Mortgage & Home Financing
- • Monthly repayment calculations in £
- • Deposit impact analysis
- • Interest rate comparison tools
- • Loan term optimization
- • Refinancing break-even analysis
Loan Calculator
Mortgage, loan, investment and compound interest calculators
Complete Financial Planning Calculator Suite
Professional financial planning tools with 10+ calculators for mortgages, investments, retirement, loans, and tax optimization
Personal Loan Repayment Calculator
Estimate personal loan monthly repayments, total interest and term cost — planning only. EMI stays a separate tool.
How to use: Enter the total amount you need to borrow. Add the annual interest rate (APR) your lender quoted - rates vary by lender and your credit record. Enter the loan term in months (common terms are 24, 36, 48, or 60 months). The calculator shows your exact monthly payment and total interest you'll pay. Use this to compare offers from different lenders and choose the best deal.
Car Finance Calculator
Work out car finance repayments and the total cost in £
How to use: Enter the cash price of the car and your deposit (or part-exchange value). A bigger deposit means borrowing less, and can help you avoid owing more than the car is worth. Enter the APR from your finance quote. Choose the term in months - 60 months (5 years) is common, but shorter terms save on interest. This works like hire purchase (HP); for PCP, the final optional payment is not included. Compare different deposits and terms to find what fits your budget.
Professional Financial Planning Tools
Our comprehensive financial calculator suite provides accurate, professional-grade tools for mortgage planning, investment analysis, retirement planning, loan calculations, and tax estimation. All calculations follow established financial formulas and industry best practices.
Investment & Growth Planning
- • Compound interest calculations
- • Portfolio growth projections
- • Monthly contribution planning
- • Risk-adjusted return analysis
- • Regular monthly investing effects
Retirement Planning
- • Workplace pension, SIPP and ISA growth projections
- • Inflation-adjusted pot projection
- • State Pension not included (check GOV.UK)
- • Illustrative growth assumption you can change
- • Pension tax relief basics explained
Loan & Payment Analysis
- • Personal loan payment calculations
- • Auto financing comparisons
- • Loan repayment planning
- • Debt consolidation analysis
- • Early payoff strategies
Tax Planning & Optimization
- • Income tax estimation
- • International tax estimation
- • Allowances and tax band basics
- • Take-home pay planning
- • Tax-efficient investment strategies
Advanced Financial Tools
- • Amortization schedule analysis
- • Inflation impact calculations
- • Present value analysis
- • Future value projections
- • Break-even point analysis
How to Use Financial Calculators Effectively
Accurate Input Data
Use current market rates, actual loan terms, and realistic assumptions. For mortgage calculations, include buildings insurance and any fees. Investment projections should use conservative return estimates based on historical averages.
Professional Consultation
These calculators provide estimates for planning purposes. Always consult with qualified financial advisors, tax professionals, or mortgage specialists for personalized advice and final decision-making on significant financial matters.
Scenario Planning
Test multiple scenarios with different interest rates, terms, and amounts. Consider best-case, worst-case, and most-likely scenarios to make informed financial decisions with proper risk assessment.
Regular Updates
Revisit calculations regularly as market conditions, interest rates, and personal circumstances change. Annual reviews help ensure your financial strategies remain aligned with your goals and market realities.
Financial Planning Made Simple
Whether you're buying your first home, planning for retirement, or comparing loan options, our financial calculators provide the insights you need to make confident financial decisions. All tools are free, require no registration, and deliver professional-grade accuracy.
Loan Calculator — UK Personal Loan Repayments
Free loan calculator: enter the amount, APR and term to see your monthly repayment, total interest and total to repay in £. Instant, no sign-up.
Use this loan calculator to work out the monthly repayment on a personal loan, and how much interest you'll pay in total. Enter the amount you want to borrow in pounds, the interest rate the lender quoted, and the term in months.
It uses the standard repayment (amortisation) formula that lenders use for fixed-rate loans, so you get your monthly repayment, total interest and total to repay straight away. Try different rates and terms to find the balance between a monthly cost you can manage and the total you pay. The rate is treated as a fixed annual rate charged monthly, and fees are not included, so check the figures in your own loan quote.
