UK Motoring Calculators

Welcome to your comprehensive resource for various essential UK motoring calculations. Whether you're looking to estimate fuel expenses, compare electric vehicle running costs, understand your car's depreciation, calculate potential loan repayments, check road tax (VED), or convert fuel efficiency metrics, our free online tools are designed to help you make informed decisions about your vehicle ownership and usage.

New! 🚗

We've launched our new Fuel Savings Calculators page – compare fuel costs, trip prices, carbon footprint and more. Try it out!

Miles Kilometers
GBP (£) EUR (€)

Fuel Cost Calculator

Calculate the fuel cost for a journey by entering the distance, your car's fuel efficiency, and the current fuel price.

Distance must be a positive number.

Select a model to auto-fill MPG, or enter manually below.

MPG must be a positive number.

Check your car's official MPG on the UK Government's VCA database.

Fuel price must be a positive number.

Result will appear here...

Yearly Fuel Cost Calculator

Estimate your annual fuel cost based on your daily commute (assumes 260 working days per year).

Distance must be a positive number.

MPG must be a positive number.

Check your car's official MPG on the UK Government's VCA database.

Fuel price must be a positive number.

Result will appear here...

Fuel Efficiency Improvement Calculator

Calculate potential annual savings if your car's fuel efficiency improves.

Distance must be a positive number.

MPG must be a positive number.

Check your car's official MPG on the UK Government's VCA database.

MPG must be a positive number.

Estimate improved MPG based on better driving habits, maintenance, or a more efficient vehicle. Check potential MPG on the UK Government's VCA database.

Fuel price must be a positive number.

Result will appear here...

EV Running Cost Calculator

Estimate the running cost of an electric vehicle.

Distance must be a positive number.

Efficiency must be a positive number.

Default is 4 miles/kWh, typical for UK EVs. Check your EV's efficiency on the UK Government's VCA database.

Electricity cost must be a positive number.

Default electricity cost (34p/kWh) is based on the UK average as of April 2025.

Result will appear here...

Carbon Footprint Calculator

Calculate CO₂ emissions for a journey (approx. 2.31 kg CO₂ per litre of petrol).

Emission factor of 2.31 kg CO₂ per litre is based on UK government data for petrol vehicles.

Distance must be a positive number.

MPG must be a positive number.

Check your car's official MPG on the UK Government's VCA database.

Result will appear here...

Mileage Reimbursement Calculator

Calculate your mileage reimbursement.

Distance must be a positive number.

Rate must be a positive number.

HMRC approved rate is £0.45 per mile for the first 10,000 miles. See HMRC rules.

Result will appear here...

MPG & L/100km Converter

Convert fuel efficiency between Miles Per Gallon (UK MPG) and Litres per 100 Kilometers (L/100km).

MPG must be a positive number.

L/100km must be a positive number.

Conversion Formulas Used:

From MPG to L/100km:
L/100km = (100 * 4.54609) / (MPG * 1.60934)
L/100km ≈ 282.48 / MPG

From L/100km to MPG:
MPG = (100 * 4.54609) / (L/100km * 1.60934)
MPG ≈ 282.48 / L/100km

Note: Uses UK Gallon (4.54609 litres) and standard mile (1.60934 kilometers).

Car Loan/Finance Calculator

Estimate your monthly repayments for a standard car loan, PCP, or HP finance agreement.

Car price must be a positive number.

Deposit must be a non-negative number.

Loan term must be between 1 and 10 years.

Interest rate must be a positive number.

Result will appear here...

This tool provides an estimate for guidance only. Actual figures may vary—check with your lender for an exact quote.

Car Depreciation Calculator

Road Tax (VED) Calculator

Find out the annual Vehicle Excise Duty (VED) for your car based on its registration year and emissions. This calculator uses current 2024-2025 tax rates.

Please select a registration year range.

Annual Road Tax is £0.00

This tool provides an estimate for guidance only. Actual figures may vary. Always check official UK Government VED rates for an exact quote.

UK Vehicle Excise Duty (VED) Tax Bands (2024-2025 Rates)

Cars Registered Before 1 March 2001
Engine Size Annual Rate (12 months)
Not over 1549cc £210
Over 1549cc £345
Cars Registered between 1 March 2001 and 31 March 2017

Annual rates based on CO₂ emissions for a standard 12-month period.

Band CO₂ Emissions (g/km) Annual Rate (12 months)
AUp to 100£0
B101-110£20
C111-120£35
D121-130£160
E131-140£190
F141-150£220
G151-165£255
H166-175£305
I176-185£335
J186-200£385
K201-225£420
L226-255£680
MOver 255£735
Cars Registered from 1 April 2017 onwards

These rates apply from the second year onwards. First year rates differ significantly (see below). Electric vehicles are currently zero-rated.

Fuel Type Annual Rate (12 months) Premium Rate (Cars over £40k, years 2-6)
Petrol, Diesel & Hybrids£190+£410 (£600 total)
Electric (EV)£0£0 (Premium does not apply)
First Year Rates (Cars Registered from 1 April 2017 onwards)

These rates apply only for the car's first year of registration.

CO₂ Emissions (g/km) First Year Rate
0£0
1-50£10
51-75£25
76-90£125
91-100£165
101-110£185
111-130£220
131-150£255
151-170£300
171-190£365
191-225£550
226-255£835
Over 255£2,745
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Disclaimer: Calculator estimates are for informational purposes only. Actual costs may vary.