Loan Repayment Calculator
Use this free tool to estimate your monthly payment, total interest, and how much you could save with overpayments.
What this money saving expert loan calculator helps you do
If you are comparing personal loans, this calculator gives you a practical estimate of what borrowing will really cost. It is designed to answer the questions most people ask before applying:
- How much will I pay each month?
- How much interest will I pay over the full term?
- How much could I save by overpaying each month?
- How do fees affect the total cost of borrowing?
Instead of focusing only on a headline rate, you can look at the full repayment picture and choose a loan that fits your budget.
How to use the calculator
1) Enter your loan details
Start with your planned borrowing amount, APR, and term length. Use the fee box if your lender charges an arrangement fee.
2) Add a monthly overpayment (optional)
If you expect to pay extra each month, include that amount. Even small overpayments can significantly reduce total interest and shorten the payoff period.
3) Review the output before committing
Use the calculated monthly repayment and total cost to check affordability. If payments feel tight, try lowering the loan amount, increasing deposit, or choosing a shorter term with lower overall interest.
Example: why numbers matter
Imagine a £10,000 loan at 6.9% APR over 5 years. The monthly repayment might look reasonable, but the total interest over the term can still be substantial. Add a regular overpayment of £50 and you may:
- finish the loan months earlier,
- reduce interest paid, and
- improve your monthly cash flow sooner.
This is exactly why running scenarios is so valuable before signing any credit agreement.
APR vs interest rate: what to focus on
The APR (Annual Percentage Rate) usually gives a better comparison than a simple annual interest rate because it includes certain costs and fees. When shopping around, compare like-for-like:
- same loan amount,
- same loan term,
- same repayment type,
- and equivalent fee structure.
A lower monthly payment does not always mean a cheaper loan overall. Longer terms can reduce monthly pressure but increase total interest.
Ways to save money on a personal loan
Check your credit file first
A stronger credit profile can unlock better APR offers. Correcting errors before applying can improve your chances of approval at a lower rate.
Borrow only what you need
It is tempting to round up “just in case,” but every extra pound borrowed accrues interest.
Use overpayments strategically
If your lender allows penalty-free overpayments, setting up a small automatic extra payment can trim years off long loans.
Avoid unnecessary add-ons
Optional extras and insurance products can increase your total borrowing cost. Read every line before agreeing.
Important checks before you apply
- Early repayment charges: Some lenders charge fees for paying off faster.
- Variable vs fixed rates: Variable rates can rise over time and increase monthly costs.
- Total repayable amount: Always compare this figure, not just monthly cost.
- Missed payment policy: Late fees and credit score impact can be significant.
Frequently asked questions
Is this calculator exact?
It is an estimate tool. Your actual offer may vary based on lender criteria, credit history, and any additional product conditions.
Does overpaying always save money?
Usually yes, if there are no early repayment penalties. Overpaying reduces principal faster, which lowers the interest charged over time.
Should I choose the shortest term possible?
Choose the shortest term you can comfortably afford. Shorter terms often reduce total interest, but affordability and emergency flexibility matter.
Final thought
A smart borrower compares total costs, not just teaser rates. Use this money saving expert loan calculator to test realistic scenarios, stress-test your monthly budget, and borrow with confidence.