Calculator directory
Fuel, EV and car-cost calculators
Browse practical UK tools for fuel use, EV charging, car finance and ownership planning.
Most useful calculators
- Petrol Calculator
Estimate journey fuel required and cost.
- MPG Calculator
Calculate your real-world UK fuel economy.
- Fuel Cost Calculator UK
Estimate petrol or diesel fuel needed and journey cost.
- Annual Fuel Cost Calculator
Estimate annual fuel spending from mileage, UK MPG and fuel price.
- EV Charging Cost Calculator
Estimate the cost of an EV charging session.
- EV Cost Per Mile Calculator
Estimate an EV electricity cost per mile.
- Car Running Cost Calculator
Estimate annual fuel and recurring car running costs.
- Car Loan Calculator
Estimate standard car-loan monthly payments and interest.
- PCP Car Finance Calculator
Estimate PCP monthly payments and total customer payable.
- Car Affordability Calculator
Estimate a car-price ceiling from a payment budget and deposit.
- Car Total Cost of Ownership Calculator
Estimate depreciation plus recurring costs over ownership.
- Petrol vs Diesel vs EV Total Cost of Ownership Calculator
Compare entered ownership costs for petrol, diesel and EV vehicles.
Fuel & Motoring · 48 calculators
Fuel cost & journeys
- Petrol Calculator
Estimate journey fuel required and cost.
- How Much Diesel Will I Use?
Estimate diesel quantity required for a journey.
- Petrol to Mileage Calculator
Estimate range from an editable petrol budget.
- Fuel Cost Calculator UK
Estimate petrol or diesel fuel needed and journey cost.
- How Much Petrol Should I Put In My Car?
Estimate petrol required for a journey.
- How Much Petrol for 100 Miles?
Estimate petrol needed for 100 miles or an editable journey.
- How Much Petrol for 100 km?
Estimate petrol needed for 100 km or an editable journey.
- How Much Petrol Is Left in My Car?
Estimate remaining petrol from dashboard range and UK MPG.
- Litres to Miles Calculator
Estimate driving range from litres and UK MPG.
- Petrol Cost Per Mile
Calculate petrol cost per mile.
- Diesel Cost Per Mile
Calculate diesel cost per mile.
- Pence Per Mile Calculator
Calculate fuel or EV electricity cost per mile.
- Full Tank Cost Calculator
Estimate the cost to fill your tank from its current fuel level.
- Annual Fuel Cost Calculator
Estimate annual fuel spending from mileage, UK MPG and fuel price.
- Monthly Fuel Cost Calculator
Estimate monthly fuel spending from mileage, UK MPG and fuel price.
- Commute Fuel Cost Calculator
Estimate the fuel cost of commuting to and from work.
- Commute Cost Calculator
Estimate annual commute cash cost including fuel and direct daily charges.
- Fuel Cost Split Calculator
Split a journey fuel cost fairly between people.
- Fuel Cost per 100 Miles
Calculate fuel cost and litres used for 100 miles.
- Fuel Cost per 100 km
Calculate fuel cost and litres used for 100 km.
- Miles per £1 Petrol Calculator
Estimate petrol range from a £1 fuel budget.
- Miles per £1 Diesel Calculator
Estimate diesel range from a £1 fuel budget.
MPG & efficiency
- MPG Calculator
Calculate your real-world UK fuel economy.
- How Many Miles Per Litre of Petrol?
Convert UK MPG to miles per litre.
- Petrol Consumption Calculator UK
Estimate fuel required for a journey.
Fixed-budget & range
- How Many Miles Will £5 of Petrol Get Me?
Estimate the range from £5 of petrol.
- How Many Miles Will £10 of Petrol Get Me?
Estimate the range from £10 of petrol.
- How Many Miles Will £15 of Petrol Get Me?
Estimate the range from £15 of petrol.
- How Many Miles Will £20 of Petrol Get Me?
Estimate the range from £20 of petrol.
- How Many Miles Will £25 of Petrol Get Me?
Estimate range from £25 of petrol.
- How Many Miles for £5 of Diesel?
Estimate range from £5 of diesel.
- How Many Miles for £10 of Diesel?
Estimate range from £10 of diesel.
- How Many Miles for £15 of Diesel?
Estimate range from £15 of diesel.
- How Many Miles for £20 of Diesel?
Estimate range from £20 of diesel.
- How Many Miles Will 5 Litres of Petrol Get Me?
Estimate range from 5 litres of petrol.
- How Far Will 10 Litres of Petrol Go?
Estimate range from 10 litres of petrol.
- Tank Range Calculator
Estimate full-tank range from usable litres and UK MPG.
- Fuel Stops Calculator
Estimate refuelling stops needed for a journey.
Fuel savings & comparisons
- Petrol vs Diesel Calculator
Compare entered petrol and diesel costs for the same journey.
- EV Cost Per Mile Calculator
Estimate an EV electricity cost per mile.
- EV vs Petrol Cost Per Mile
Compare entered EV electricity and petrol costs.
- EV vs Diesel Cost Per Mile
Compare entered EV electricity and diesel costs.
- EV vs Petrol vs Diesel Cost
Compare entered EV, petrol and diesel running costs.
- MPG Improvement Savings Calculator
Estimate annual savings from better UK fuel economy.
- Fuel Savings Comparison Calculator
Compare two annual fuel-efficiency and fuel-price scenarios.
- Fuel Price Break-even Calculator
Check whether cheaper fuel is worth the extra driving distance.
