2021 head-to-head · Compact Car

2021 Mazda 3 vs Volkswagen Jetta

MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.

Swap sides
✓ Cheaper to run
$1,500/ year to fuel
31 MPG
✓ Cheaper to run
$1,368/ year to fuel
34 MPG

The 2021 Volkswagen Jetta is the cheaper one to run. Driving 15,000 miles a year with $3.10/gal regular gas, it costs about $1,368 a year to fuel (34 MPG), versus $1,500 for the 2021 Mazda 3 (31 MPG). That's roughly $132 a year, or about $662 over five years.

Your numbers

Change these to match your driving and local prices. Every figure and chart on this page updates.

Fuel cost over 10 years

  • Mazda 3
  • Volkswagen Jetta

Side by side

Mazda 3Volkswagen Jetta
$1,500 Your annual fuel cost $1,368
31 MPG Combined efficiency 34 MPG
28 MPG City 30 MPG
36 MPG Highway 41 MPG
93 cu ft Passenger volume 94 cu ft
13 cu ft Cargo volume 16 cu ft
287 g/mi Tailpipe CO₂ (g/mi) 260 g/mi
7/10 EPA fuel economy score 7/10
7/10 EPA greenhouse gas score 7/10
Gas Powertrain Gas
Regular gasoline Fuel Regular gasoline
2.0L 4-cyl Engine / motor 1.4L 4-cyl turbo
6-speed automatic Transmission 6-speed manual
FWD Drivetrain FWD

✓ marks the better value. EPA scores run 1–10 (10 is best). Volumes come from the EPA interior volume index and aren't published for every body style.

Mazda 3 vs Volkswagen Jetta across model years

  • Mazda 3
  • Volkswagen Jetta

Annual fuel cost of the most efficient configuration of each model year, at your prices. Click a point to open that year.

How they differ

Per EPA interior volume figures, the Volkswagen Jetta has more cargo space (16 vs. 13 cu ft).

Among 37 2021 compact cars, the Mazda 3 ranks 13th and the Volkswagen Jetta 11th for lowest fuel cost.

Frequently asked questions

Which is more fuel-efficient, the 2021 Mazda 3 or the 2021 Volkswagen Jetta?

Measured by cost to drive, the Volkswagen Jetta. The Mazda 3 is rated 31 MPG combined and the Volkswagen Jetta 34 MPG (EPA, most efficient configuration of each).

How much does it cost to fuel the 2021 Mazda 3 vs. the Volkswagen Jetta per year?

At 15,000 miles a year with $3.10/gal regular gas, about $1,500 for the Mazda 3 and $1,368 for the Volkswagen Jetta.

Which has more cargo space?

The Volkswagen Jetta, with 16 cu ft of luggage volume versus 13 cu ft (EPA interior volume index).

Mazda 3 vs Volkswagen Jetta in other years

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