Car & Travel

Car & Travel Calculators, Guides & Tools

Work out journey fuel costs, MPG, EV charging, commute costs, mileage claims, speeding fine estimates and driving time with free UK-focused tools.

Fuel costs EV charging Mileage claims Journey planning
Start here

Fuel Cost Calculator

Estimate the petrol, diesel or EV cost of a journey, then see the cost per mile and the amount of fuel or electricity used.

Petrol & diesel EV mode Return trips Cost splitting
Example result £17.67 Estimated cost for a 100-mile petrol journey at 40 MPG and 155.5p per litre. Edit the calculator assumptions before relying on the result.
Calculators

Car and travel calculators

Use these tools together to move from one journey cost to the wider cost of owning, running and using a car.

How to use this hub

Choose the calculator by the question you need answered

1
Planning a journey? Start with the fuel cost calculator, then use drive time if you need a time estimate as well as a cost estimate.
2
Comparing cars? Use MPG, EV charging and depreciation together. A cheaper fuel cost can still be outweighed by depreciation.
3
Checking work travel? Use commute cost for regular home-to-work travel and mileage reimbursement for eligible business journeys.
4
Estimating a penalty? Use the speeding fine calculator as a cautious estimate only. Actual outcomes depend on the case and court discretion.
5
Thinking about EV running costs? Use EV charging cost for a charge session, then compare against petrol or diesel with the fuel cost calculator.
6
Working out total ownership cost? Combine depreciation, fuel or EV charging, finance, insurance and servicing rather than judging a car on fuel alone.
Guides

Car and travel guides

These supporting guides explain the formulas, assumptions and real-world trade-offs behind the calculators.

Fuel costs How to Calculate Fuel Cost for a Journey Learn the MPG, litre and pence-per-mile formula used by the journey fuel cost calculator. Comparison Petrol vs Diesel vs Electric: Which Is Cheapest Per Mile? Compare fuel, charging, efficiency and ownership cost differences before choosing a vehicle. Running costs How Much Does It Really Cost to Run a Car in the UK? Look beyond fuel and include depreciation, insurance, maintenance, tax, parking and finance. EVs Is an Electric Car Cheaper to Run Than Petrol? Compare home charging, public charging, efficiency, depreciation and regular mileage. Mileage claims What Counts as Business Mileage in the UK? Understand the difference between ordinary commuting and mileage that may qualify for reimbursement.
Glossary

Car and travel glossary terms

Use these plain-English definitions when calculator inputs or guidance notes use motoring, mileage or EV terms.

Work out the real cost before you drive, buy or claim

Fuel is only one part of the picture. Use this hub to compare running costs, commute costs, EV charging, depreciation, mileage claims and journey time before making a decision.

Important

Calculator results are estimates only. Fuel prices, electricity rates, HMRC mileage rules, insurance costs and penalties can change. Always check the latest official guidance before making financial, tax or legal decisions.