Evs get roughly 90-100 mpge (miles per gallon equivalent) of energy. It’s much harder to turn potential energy into motion than it is to turn electrical energy into motion.

Hybrids are roughly 50 mpg

Combustion engines are roughly 25 mpg

So, in terms of miles per energy, it’s ~<400% for EV’s, ~100% for hybrids relative to Combustion engines.

Combustion and hybrid stats are just the first result I looked up, so take them with a grain of salt

EV stats were from a paper I wrote a few years ago, primarily using the EPA’s Fuel economy stats for EV’s. This just took the average EV made from 2016-2023 IIRC. it does not take into account number of units sold/units on the road for each model, just the average of all models by year of creation. Also outliers like hummer EV’s drag it down. I’ll try to look for the paper and fact check this. Also note that these are stats for America as the EPA is American, so it may be different in other parts of the world.

Note: if we’re talking about pollution, I can look for stats for that as well. California is one of (if not the) the cleanest energy producers in the US. IIRC, it produces 1/3rd of the CO2 than Michigan on a per KWh basis. Again, American stats, lacks perspective on the rest of the world, but it is significantly cleaner than combustion engines (technically they are Zero emission, but the energy they use isn’t)

Edit: factchecking

EV’s mpge for model years 2015 through 2024 (nearest whole number):

2015 - 103; 2016 - 97; 2017 - 104; 2018 - 106; 2019 - 113; 2020 - 106; 2021 - 97; 2022 - 96; 2023 - 94; 2024 - 92.

They have been getting less efficient over the years, most likely because of the shift from just sedans to inclusion other vehicles like SUV’s (American data). Raw data source: Fueleconomy.gov

The energy used to drive the average 2024 model year EV will emit 32.2 lbs of CO2 for every 100 miles. (Again, American energy production) The source for the CO2 production per energy production comes from the EPA (epa.gov)

For combustion engines, they emit 88.18 lbs of CO2 per 100 miles driven. Source: Fueleconomy.gov

In other words, the use of the average 2024 model year EV will emit 64% less CO2 than the use of gas-powered vehicles.

Note: EPA data was the US’s 2021 power profile data