2018 Kia Sedona Gas Tank Size & Fuel Capacity
Fuel tank capacity
21.1gal · 80 L
The 2018 Kia Sedona has a fuel tank capacity of 21.1 gallons (80 liters) on every trim.
A full tank is good for roughly 464–528 highway miles or 359–380 miles around town, going by the EPA ratings.
21.1 gal · Bigger than 74% of 2018 models we list.
- By trim
- Gas cap & parts
- Fuel essentials
- Miles per tank
- Fill-up cost
- Other years
- Compared
- Fuel recalls
- FAQ
2018 Kia Sedona fuel tank capacity by trim
MPG and range are city / highway.
| Trim | Engine | Drive | Tank | MPG city / hwy | Range city / hwy | |
|---|---|---|---|---|---|---|
| EX 4dr Minivan 3.3L 6cyl 6A · FWD MPG 18 / 24Range 380 / 506 mi | 3.3L 6cyl 6A | FWD | 21.1 gal80 L | 18 / 24 | 380 / 506 mi | |
| L 4dr Minivan 3.3L 6cyl 6A · FWD MPG 18 / 24Range 380 / 506 mi | 3.3L 6cyl 6A | FWD | 21.1 gal80 L | 18 / 24 | 380 / 506 mi | |
| LX 4dr Minivan 3.3L 6cyl 6A · FWD MPG 18 / 24Range 380 / 506 mi | 3.3L 6cyl 6A | FWD | 21.1 gal80 L | 18 / 24 | 380 / 506 mi | |
| SX 4dr Minivan 3.3L 6cyl 6A · FWD MPG 18 / 25Range 380 / 528 mi | 3.3L 6cyl 6A | FWD | 21.1 gal80 L | 18 / 25 | 380 / 528 mi | |
| SX Limited 4dr Minivan 3.3L 6cyl 6A · FWD MPG 17 / 22Range 359 / 464 mi | 3.3L 6cyl 6A | FWD | 21.1 gal80 L | 17 / 22 | 359 / 464 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 2018 Kia Sedona 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 20 MPG, a full 21.1-gallon tank covers about 422 miles.
| Gauge | Gallons | Highway miles | City miles |
|---|---|---|---|
| Full | 21.1 | 506 | 380 |
| 3/4 | 15.8 | 380 | 285 |
| 1/2 | 10.6 | 253 | 190 |
| 1/4 | 5.3 | 127 | 95 |
| 1/8 | 2.6 | 63 | 47 |
Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 750 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
- 19–21 MPG
- Tailpipe CO2
- 433–476 g/mi
- EPA greenhouse score
- 3–4 of 10
- Source
- EPA ratings
What it costs to fill up a 2018 Kia Sedona
$90.10 to fill the 21.1-gallon tank from empty with regular, at this week's US average of $4.27 a gallon.
| Tank | Fuel | US avg / gal | From empty | From 1/4 tank |
|---|---|---|---|---|
| 21.1 gal | Regular | $4.27 | $90.10 | $67.57 |
By region, 21.1-gallon tank
| Region | Regular / gal | Fill from empty |
|---|---|---|
| East Coast | $4.02 | $84.82 |
| Midwest | $4.27 | $90.10 |
| Gulf CoastLowest | $3.70 | $78.07 |
| Rocky Mountain | $4.46 | $94.11 |
| West Coast | $5.42 | $114.36 |
| CaliforniaHighest | $5.89 | $124.28 |
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
- 21.1-gallon tank$90.10
- A year of driving (15,000 mi)$3,202
Starts at the US average for regular; type in what your station charges. For other tank sizes, use the fill-up calculator.
Sedona tank size in other years
The 2018 Sedona uses the same 21.1 gal tank as every Sedona since 2015.
| Model year | Tank | Longest highway range |
|---|---|---|
| 2021 Sedona | 21.1 gal | 506 mi |
| 2020 Sedona | 21.1 gal | 506 mi |
| 2019 Sedona | 21.1 gal | 506 mi |
| 2018 Sedona | 21.1 gal | 528 mi |
| 2017 Sedona | 21.1 gal | 528 mi |
| 2016 Sedona | 21.1 gal | 528 mi |
| 2015 Sedona | 21.1 gal | 528 mi |
| 2014 Sedona | 19.8 gal | 475 mi |
| 2012 Sedona | 21.1 gal | 528 mi |
2018 Kia Sedona vs similar 2018 minivans
The Sedona has the largest tank of the five 2018 minivans compared here, 21.1 gallons against 20.0 for the Dodge Grand Caravan.
| 2018 model | Tank | Longest highway range |
|---|---|---|
| Kia Sedona | 21.1 gal | 528 mi |
| Dodge Grand Caravan | 20.0 gal | 500 mi |
| Toyota Sienna | 20.0 gal | 540 mi |
| Honda Odyssey | 19.5 gal | 546 mi |
| Chrysler Pacifica | 19.0 gal | 532 mi |
Other 2018 minivans of a similar size, one model per brand.
2018 Kia Sedona fuel system recalls
None of the 3 recalls NHTSA lists for the 2018 Kia Sedona involve the fuel system.
Frequently asked questions
What is the fuel tank capacity of the 2018 Kia Sedona?
The 2018 Kia Sedona holds 21.1 gallons (80 liters) on every trim we list.
How many gallons and liters does the 2018 Kia Sedona gas tank hold?
The 2018 Kia Sedona tank holds 80 liters, or 21.1 gallons in US gallons.
How far can a 2018 Kia Sedona go on a full tank?
About 464–528 miles on the highway and 359–380 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 2018 Kia Sedona go on a quarter tank?
About 127 highway miles or 95 in town from the 21.1-gallon tank, which has roughly 5.3 gallons left at the quarter mark. Gauges aren't exact, so treat that as a guide.
What gas does the 2018 Kia Sedona take?
Regular unleaded. The label inside the fuel door confirms it for your car.
How much does it cost to fill up a 2018 Kia Sedona?
At the US average of $4.27 a gallon for regular (EIA, week of October 26, 2026), filling the 21.1-gallon tank from empty costs $90.10. It ranges from $78.07 in the Gulf Coast to $124.28 in California.
How much does a full tank of gas weigh in a 2018 Kia Sedona?
About 131 pounds for the 21.1-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.
Does the 2018 Kia Sedona have a bigger gas tank than the Dodge Grand Caravan?
Yes. The 2018 Kia Sedona holds up to 21.1 gallons; the 2018 Dodge Grand Caravan holds up to 20.0.
Has the 2018 Kia Sedona had a fuel pump or fuel system recall?
No. None of the 3 recalls NHTSA lists for the 2018 Kia Sedona involve the fuel system.
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).
- Recalls: NHTSA recall database (Kia fuel system recalls).
Does your owner's manual say something different? Let us know and we'll fix it. More on how we check the numbers.