- Fuel Price Change Calculator
Compare the annual cost of an old and new fuel price.
- Petrol vs Diesel Break-even Calculator
Estimate fuel-only mileage needed for diesel to recover a higher purchase price.
Converters · 18 calculators
- UK MPG to US MPG Converter
Convert UK MPG and US MPG.
- MPG to Miles Per Litre Converter
Convert UK MPG and miles per litre.
- MPG to L/100km Converter
Convert UK MPG and litres per 100km.
- 35 MPG to L/100km Converter
Convert 35 UK MPG to litres per 100km.
- 40 MPG to L/100km Converter
Convert 40 UK MPG to litres per 100km.
- 45 MPG to L/100km Converter
Convert 45 UK MPG to litres per 100km.
- 50 MPG to L/100km Converter
Convert 50 UK MPG to litres per 100km.
- US MPG to L/100km Converter
Convert US MPG and litres per 100km.
- US MPG to UK MPG Converter
Convert US and UK MPG accurately.
- Litres to UK Gallons Converter
Convert litres and UK imperial gallons.
- MPG to km/L Converter
Convert UK MPG and kilometres per litre.
- MPG to Kilometres Per Gallon Converter
Convert UK MPG and kilometres per UK gallon.
- L/100km to UK MPG Calculator
Convert litres per 100km to UK / imperial MPG.
- L/100km to US MPG Calculator
Convert litres per 100km to US MPG.
- km/L to UK MPG Calculator
Convert kilometres per litre to UK / imperial MPG.
- Miles Per Litre to UK MPG Calculator
Convert miles per litre to UK / imperial MPG.
- Miles and Litres to MPG Calculator
Calculate UK MPG directly from miles driven and litres used.
- Kilometres and Litres to MPG Calculator
Calculate UK MPG directly from kilometres driven and litres used.
EV · 15 calculators
- EV Charging Mix Cost Calculator
Estimate EV charging cost from entered home and public charging shares.
- EV Charger Payback Calculator
Estimate when a home charger recovers its installed cost.
- EV Charging Membership Break-even Calculator
Find public charging usage where membership beats PAYG.
- EV Range Calculator
Estimate EV range from usable battery capacity and efficiency.
- EV Charging Cost Calculator
Estimate the cost of an EV charging session.
- EV Charging Time Calculator
Estimate idealised EV charging time from charger power.
- Home vs Public EV Charging Cost
Compare the same EV charge at home and public rates.
- Annual EV Charging Cost Calculator
Estimate annual EV electricity cost from mileage and efficiency.
- EV Journey Cost Calculator
Estimate EV journey electricity use and charging cost.
- EV Miles per kWh Calculator
Calculate EV efficiency from measured miles and energy.
- kWh per 100 Miles Calculator
Convert EV efficiency to electricity per 100 miles.
- EV Charging Loss Calculator
Estimate grid energy and loss while charging an EV.
- EV Charging Tariff Comparison
Compare two entered electricity rates for EV charging.
- EV Home Charging Monthly Cost
Budget monthly home EV charging electricity cost.
- EV vs Petrol Break-even Calculator
Estimate energy-savings payback for an EV price difference.
Finance · 11 calculators
- Lease vs PCP Calculator
Compare the cash commitments entered for lease and PCP agreements.
- Car Affordability Calculator
Estimate a car-price ceiling from a payment budget and deposit.
- PCP Excess Mileage Calculator
Estimate the contractual charge for driving over a PCP mileage allowance.
- Negative Equity Car Finance Calculator
Compare settlement figure and vehicle value to see your equity position.
- Car Finance Overpayment Calculator
Estimate how extra monthly payments change an amortising balance.
- Car Finance Deposit Calculator
Estimate the deposit needed for a target monthly car-finance payment.
- Car Lease Calculator
Estimate total lease contract cost from entered payments and fees.
- PCP Car Finance Calculator
Estimate PCP monthly payments and total customer payable.
- Car Loan Calculator
Estimate standard car-loan monthly payments and interest.
- HP Car Finance Calculator
Estimate Hire Purchase monthly payments and finance cost.
- PCP vs HP Calculator
Compare PCP and HP payment structures using shared assumptions.
Ownership · 13 calculators
- EV vs Diesel Total Cost of Ownership Calculator
Compare entered EV and diesel ownership costs over the same period.
- Petrol vs Diesel vs EV Total Cost of Ownership Calculator
Compare entered ownership costs for petrol, diesel and EV vehicles.
- Car Depreciation Per Mile Calculator
Estimate depreciation per ownership mile from purchase, resale and mileage assumptions.
- Annual Motoring Budget Calculator
Build an annual car cash budget from entered running costs and finance payments.
- Annual Car Mileage Calculator
Estimate annual car mileage from commuting and other driving.
- Mileage Reimbursement Calculator
Calculate reimbursement from business miles and an entered rate.
- Car Running Cost Calculator
Estimate annual fuel and recurring car running costs.
- Car Depreciation Calculator
Estimate vehicle value loss over an ownership period.
- Car Total Cost of Ownership Calculator
Estimate depreciation plus recurring costs over ownership.
- EV vs Petrol Total Cost of Ownership
Compare EV and petrol ownership costs from entered assumptions.
- HMRC Mileage Calculator
Calculate the HMRC approved mileage amount for 2026/27.
- Mileage Tax Relief Calculator
Compare approved mileage amount with employer payments.
- Advisory Fuel Rate Calculator
Calculate 1 September 2026 company-car advisory fuel amounts.