UK Car Finance Calculator
Use this calculator to estimate monthly repayments for a UK car finance deal (HP-style loan with optional PCP balloon payment).
What is a “car mortgage calculator” in the UK?
In the UK, people often search for a car mortgage calculator, but technically most lenders call it car finance or a car loan. A mortgage is normally tied to property, while cars are usually financed through Hire Purchase (HP), Personal Contract Purchase (PCP), or a personal loan.
This page gives you a practical calculator so you can estimate your monthly payment before speaking to a dealer or lender. It can also help you compare offers and understand whether an advertised “low monthly payment” is actually good value.
How this calculator works
The calculator uses these key inputs:
- Car price: The vehicle purchase price.
- Deposit + trade-in: Amount paid upfront or value used to reduce borrowing.
- APR: Annual Percentage Rate, including interest and standard charges.
- Term: Number of months over which you repay.
- Balloon payment: Optional large final payment, common in PCP agreements.
- Arrangement fee: Fee added to the financed amount.
It then estimates your monthly repayment and shows total payable and interest. If you set balloon payment to £0, the result behaves like a normal repayment loan (similar to HP). If you enter a balloon amount, your monthly payments drop, but your final payment and total cost may increase.
HP vs PCP vs Personal Loan (quick UK comparison)
Hire Purchase (HP)
- No large final payment (usually).
- Higher monthly payment than PCP for the same car.
- You own the car at the end after all payments are made.
Personal Contract Purchase (PCP)
- Lower monthly payments because of deferred balloon payment.
- At the end, you can return the car, part-exchange, or pay the balloon to keep it.
- Usually includes mileage and condition rules.
Personal Loan
- You own the car from day one.
- Can be cheaper than dealer finance if your credit profile is strong.
- Terms depend on your lender, income, and credit history.
Tips to reduce your monthly payment
- Increase your deposit: Even a few hundred pounds can cut monthly cost and total interest.
- Improve your credit profile: Better credit can unlock lower APR offers.
- Compare total amount payable, not just monthly: Low monthly deals can hide higher overall cost.
- Shop around: Compare dealer finance, banks, and credit unions.
- Avoid stretching the term too far: Longer terms lower monthly payments but usually increase total interest.
Common UK costs people forget
Car finance is only part of the budget. Also plan for:
- Insurance (often your biggest recurring cost after finance)
- Vehicle Excise Duty (road tax)
- MOT, servicing, and tyres
- Fuel or EV charging
- Parking permits, tolls, and congestion charges
Important: This calculator gives estimates only and does not constitute financial advice. Actual lender quotes may differ due to credit checks, fees, acceptance criteria, and special offer terms.
Example scenario
Suppose your car costs £18,000, you put down £2,000, take a 48-month term at 7.9% APR, and add no balloon payment. You would finance roughly £16,000 (plus any fees). The calculator will estimate your monthly amount and total interest, making it easier to decide whether that deal fits your budget.
Frequently asked questions
Is APR the same as interest rate?
Not exactly. APR includes interest and certain compulsory charges, so it is usually better for comparing deals.
Should I choose a balloon payment?
A balloon can lower monthly payments, but you must be comfortable with your end-of-term options and possible final lump sum.
Can I overpay my car finance in the UK?
Many agreements allow early settlement or overpayments, but check your contract for any fees or restrictions before signing.