In the UK today, the monthly running cost of an electric car depends mainly on how it’s charged, how far it’s driven, and the PCP finance attached to it. Energy alone can range from roughly 7p per mile when charging at home to around 14p per mile on public chargers, compared with about 12p–22p per mile for petrol or diesel depending on engine size.
That difference means some drivers spend hundreds of pounds less per year, while others see costs closer to petrol if they rely heavily on public charging. Understanding the real monthly figure requires breaking those elements down properly.
Energy cost per mile is the foundation of EV affordability
Government advisory fuel-rate data shows a clear baseline for UK EV running costs.
From late 2025:
- Home charging: about 7p per mile
- Public charging: about 14p per mile
- Petrol or diesel: roughly 12p to 22p per mile depending on engine size
Separate UK charging analysis reaches similar conclusions, estimating around 8p per mile for home-charged EVs versus 13p–17p per mile for petrol or diesel, with some overnight tariffs dropping EV driving costs to under 3p per mile.
This explains why charging location matters more than almost any other factor in EV ownership cost.
Converting per-mile costs into realistic monthly spending
Annual energy-cost comparisons provide a clearer real-world picture.
For roughly 7,100 miles of driving per year:
- Electric (home charging): ~£500/year
- Electric (public charging): ~£994/year
- Petrol: ~£850–£1,065/year
- Diesel: ~£780–£995/year
Spread monthly, that equates to roughly:
- £40/month for home-charged EV energy
- £80+/month relying on public charging
- £65–£90+/month for petrol or diesel fuel
This is why EV savings vary so widely between households.
Rapid charging narrows the gap
Public charging is improving but remains the most expensive way to run an EV.
Typical UK charging prices in 2025 show:
- Home charging (~£0.28/kWh): ~£16–£17 for a 60 kWh battery
- Rapid charging: roughly £33–£47 for a similar charge depending on speed and network
AA charging data also indicates:
- Domestic charging: about 5.65p per mile
- Off-peak rapid charging: roughly 10.6p per mile, still slightly cheaper than petrol in some cases
So while public charging reduces savings, it does not automatically make EVs more expensive than combustion cars.
Electricity prices shape the long-term trend
The wider UK energy market still influences EV running costs.
As of early 2026, the regulated electricity unit rate under the price cap sits around 27.69p per kWh for households on standard tariffs.
Because EV efficiency converts electricity into miles more efficiently than petrol converts fuel into motion, even relatively high electricity prices can still produce competitive per-mile costs.
Monthly running cost beyond energy
Energy is only part of the total monthly picture.
Electric vehicles typically benefit from:
- Lower routine servicing due to fewer moving parts
- Reduced mechanical wear compared with combustion engines
At the same time:
- Insurance can be higher for some EVs
- Finance payments remain the largest monthly cost for most drivers, with more than 12 million British motorists currently eligible for mis-sold car finance.
These factors mean two identical EVs can feel very different financially depending on ownership structure rather than technology alone.
Road tax and future policy changes
Electric-vehicle taxation is also evolving.
The UK plans to introduce a mileage-based EV charge of roughly 3p per mile from 2028, alongside existing vehicle taxes, partly to replace declining fuel-duty revenue.
Even with this change, EVs are still expected to remain cheaper to tax per mile than petrol cars in many scenarios.
The realistic monthly range most drivers experience
Bringing all verified data together:
Typical UK monthly EV running costs (energy only):
- Home charging: ~£40/month
- Mixed or public charging: ~£70–£90/month
Comparable petrol or diesel fuel spend:
- Roughly £65–£90+ per month depending on vehicle efficiency
These figures explain why EV ownership can feel dramatically cheaper for some drivers but only comparable for others.
The bigger financial picture
What the numbers ultimately show is not that electric cars are universally cheaper, but that their costs are increasingly predictable.
Savings depend on:
- Access to home charging
- Annual mileage
- Electricity tariff
- Finance structure
When those align well, EVs can deliver clear monthly savings.
When they do not, the financial difference may be modest — but rarely dramatically worse.
FAQs: Electric Car Monthly Running Costs in the UK
How much does it cost per month to run an electric car in the UK?
For most drivers, electricity costs range from roughly £40 per month when charging at home to around £70–£90 per month when relying more heavily on public charging. This is broadly similar to — or cheaper than — typical petrol fuel spending depending on mileage.
Are electric cars cheaper to run than petrol cars?
Yes, in many cases. Home-charged electric cars can cost significantly less per mile than petrol or diesel. However, savings depend on charging access, mileage and electricity tariff. Drivers using mainly public rapid charging may see smaller savings.
What is the cost per mile for an electric car in the UK?
Typical UK figures are about 7p per mile when charging at home and roughly 14p per mile using public chargers, compared with around 12p–22p per mile for petrol or diesel depending on vehicle efficiency.
Do electric cars have higher insurance or servicing costs?
Insurance can sometimes be higher, particularly for newer or higher-value EVs. Servicing is usually cheaper and less frequent because electric cars have fewer moving parts and no engine oil or exhaust system.
Will electric car running costs change in the future?
Running costs are expected to remain competitive with petrol and diesel. Future taxation changes and electricity prices may shift the balance slightly, but improving efficiency and growing competition should continue supporting affordability.
John is the Editor and Spokesperson for Electric Car Guide.
With over 20 years of writing experience, he has written for titles such as City AM, FE News and NerdWallet.com, covering various automotive and personal finance topics.
John’s market commentary has been covered by the likes of The Express, The Independent, Yahoo Finance and The Evening Standard.
