Mini averages 29.5 mpg combined across 8 petrol and diesel models (2002–2027). The best on record does 33 mpg, the thirstiest 25 — a yearly fuel gap of about $372. Its 2 electric models sit apart at 104.5 MPGe — 32.2 kWh per 100 miles, about $657 a year to charge, which is $645 less than the average Mini costs to fuel.
What that actually costs
What a Mini costs to feed, at 12,000 miles a year and $3.20 a gallon.
| Measure | Value |
|---|---|
| Average combined | 29.5 mpg |
| Fuel per year | $1,302 |
| Most frugal on record | 33 mpg — $1,164 a year |
| Thirstiest on record | 25 mpg — $1,536 a year |
| Its electric models | 104.5 MPGe — $657 a year to charge |
Mini 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 |
|---|---|---|---|
| Mini Cooper Coupe | 32 / 32 | $1,200 | |
| Mini Hardtop | 32 / 27 | $1,259 | |
| Mini Cooper Convertible | 32 / 26 | $1,280 | |
| Mini Cooper | 33 / 25 | $1,284 | |
| Mini Cooper Roadster | 30 / 29 | $1,289 | |
| Mini Paceman | 30 / 29 | $1,311 | |
| Mini Clubman | 32 / 27 | $1,324 | |
| Mini Countryman | 30 / 27 | $1,357 |
The electric Minis, measured differently
Mini has 2 models that never visit a filling station, averaging 104.5 MPGe. That figure looks four times better than the 29.5 mpg the petrol Minis 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 |
|---|---|---|---|
| Mini Hardtop | 30.9 | $630 | |
| Mini Countryman | 34.9 | $712 |
MPG is a number. Dollars per year is the answer.
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How we count
Mini rests on 130 EPA ratings covering 8 models from 2002 to 2027, plus 2 electric ones 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 Mini gas mileage?
29.5 mpg combined across 8 models and 130 EPA ratings, from 2002 to 2027 — 25 model years in one figure, which is why it sits below what a new Mini does today.
Which Mini model is the most economical?
The Mini Cooper Coupe at 32.0 mpg, about $1,200 a year in fuel, against the Countryman at 28.3 mpg and $1,357 — a gap of $157 a year between the two ends of the same badge.
How much does a Mini cost to run?
About $1,302 a year in fuel, at 12,000 miles and $3.20 a gallon. Over five years that is $6,510, before a single service.
Does Mini make anything electric?
Yes — 2 models, rated 104.5 MPGe rather than in mpg, which works out to 32.2 kWh per 100 miles and roughly $657 a year at the socket. That is $645 less than the average petrol Mini, though the two ratings are not in the same unit.
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