SEDAN · Premium gas
Lexus IS 300 Fuel Cost
Compact rear-drive luxury sedan with sporty handling and a refined interior. Below are estimated fuel costs based on 25 combined MPG and average US gas prices.
Best for buyers who value comfort and capability over rock-bottom fuel costs.
- Updated for 2026
- EPA-style MPG
- US avg fuel prices
- US units
- Transparent assumptions
21 MPG
31 MPG
25 MPG
17.4 gal
~435 mi
MPG breakdown
Estimated fuel cost at 12,000 miles/year
Based on 25 MPG and $4.10/gal.
Annual cost
$1968
Monthly cost
$164
Cost per mile
$0.164
Gallons / year
480
Estimate your own cost
Pre-filled with the Lexus IS 300's combined MPG.
Pre-filled with estimated combined MPG for the Lexus IS 300. Adjust for your real-world driving.
Estimated Annual Cost
$0.00
Per Month
$0.00
Per Mile
$0.000
~480 gallons per year
Cost by annual mileage
How much you'll spend per year at common US mileage levels (estimates).
| Miles per year | Gallons / year | Annual cost | Monthly cost |
|---|---|---|---|
| 8,000 | 320 | $1312 | $109 |
| 12,000 | 480 | $1968 | $164 |
| 15,000 | 600 | $2460 | $205 |
Estimates only. Actual costs depend on driving style, terrain, weather, and local fuel or electricity prices.
How we estimate Lexus IS 300 costs
- MPG / MPGe
- EPA-style combined city + highway figures for the base trim and recent model year.
- Fuel price
- Average US retail regular gas, premium where required, or per-kWh electricity.
- Annual mileage
- Default scenarios at 8,000 / 12,000 / 15,000 miles per year.
- Trim & year variance
- AWD, larger wheels, towing packages and older years can lower efficiency 5–15%.
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
What is the estimated annual fuel cost for the Lexus IS 300?
Driving 12,000 miles per year at 25 MPG and $4.10/gal, expect about $1968 per year. Heavier city driving or longer commutes will increase that.
What MPG does the Lexus IS 300 get?
Estimated EPA-style ratings are roughly 21 city / 31 highway / 25 combined MPG. Real-world numbers depend on terrain, climate and driving style.
What is the tank size of the Lexus IS 300?
The Lexus IS 300 typically has a 17.4-gallon tank. At 25 combined MPG, that's roughly 435 miles of driving range per fill-up.
How does Lexus IS 300 fuel cost compare to other vehicles?
At 12,000 miles per year, this vehicle costs about $1968. Compare it to other sedans on our index page or use the cost-per-mile calculator to compare two specific vehicles side-by-side.
Cheaper-to-drive alternatives
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Compare the Lexus IS 300 head-to-head
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Popular drives that pair well with the Lexus IS 300.