2020 · Midsize Car · Gas
2020 Mazda 3 MPG & fuel economy
The 2020 Mazda 3 is a midsize car offered in 5 EPA-rated configurations. The most efficient version returns 30 MPG combined (26 city / 35 highway) on regular gasoline. Across the lineup, combined ratings range from 27 to 30 MPG. Efficiency is unchanged from the 2019 model. Among 64 midsize cars rated for 2020, it ranks 27th for lowest fuel cost. At 15,000 miles a year with $3.10/gal regular gas, it costs about $1,550 a year to fuel.
What will it cost you?
Your mileage and prices are saved and used across the site.
Fuel average
The 2020 Mazda 3's fuel average is 12.8 km/L (7.8 L/100 km), or 30 MPG combined: 11.1 km/L in the city and 14.9 km/L on the highway.
| MPG | km/L | L/100 km | |
|---|---|---|---|
| City | 26 | 11.1 | 9.0 |
| Highway | 35 | 14.9 | 6.7 |
| Combined | 30 | 12.8 | 7.8 |
How it ranks among 2020 Midsize Cars
Full class ranking →Annual fuel cost at 15,000 miles and default prices; shorter bars cost less.
3 MPG across model years
Full history →5 EPA-rated configurations
| Configuration | Type | City | Hwy | Combined | Range | Your cost / yr |
|---|---|---|---|---|---|---|
| FWD · 2.5L 4-cyl · 6-speed automatic 3 5-Door 2WD |
Gas | 26 MPG | 35 MPG | 30 MPG | — | $1,550 |
| FWD · 2.5L 4-cyl · 6-speed automatic 3 4-Door 2WD |
Gas | 27 MPG | 36 MPG | 30 MPG | — | $1,550 |
| FWD · 2.5L 4-cyl · 6-speed manual 3 5-Door 2WD |
Gas | 25 MPG | 35 MPG | 29 MPG | — | $1,603 |
| 4WD · 2.5L 4-cyl · 6-speed automatic 3 4-Door 4WD |
Gas | 25 MPG | 33 MPG | 28 MPG | — | $1,661 |
| 4WD · 2.5L 4-cyl · 6-speed automatic 3 5-Door 4WD |
Gas | 24 MPG | 32 MPG | 27 MPG | — | $1,722 |
Specs (most efficient configuration)
- Fuel
- Regular gasoline
- Engine / motor
- 2.5L 4-cyl
- Transmission
- 6-speed automatic
- Drivetrain
- FWD
- Passenger volume
- 93 cu ft
- Cargo volume
- 20 cu ft
- Tailpipe CO₂
- 297 g/mi
- EPA fuel economy score
- 7/10
- EPA greenhouse gas score
- 7/10
2020 Mazda 3 vs. rivals
Compare the 2020 3
With any other car from any year, including other 3 model years. Type a year to jump, e.g. "2015 Accord".
Frequently asked questions
What is the gas mileage of the 2020 Mazda 3?
Up to 30 MPG combined (26 city / 35 highway); ratings range from 27 to 30 MPG depending on configuration.
What fuel does the 2020 Mazda 3 use?
Regular gasoline.
What is the fuel average in km/L for the 2020 Mazda 3?
The 2020 Mazda 3's fuel average is 12.8 km/L (7.8 L/100 km), or 30 MPG combined: 11.1 km/L in the city and 14.9 km/L on the highway.
How much does it cost to fuel the 2020 Mazda 3 per year?
About $1,550 at 15,000 miles a year with $3.10/gal regular gas, or $10.33 per 100 miles. Use the calculator on this page to plug in your own mileage and prices.