User-entered estimates with UK imperial MPG. Fuel prices, resale, repairs and annual mileage are not forecast; financing and other unentered costs are excluded.
Petrol Vs Diesel Lifetime Cost Calculator UK
Enter your values below to get the result first, then scroll for the full explanation and guidance.
Petrol has the lower estimated lifetime cost
£249.83 lower10,000 miles a year over 5 years
Petrol has the lower estimated lifetime cost: £249.83 lower (10,000 miles a year over 5 years)
Compare purchase price less expected resale value, plus entered annual fuel and non-fuel costs over the ownership period.
User-entered ownership-cost comparison
Compare purchase price less expected resale value, plus entered annual fuel and non-fuel costs over the ownership period.
Result snapshot
A quick visual read of the values behind this result.
Petrol lifetime cost£25,523.92
Diesel lifetime cost£25,773.74
Petrol annual fuel cost£1,704.78
Diesel annual fuel cost£1,454.75
Recommended next checks
- →Test lower resale values and higher fuel prices before deciding.
- →Compare finance, insurance, tax, repairs and clean-air charges separately where they differ.
- Petrol lifetime cost
- £25,523.92
- Diesel lifetime cost
- £25,773.74
- Petrol annual fuel cost
- £1,704.78
- Diesel annual fuel cost
- £1,454.75
Uses UK imperial MPG and 4.54609 litres per imperial gallon. It is an estimate, not a forecast of fuel prices, depreciation, repairs or vehicle reliability.
Try different values to compare results.
Compare estimated petrol and diesel car ownership costs using your purchase, resale, mileage, UK MPG and running-cost figures.
Petrol has the lower estimated lifetime cost
£249.83 lower10,000 miles a year over 5 years
Petrol has the lower estimated lifetime cost: £249.83 lower (10,000 miles a year over 5 years)
Compare purchase price less expected resale value, plus entered annual fuel and non-fuel costs over the ownership period.
User-entered ownership-cost comparison
Compare purchase price less expected resale value, plus entered annual fuel and non-fuel costs over the ownership period.
Result snapshot
A quick visual read of the values behind this result.
Petrol lifetime cost£25,523.92
Diesel lifetime cost£25,773.74
Petrol annual fuel cost£1,704.78
Diesel annual fuel cost£1,454.75
Recommended next checks
- →Test lower resale values and higher fuel prices before deciding.
- →Compare finance, insurance, tax, repairs and clean-air charges separately where they differ.
- Petrol lifetime cost
- £25,523.92
- Diesel lifetime cost
- £25,773.74
- Petrol annual fuel cost
- £1,704.78
- Diesel annual fuel cost
- £1,454.75
Uses UK imperial MPG and 4.54609 litres per imperial gallon. It is an estimate, not a forecast of fuel prices, depreciation, repairs or vehicle reliability.
Try different values to compare results.
Table of Contents
Table of Contents
About Petrol Vs Diesel Lifetime Cost Calculator UK
Petrol Vs Diesel Lifetime Cost Calculator UK helps you work through the main numbers for this topic quickly with a simple input flow and an instant result.
Use the calculator result as a practical starting point, then review the explanation and assumptions on the page if you want more context.
Calculation method
Lifetime cost = purchase price - expected resale value + years x (annual miles x 4.54609 / UK MPG x price per litre + other annual costs).
User-entered estimates with UK imperial MPG. Fuel prices, resale, repairs and annual mileage are not forecast; financing and other unentered costs are excluded.
Formula explained
Calculation flow
This calculator is structured for fast UK-focused estimates with clear inputs, repeatable logic, and instant results.
Formula
Input values -> calculation engine -> instant result
How the result is built
1Enter the values requested in the form.
2The calculator applies the configured formula logic.
3The result updates instantly with a breakdown.
4Use the output to compare scenarios quickly.
Example
Example calculated from the inputs and method shown below.
Assumptions
- User-entered estimates with UK imperial MPG. Fuel prices, resale, repairs and annual mileage are not forecast; financing and other unentered costs are excluded.
Source basis
- UK-focused calculator flow
- Structured input validation
- Instant result breakdowns
FAQ
Common questions
Trust and notes
Assumptions and important notes
This calculator is designed to give a fast estimate using the method shown on the page. Results are most useful when your inputs are accurate and the tool matches your situation.
Use the result as guidance rather than a final diagnosis or professional decision. If the result could affect health, legal, financial, or compliance decisions, verify it with a qualified source where appropriate.
- User-entered estimates with UK imperial MPG. Fuel prices, resale, repairs and annual mileage are not forecast; financing and other unentered costs are excluded.
Method
UK calculator guidance
Last reviewed
April 17, 2026