How a loan repayment is calculated
Loan repayments use the amortisation formula: M = P × [r(1+r)^n] / [(1+r)^n − 1], where M is the monthly repayment, P is the amount borrowed, r is the monthly interest rate (the annual rate divided by 12) and n is the number of monthly repayments. This keeps every repayment the same, even though the split between interest and capital changes each month.
In the early months most of each repayment is interest. As the balance falls, more of each repayment goes towards the capital. This is why paying off extra early, where your lender allows it, saves more interest than paying extra near the end.
Representative APR vs your rate
Loan adverts show a representative APR, which is the rate the lender expects to give to many of the people who apply. It is not a promise, and the rate you are offered depends on the lender's checks, the amount, the term and your credit history.
Once you have a personalised quote, enter that rate here to see your real repayment and total interest. The calculator does not add arrangement fees, so if your loan has them, check the total amount payable on the lender's quote.
Personal loans, car finance and credit cards
Personal loans are usually unsecured, with a fixed rate and fixed monthly repayments over a set term. People use them for things like home improvements, a car or consolidating other debts. Because there is no asset securing the loan, rates are often higher than on secured borrowing.
Car finance (HP or PCP) is often arranged through the dealer; the finance company usually owns the car until you make the final payment. A longer term lowers the monthly repayment but raises the total interest. As an illustration, £25,000 at 6% over 60 months is £483.32 a month and £3,999 in interest. Over 84 months the repayment falls to £365.21 but the interest rises to £5,678. With PCP, check the final optional payment and the mileage limits too.
Credit cards are a revolving form of credit, often at higher rates, and paying only the minimum can keep you in debt for a long time. If you are thinking about consolidating card debt with a loan, compare the total cost of both, and use the debt payoff calculator to see how long the cards would take to clear.
Tips to get a better loan rate
Check your credit report with the UK credit reference agencies before you apply, and correct any mistakes. Paying down existing balances and avoiding lots of applications in a short time can help.
Use eligibility or soft-search checkers where lenders offer them. These show how likely you are to be accepted without leaving a hard search on your credit file. Compare quotes from banks, building societies and online lenders.
Choose the shortest term you can comfortably afford. A shorter loan has higher monthly repayments but much less total interest. If you are borrowing for a home, use the mortgage calculator instead.
How to use this calculator
- Enter the amount you want to borrow in pounds.
- Enter the annual interest rate (APR) from your quote.
- Enter the loan term in months (for example 60 for 5 years).
- Click Calculate to see your monthly repayment, total interest and total to repay.
- Try different rates and terms to find the best fit for your budget.
Worked example: £20,000 personal loan at 9% for 5 years
Monthly repayment: £20,000 × [0.0075 × (1.0075)^60] / [(1.0075)^60 − 1] = £415.17 a month.
Total repaid over 60 months: £24,910.03, so the total interest is £4,910.03, about 25% on top of what you borrowed.
If you stretched the same loan to 7 years (84 months), the repayment would drop to £321.78, but the total interest would rise to £7,029.65. That is about £2,100 more for the same loan.
Frequently asked questions
What is a good interest rate on a personal loan?
Rates depend on the lender, the amount, the term and your credit history. Loan adverts usually show a representative APR, but the rate you are offered can be different. Use the rate in your own quote to see your real repayment.
Should I pay off my loan early?
It can save interest and shorten the loan. Check your loan agreement first, because some lenders charge an early settlement fee. You can ask the lender for a settlement figure.
What is the difference between secured and unsecured loans?
A secured loan, such as a mortgage or some car finance, is backed by an asset the lender can take if you do not repay. This lowers the lender's risk and often the rate. An unsecured personal loan or credit card has no asset behind it, so rates are usually higher.
How does the loan term affect total cost?
A longer term means lower monthly repayments but more total interest. On £20,000 at 9%, 5 years costs £4,910.03 in interest and 7 years costs £7,029.65. Always check the total cost, not just the monthly repayment.