2021 Lexus LC 500 Gas Tank Size & Fuel Capacity
Fuel tank capacity
21.7gal · 82 L
The 2021 Lexus LC 500 has a fuel tank capacity of 21.7 gallons (82 liters).
A full tank is good for roughly 543 highway miles or 347 miles around town, going by the EPA ratings.
21.7 gal · Bigger than 72% of 2021 models we list.
Listed separately: 2021 Lexus LC 500 Convertible (21.7 gal).
2021 Lexus LC 500 fuel tank capacity by trim
MPG and range are city / highway.
| Trim | Engine | Drive | Tank | MPG city / hwy | Range city / hwy | |
|---|---|---|---|---|---|---|
| 2dr Coupe 5.0L 8cyl 10A · RWD MPG 16 / 25Range 347 / 543 mi | 5.0L 8cyl 10A | RWD | 21.7 gal82 L | 16 / 25 | 347 / 543 mi | |
| No trim matches all of these filters. | ||||||
Tank figures are the manufacturer's rated capacity, sorted smallest tank first. Range is tank size times EPA city or highway MPG.
How far a 2021 Lexus LC 500 goes on a tank
Gallons left and the distance they cover at each mark on the fuel gauge, at EPA city and highway mileage. At the combined rating of 19 MPG, a full 21.7-gallon tank covers about 412 miles.
| Gauge | Gallons | Highway miles | City miles |
|---|---|---|---|
| Full | 21.7 | 543 | 347 |
| 3/4 | 16.3 | 407 | 260 |
| 1/2 | 10.9 | 271 | 174 |
| 1/4 | 5.4 | 136 | 87 |
| 1/8 | 2.7 | 68 | 43 |
Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 789 gallons, roughly 36 full tanks.
Fuel gauges aren't perfectly linear and the low-fuel light comes on with a few gallons still in the tank, so plan your stop before the last eighth.
- EPA combined
- 19 MPG
- Tailpipe CO2
- 473 g/mi
- EPA greenhouse score
- 3 of 10
- Source
- EPA ratings
What it costs to fill up a 2021 Lexus LC 500
$114.58 to fill the 21.7-gallon tank from empty with premium, at this week's US average of $5.28 a gallon.
| Tank | Fuel | US avg / gal | From empty | From 1/4 tank |
|---|---|---|---|---|
| 21.7 gal | Premium | $5.28 | $114.58 | $85.93 |
By region, 21.7-gallon tank
| Region | Premium / gal | Fill from empty |
|---|---|---|
| East Coast | $4.93 | $106.98 |
| Midwest | $5.37 | $116.53 |
| Gulf CoastLowest | $4.57 | $99.17 |
| Rocky Mountain | $5.12 | $111.10 |
| West Coast | $6.08 | $131.94 |
| CaliforniaHighest | $6.36 | $138.01 |
Prices: U.S. Energy Information Administration retail averages for the week of October 26, 2026. This week's prices by state and city.
Your own price
- 21.7-gallon tank$114.58
- A year of driving (15,000 mi)$4,168
Starts at the US average for premium; type in what your station charges. For other tank sizes, use the fill-up calculator.
LC 500 tank size in other years
The 2021 LC 500 uses the same 21.7 gal tank as every LC 500 since 2018.
| Model year | Tank | Longest highway range |
|---|---|---|
| 2023 LC 500 | 21.7 gal | 543 mi |
| 2022 LC 500 | 21.7 gal | 543 mi |
| 2021 LC 500 | 21.7 gal | 543 mi |
| 2020 LC 500 | 21.7 gal | 543 mi |
| 2019 LC 500 | 21.7 gal | 543 mi |
| 2018 LC 500 | 21.7 gal | 564 mi |
2021 Lexus LC 500 vs similar 2021 coupes
The LC 500 has the largest tank of the four 2021 coupes compared here, 21.7 gallons against 20.0 for the INFINITI Q60.
| 2021 model | Tank | Longest highway range |
|---|---|---|
| Lexus LC 500 | 21.7 gal | 543 mi |
| INFINITI Q60 | 20.0 gal | 560 mi |
| BMW 4 Series | 15.6 gal | 530 mi |
| Audi RS 5 | 15.3 gal | 383 mi |
Other 2021 coupes of a similar size, one model per brand.
Frequently asked questions
What is the fuel tank capacity of the 2021 Lexus LC 500?
The 2021 Lexus LC 500 holds 21.7 gallons (82 liters).
How many gallons and liters does the 2021 Lexus LC 500 gas tank hold?
The 2021 Lexus LC 500 tank holds 82 liters, or 21.7 gallons in US gallons.
How far can a 2021 Lexus LC 500 go on a full tank?
About 543 miles on the highway and 347 miles in town, going from full to empty at its EPA ratings. Expect less in practice, since nobody runs the tank dry.
How many miles can a 2021 Lexus LC 500 go on a quarter tank?
About 136 highway miles or 87 in town from the 21.7-gallon tank, which has roughly 5.4 gallons left at the quarter mark. Gauges aren't exact, so treat that as a guide.
What gas does the 2021 Lexus LC 500 take?
Premium unleaded (required). The label inside the fuel door confirms it for your car.
How much does it cost to fill up a 2021 Lexus LC 500?
At the US average of $5.28 a gallon for premium (EIA, week of October 26, 2026), filling the 21.7-gallon tank from empty costs $114.58. It ranges from $99.17 in the Gulf Coast to $138.01 in California.
How much does a full tank of gas weigh in a 2021 Lexus LC 500?
About 135 pounds for the 21.7-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.
Does the 2021 Lexus LC 500 have a bigger gas tank than the Audi RS 5?
Yes. The 2021 Lexus LC 500 holds up to 21.7 gallons; the 2021 Audi RS 5 holds up to 15.3.
Sources
- Tank sizes: manufacturer-rated capacities from US-market specifications, checked against independent references. Updated October 2026.
- MPG and range: EPA ratings (fueleconomy.gov). Range is tank size times EPA MPG.
- Fuel prices: U.S. Energy Information Administration, week of October 26, 2026 (this week's prices).
Does your owner's manual say something different? Let us know and we'll fix it. More on how we check the numbers.