income, existing debt levels, and the lender's own criteria. Rates on personal loans can range from under 6% for borrowers with excellent credit to 30% or more for those with poor credit histories. Given that, it is worth checking your credit score before applying and getting pre-approval quotes from at least two or three lenders to compare. Pre-approval typically involves a soft credit check that does not affect your score.
On top of the interest rate, watch for origination fees. Some lenders charge a percentage of the loan amount upfront, typically 1 to 8%, which is deducted from the funds you receive or added to the loan balance. The APR includes these fees, which is why it is always the right figure to compare rather than the headline rate.
Loan term affects both affordability and total cost. A longer term lowers the monthly payment but increases total interest. In line with that, it is worth choosing the shortest term you can manage rather than the one that produces the most comfortable monthly payment, unless the difference is needed to keep the loan affordable.
When a Personal Loan Makes Sense
Personal loans are particularly well suited to debt consolidation. If you are carrying several high-interest credit card balances, combining them into a single personal loan at a lower rate can reduce both your monthly outgoing and your total interest bill. That said, this only pays off if you do not run the credit cards back up again after consolidating, which is a common pitfall.
For home improvements, a personal loan is often faster to arrange than a home equity loan or line of credit, though the rates are typically higher. With that in mind, if you have significant equity in your home and are not in a hurry, exploring secured borrowing options alongside a personal loan is a reasonable step.
What to Do With Your Result
Once you have a monthly payment figure, set it against your budget to confirm it is genuinely sustainable. A useful check is to make sure your total monthly debt payments, including this loan, stay below 20 to 25% of your take-home pay. If the payment looks workable, the next step is to look into specific lenders, compare APRs, and check whether any origination fees affect the headline rate comparison.
Conclusion
The personal loan calculator makes it straightforward to understand what you are committing to before you apply. By taking a few minutes to try different loan amounts and terms, you can put aside any uncertainty about monthly affordability and go into the application process with a clear sense of what a good deal looks like for your situation.
S. Siddiqui
Founder & Editor-in-Chief, YourToolsBase
Why debt consolidation only made sense once I had run the actual numbers
By late 2024 I had built up £6,400 across three credit cards, carrying rates of 19.9%, 22.5% and 24.9% APR respectively. A consolidation loan was being marketed to me heavily at 12.9% APR over 36 months. On the surface, moving high-rate card debt to a 12.9% loan sounded like a straightforward win. Before I did anything, I worked through the numbers in this calculator. The loan came back at £215 per month and a total repayment of £7,740, meaning I would pay £1,340 in interest over three years.
The arrangement fee was £195, which took the real cost to £1,535. I then figured out what I was currently paying across the three cards: roughly £148 per month in interest alone on minimum payments, meaning the cards would take over five years to clear and cost approximately £2,900 in total interest if I stayed on the minimum payment path. With that in mind, the consolidation loan genuinely came out ahead: £1,535 all-in versus £2,900 if I paid minimums, a saving of £1,365. On top of that, one fixed monthly payment instead of three was far easier to manage.
That said, I was careful to close two of the three cards immediately after consolidating, which the CFPB advises as a way to avoid the common trap of running balances back up. The calculator did not just confirm that the loan was cheaper; it gave me the exact figure I needed to justify the decision to myself rather than acting on a vague sense that it was probably fine.
Frequently Asked Questions
What credit score do I need for a personal loan?
How does an origination fee affect my loan?
Can I use a personal loan to consolidate debt?
What is the difference between a secured and unsecured personal loan?
How long does it take to receive personal loan funds?
∑ Formula
Rate This Tool
Was this tool helpful?
Be the first to rate this tool
💡 Pro Tip
Always compare APR (Annual Percentage Rate), not just the interest rate. APR includes fees and gives the true cost of borrowing.
About the Author
S. Siddiqui is the founder and editor-in-chief of YourToolsBase, overseeing all content, tool accuracy, and editorial standards.
View full profileRelated Tools
Authoritative Sources
Formulas and data in this tool are based on guidelines from the above sources.