Best Car & Transport Calculators 2026
Compare the top free calculators for car loans, depreciation, fuel costs, EV charging, and total running costs
Why Use a Car Cost Calculator?
Buying and running a car involves dozens of costs that are easy to overlook. From depreciation eating away at your vehicle's value to the daily cost of fuel, understanding the true expense of motoring helps you make smarter decisions about what to buy, how to finance it, and when to switch.
We have reviewed and compared the best car and transport calculators available in 2026, rating them on accuracy, comprehensiveness, and ease of use.
Top Car & Transport Calculators for 2026
🥇 Car Loan Calculator
Calculate your monthly car finance payments based on the loan amount, interest rate, and term length. See the total interest payable and full cost of the loan at a glance.
Best for: Anyone financing a car purchase through a personal loan, HP agreement, or PCP deal who wants to understand the true cost.
🥈 Car Depreciation Calculator
Estimate how much your car will lose in value over time. Depreciation is often the single largest cost of car ownership, especially in the first three years.
Best for: New and used car buyers who want to understand the real cost of ownership, and sellers estimating trade-in or resale value.
🥉 Fuel Cost Calculator
Work out the fuel cost for any journey or your annual driving. Enter your car’s fuel economy, current fuel price, and distance to get an accurate cost breakdown.
Best for: Commuters calculating daily travel costs, families planning road trips, and anyone comparing the running costs of different vehicles.
#4 Electric vs Petrol Calculator
Compare the total cost of ownership between electric and petrol vehicles side by side. Covers purchase price, fuel or electricity, tax, insurance, and maintenance.
Best for: Drivers considering switching to electric, fleet managers evaluating options, and anyone weighing up the financial case for an EV.
#5 Car Running Cost Calculator
Get the complete picture of what your car costs to run each year. Combines fuel, insurance, road tax, MOT, servicing, and depreciation into a single figure.
Best for: Budget-conscious drivers, families deciding whether to keep or replace a vehicle, and anyone wanting a full cost-of-ownership breakdown.
#6 EV Charging Cost Calculator
Calculate how much it costs to charge your electric vehicle at home or at public charging stations. Compare home tariff rates with public network pricing.
Best for: EV owners optimising their charging costs, prospective EV buyers estimating running costs, and anyone comparing home vs public charging.
Also Worth Trying
If you are comparing the overall cost of commuting by car versus public transport, consider using our fuel cost calculator alongside a simple monthly travel pass comparison to see which option saves you more.
How We Ranked These Calculators
- Accuracy: Results verified against real-world data and manufacturer specifications
- Comprehensiveness: Covers all major cost categories, not just one
- Clarity: Clear breakdowns showing how each figure was calculated
- Up-to-date: Uses current fuel prices, tax rates, and insurance averages
- No barriers: Free to use, no registration required
Frequently Asked Questions
How much does it really cost to run a car in 2026?
The total cost of car ownership goes beyond the monthly payment. You need to factor in depreciation (the biggest cost for new cars), insurance, fuel or electricity, road tax (VED), servicing, MOT, and repairs. Our car running cost calculator combines all of these into a single annual and monthly figure so you can budget accurately.
Is it cheaper to buy an electric car or a petrol car in 2026?
While electric cars typically cost more upfront, they are significantly cheaper to run. Electricity costs roughly 3-5p per mile compared to 12-18p per mile for petrol. Over a five-year ownership period, an EV can save thousands in fuel and maintenance costs. Use our electric vs petrol calculator to compare your specific situation.
How do I calculate the true cost of a car loan?
The advertised APR only tells part of the story. You need to consider the total interest paid over the loan term, any arrangement fees, and the impact on your monthly budget. Our car loan calculator shows your monthly payments, total interest, and the full amount repayable so you can compare deals and decide what you can afford.