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

Open fuel cost calculator Learn the formula

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.

Primary tool Fuel Cost Calculator Calculate petrol, diesel or electric journey costs, cost per mile and cost per person. Efficiency MPG Calculator Work out miles per gallon, miles per litre and litres per 100km from real fuel use. Ownership Car Depreciation Calculator Estimate how much value a car has lost and how much it may lose in future years. Work travel Commute Cost Calculator Estimate daily, weekly, monthly and annual commuting costs including parking and tolls. Electric cars EV Charging Cost Calculator Calculate charge cost, kWh used, miles added, full-charge cost and cost per mile. Business mileage Mileage Reimbursement Calculator Estimate approved mileage amounts, employer reimbursement and possible mileage relief. Penalty estimate Speeding Fine Calculator Estimate likely speeding fine bands, points and fine ranges using UK guidance. Planning Drive Time Calculator Estimate driving time from distance, average speed, traffic delays and breaks. Related Car Finance Calculator Compare the monthly cost of car finance alongside running and depreciation costs.

How to use this hub

Choose the calculator by the question you need answered

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.

Comparing cars? Use MPG, EV charging and depreciation together. A cheaper fuel cost can still be outweighed by depreciation.

Checking work travel? Use commute cost for regular home-to-work travel and mileage reimbursement for eligible business journeys.

Estimating a penalty? Use the speeding fine calculator as a cautious estimate only. Actual outcomes depend on the case and court discretion.

Thinking about EV running costs? Use EV charging cost for a charge session, then compare against petrol or diesel with the fuel cost calculator.

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.

MPGMiles per gallon, a common UK measure of fuel economy. Pence per mileThe running cost for each mile travelled. Fuel economyHow efficiently a vehicle turns fuel into distance. Approved mileage allowance paymentThe HMRC mileage amount used for business travel claims. Business mileageMileage for qualifying work journeys, not ordinary commuting. Vehicle excise dutyThe official name for car tax or road tax. DepreciationThe value a car loses over time. EV tariffAn electricity tariff designed around cheaper charging periods. kWhA unit of electricity used to measure EV charging and home energy use. Speed awareness courseAn alternative sometimes offered for lower-level speeding offences.

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.

Start with fuel cost Estimate depreciation

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.