Audi averages 24.7 mpg combined across 50 models (1984–2027). The best on record does 115 mpg, the thirstiest 14 — a yearly fuel gap of about $2,409.
What that actually costs
What a Audi costs to feed, at 12,000 miles a year and $3.20 a gallon.
| Measure | Value |
|---|---|
| Average combined | 24.7 mpg |
| Fuel per year | $1,555 |
| Most frugal on record | 115 mpg — $334 a year |
| Thirstiest on record | 14 mpg — $2,743 a year |
Audi models by fuel economy
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 |
|---|---|---|---|
| Audi Q4 | 115 / 95 | $362 | |
| Audi Q6 | 104 / 104 | $369 | |
| Audi e-tron | 115 / 74 | $422 | |
| Audi RS e-tron GT | 85 / 81 | $463 | |
| Audi e-tron GT | 85 / 82 | $463 | |
| Audi e-tron Sportback | 77 / 77 | $499 | |
| Audi SQ6 | 91 / 28 | $645 | |
| Audi Q8 | 87 / 18 | $1,204 | |
| Audi Q5 e | 32 / 26 | $1,297 | |
| Audi A3 | 39 / 21 | $1,329 | |
| Audi TTS | 35 / 24 | $1,386 | |
| Audi SQ8 | 73 / 16 | $1,386 | |
| Audi A4 allroad | 35 / 25 | $1,401 | |
| Audi A5 | 30 / 20 | $1,477 | |
| Audi A8 L e | 26 / 26 | $1,477 | |
| Audi S3 | 27 / 24 | $1,500 | |
| Audi A7 | 30 / 21 | $1,506 | |
| Audi A4 | 31 / 19 | $1,587 | |
| Audi Q3 | 26 / 22 | $1,607 | |
| Audi Q5 | 27 / 20 | $1,613 | |
| Audi A6 allroad | 25 / 22 | $1,627 | |
| Audi TT | 26 / 20 | $1,634 | |
| Audi RS 3 | 23 / 22 | $1,692 | |
| Audi A6 | 30 / 18 | $1,707 | |
| Audi TT RS | 24 / 20 | $1,738 | |
| Audi S5 | 24 / 19 | $1,786 | |
| Audi S7 | 22 / 18 | $1,829 | |
| Audi 4000 | 24 / 17 | $1,837 | |
| Audi A8 L | 28 / 18 | $1,846 | |
| Audi A8 | 28 / 18 | $1,846 | |
| Audi 80 | 22 / 19 | $1,855 | |
| Audi SQ5 | 23 / 19 | $1,873 | |
| Audi S4 | 28 / 16 | $1,882 | |
| Audi 90 | 22 / 18 | $1,910 | |
| Audi RS 5 | 21 / 18 | $1,920 | |
| Audi Q7 | 22 / 14 | $1,939 | |
| Audi allroad | 25 / 16 | $1,990 | |
| Audi 5000 | 20 / 19 | $2,000 | |
| Audi S6 | 22 / 15 | $2,021 | |
| Audi 100 | 19 / 18 | $2,053 |
MPG is a number. Dollars per year is the answer.
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How we count
Fuel-economy figures come from EPA fueleconomy.gov — the same laboratory numbers printed on the window sticker. We don't adjust them; real-world consumption depends on how and where you drive.
What we add is money. Yearly cost assumes 12,000 miles at $3.20 a gallon — change either and the ranking stays, only the size of the bill moves. Cost per mile is the same figure divided out, useful when comparing a commute against a weekend car.
Frequently asked questions
What is the average Audi mpg?
24.7 mpg combined across 50 models rated between 1984 and 2027. That averages everything the brand has offered, so a long history of trucks pulls it down.
Which Audi model is the most economical?
See the table above — models are sorted from the most frugal down, with what each costs in fuel per year.
How much does a Audi cost to run?
About $1,555 a year in fuel on average, at 12,000 miles and $3.20 a gallon.
Why does the average look low for a modern brand?
Because it covers every model year on record, back to the 1980s. Cars built before the mid-2000s were markedly thirstier — that era is included.