Hyundai Ioniq

Fuel economy, running costs and specs by model year

The Hyundai Ioniq appears in this database in 4 model years, from 2017 to 2020, offered with electric and hybrid and plug-in hybrid power. Combined economy ranges from 52 to 136 MPGe across those years, with annual fuel costs of $550 to $1,250 at 15,000 miles.

Fuel economy by year

How it compares

Against the average large cars in this dataset (about 29 MPGe), the Ioniq sits roughly 65 MPGe above that mark on average, making it a relatively efficient choice for its class.

Five-year fuel cost

Fuelling a Ioniq for five years at the EPA's 15,000-mile basis costs roughly $2,750 to $6,250, averaging about $4,500 across the versions here. That is the energy bill alone — it excludes insurance, maintenance and depreciation, which for most owners together exceed what goes into the tank.

The range within the range

Economy across the Ioniq varies by about 84 MPGe between its most and least frugal versions, which run on electric and hybrid and plug-in hybrid. Engine size, turbocharging, drivetrain and even wheel size explain most of that gap, so when you shop a used Ioniq check which version you are looking at before comparing its running cost to another car.

How it changed over time

Between 2017 and 2020 the Ioniq's average combined economy slipped from about 96 to 92 MPGe. Redesigns, new engines and added hybrid or electric versions are usually what move the number, so the year you choose can matter as much as the model.

Best year for fuel economy

The 2017 Ioniq has the strongest average combined economy in this database at about 83 MPGe, while the 2020 is the lowest at about 74 MPGe. If running cost is your priority, that is the year to target on the used market; later years may add equipment or safety features instead.

2020 Ioniq at a glance

Use the comparison tool to set the Ioniq against a rival, or go back to all Hyundai models.