Vehicle comparison
BMW iX vs Tesla Model X
Side-by-side fuel and ownership cost comparison. Estimates use 12,000 mi/year at average US gas and electricity prices.
- Updated for 2026
- EPA-style MPG
- US avg fuel prices
- EV rates vary by state
- Transparent assumptions
Lowest running cost
Tesla Model X wins on fuel cost
At 12,000 miles per year, the Tesla Model X costs about $640 per year, roughly $98 less than the BMW iX. Over 5 years, that's about $492 in fuel savings.
Spec & cost comparison
MPG/MPGe figures are estimates based on typical recent model years.
| Spec | BMW iX | Tesla Model X |
|---|---|---|
| Type | EV | EV |
| Fuel | Electric | Electric |
| City MPG/MPGe | 86 | 109 |
| Highway MPG/MPGe | 87 | 97 |
| Combined MPG/MPGe | 86 | 103 |
| Battery (kWh) | 105 kWh | 100 kWh |
| Energy cost | $0.16/kWh | $0.16/kWh |
| Cost per mile | $0.062 | $0.053 |
Annual cost at 8k / 12k / 15k miles
Estimated yearly charging spend at common US mileage levels.
| Miles/year | BMW iX | Tesla Model X | Difference |
|---|---|---|---|
| 8,000 | $492/yr · $41/mo | $427/yr · $36/mo | $66 (Tesla Model X) |
| 12,000 | $738/yr · $62/mo | $640/yr · $53/mo | $98 (Tesla Model X) |
| 15,000 | $923/yr · $77/mo | $800/yr · $67/mo | $123 (Tesla Model X) |
Estimates only. Real costs depend on driving style, terrain, local gas/electricity prices and weather.
Which one is best for…
Best for commuting
Tesla Model X
Highest combined MPG/MPGe and lowest cost per mile means cheaper daily driving.
See Tesla Model XBest for road trips
Tesla Model X
Better highway efficiency, larger tank/battery and longer range between stops.
See Tesla Model XBest for families
Tesla Model X
SUVs, minivans and three-row vehicles win on space and child-seat flexibility.
See Tesla Model XBest for lowest running cost
Tesla Model X
Cheaper energy use and lower cost per mile at every common mileage tier.
See Tesla Model XHow we compare these vehicles
- Annual mileage
- Modeled at 12,000 mi/yr unless a scenario specifies otherwise.
- Cost per mile
- $/gal ÷ MPG, or $/kWh ÷ (MPGe ÷ 33.7) for EVs.
- EV vs gas
- Compared at average US gas and residential electricity prices — fast-charging can be 2–3× higher.
- Maintenance
- Fuel cost only — EVs typically save another $400–$1,000/yr in service and brake wear.
Sources & assumptions
- EPA fuel economy data — City / highway / combined MPG and MPGe baselines.
- U.S. Department of Energy (fueleconomy.gov) — Vehicle efficiency and EV range references.
- AAA gas price trends — Recent national and regional retail fuel averages.
- EIA electricity rates — Average residential per-kWh prices used for EV charging.
We summarize publicly available data — no scraping, no external API calls. Figures are calibrated periodically; use the calculators above for your exact inputs.
Frequently asked questions
Which is cheaper to drive, the BMW iX or Tesla Model X?
At 12,000 miles per year, the Tesla Model X costs about $640 per year vs $738 for the BMW iX — roughly $98 less per year.
What's the MPG difference between the BMW iX and Tesla Model X?
The BMW iX is rated around 86 combined MPGe versus 103 MPGe for the Tesla Model X. Highway figures are 87 vs 97.
How much will I spend on charging over 5 years?
Driving 12,000 miles a year for five years, expect about $3692 for the BMW iX and $3200 for the Tesla Model X, a difference of roughly $492.
Is the BMW iX or Tesla Model X better for commuting?
For pure cost per mile, the Tesla Model X wins. EVs charged at home typically deliver the lowest commuting cost, followed by hybrids and efficient compacts.
Which one is better for road trips?
Tesla Model X is generally the better road-trip choice — gas and hybrid vehicles win on long highway routes thanks to faster refueling, while EVs work best when charging stops fit your route.
Are these fuel cost numbers accurate for my driving?
They're estimates based on EPA-style combined MPG and average US gas and electricity prices. Real-world cost depends on local fuel prices, driving style, terrain, weather and how much city vs highway driving you do.