Mazda averages 23.5 mpg combined across 22 petrol and diesel models (1984–2026). The best on record does 38 mpg, the thirstiest 16 — a yearly fuel gap of about $1,389. Its 1 electric model sits apart at 92 MPGe — 36.6 kWh per 100 miles, about $747 a year to charge, which is $887 less than the average Mazda costs to fuel.
What that actually costs
What a Mazda costs to feed, at 12,000 miles a year and $3.20 a gallon.
| Measure | Value |
|---|---|
| Average combined | 23.5 mpg |
| Fuel per year | $1,634 |
| Most frugal on record | 38 mpg — $1,011 a year |
| Thirstiest on record | 16 mpg — $2,400 a year |
| Its electric models | 92 MPGe — $747 a year to charge |
Mazda models by gas mileage
From the most frugal down. The yearly figure is what the fuel actually costs at 12,000 miles.
| Model | Average mpg | Best / Worst engine | Fuel per year |
|---|---|---|---|
| Mazda CX-50 | 38 / 26 | $1,251 | |
| Mazda CX-3 | 31 / 26 | $1,267 | |
| Mazda CX-30 | 29 / 26 | $1,371 | |
| Mazda GLC | 30 / 24 | $1,371 | |
| Mazda CX-5 | 29 / 26 | $1,376 | |
| Mazda 323 | 28 / 27 | $1,391 | |
| Mazda Protege | 30 / 24 | $1,396 | |
| Mazda CX-70 | 26 / 25 | $1,506 | |
| Mazda MX-5 | 30 / 22 | $1,512 | |
| Mazda CX-90 | 26 / 25 | $1,518 | |
| Mazda MX-3 | 29 / 22 | $1,536 | |
| Mazda 626 | 33 / 20 | $1,600 | |
| Mazda Tribute | 32 / 18 | $1,641 | |
| Mazda MX-6 | 26 / 20 | $1,648 | |
| Mazda CX-9 | 26 / 18 | $1,770 | |
| Mazda CX-7 | 23 / 19 | $1,829 | |
| Mazda Millenia | 21 / 20 | $1,910 | |
| Mazda 929 | 19 / 18 | $2,043 | |
| Mazda RX-8 | 19 / 18 | $2,043 | |
| Mazda MPV | 20 / 17 | $2,133 | |
| Mazda RX-7 | 18 / 17 | $2,157 | |
| Mazda Navajo | 18 / 16 | $2,220 |
The electric Mazdas, measured differently
Mazda has 1 model that never visit a filling station, averaging 92 MPGe. That figure looks four times better than the 23.5 mpg the petrol Mazdas manage, but the two are not the same unit — so we keep them apart and price the electric ones in kilowatt-hours.
| Model | MPGe | kWh / 100 mi | Charging per year |
|---|---|---|---|
| Mazda MX-30 | 36.6 | $747 |
MPG is a number. Dollars per year is the answer.
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How we count
Mazda rests on 271 EPA ratings covering 22 models from 1984 to 2026, plus 1 electric one counted separately in MPGe. The laboratory numbers are EPA's and go in unchanged; the money is ours, at 12,000 miles a year and $3.20 a gallon. Full method.
Frequently asked questions
What is the average Mazda gas mileage?
23.5 mpg combined across 22 models and 271 EPA ratings, from 1984 to 2026 — 42 model years in one figure, which is why it sits below what a new Mazda does today.
Which Mazda model is the most economical?
The Mazda CX-50 at 30.7 mpg, about $1,251 a year in fuel, against the Navajo at 17.3 mpg and $2,220 — a gap of $969 a year between the two ends of the same badge.
How much does a Mazda cost to run?
About $1,634 a year in fuel, at 12,000 miles and $3.20 a gallon. Over five years that is $8,170, before a single service.
Does Mazda make anything electric?
Yes — 1 model, rated 92 MPGe rather than in mpg, which works out to 36.6 kWh per 100 miles and roughly $747 a year at the socket. That is $887 less than the average petrol Mazda, though the two ratings are not in the same unit.
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