The 2019 Mazda CX-3 has a fuel tank capacity of 11.9 to 12.7 gallons (45–48 liters), depending on the trim. The most common size is 12.7 gallons, used on 3 trims.
A full tank is good for roughly 381–432 highway miles or 321–368 miles around town, going by the EPA ratings.
020 gal40 gal
12.7 gal · Smaller than 90% of 2019 models we list.
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 2019 Mazda CX-3 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 31 MPG, a full 12.7-gallon tank covers about 394 miles.
Gauge
Gallons
Highway miles
City miles
Full
12.7
432
368
3/4
9.5
324
276
1/2
6.4
216
184
1/4
3.2
108
92
1/8
1.6
54
46
Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 484 gallons, roughly 38 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.
At 12.7 gallons, the CX-3's largest tank ranks third of the four 2019 SUVs compared here. The Nissan Rogue Sport carries the most (14.5 gal) and the FIAT 500X the least (12.7 gal).
Other 2019 SUVs of a similar size, one model per brand.
2019 Mazda CX-3 fuel system recalls
NHTSA lists 1 fuel-system recall for the 2019 Mazda CX-3, out of 2 recalls in total. A recall applies only to the vehicles named in it, so check your VIN.
Delivery · Fuel pumpNov 12, 2021 · NHTSA 21V875000 · Mazda North American Operations · 121,038 vehicles
Mazda North American Operations (Mazda) is recalling certain 2018 Mazda3, Mazda6, 2019 CX-3, 2018-2019 MX-5, CX-5, CX-9, and 2019-2020 Mazda2 vehicles. The impeller inside the low-pressure fuel pump may crack and deform, potentially causing the fuel pump to fail.
Risk and remedy
Risk: Fuel pump failure may cause an engine stall, increasing the risk of a crash.
Remedy: Dealers will replace the fuel pumps, free of charge. Owner notification letters were mailed July 18, 2022. Owners may contact Mazda customer service at 1-800-222-5500 Option 4. Mazda's number for this recall is 5321K.
What is the fuel tank capacity of the 2019 Mazda CX-3?
The 2019 Mazda CX-3 holds between 11.9 and 12.7 gallons, depending on the trim. 12.7 gallons is the usual size; the smaller 11.9-gallon tank is on the Grand Touring 4dr SUV AWD.
How many gallons and liters does the 2019 Mazda CX-3 gas tank hold?
The 2019 Mazda CX-3 tank holds 45–48 liters, or 11.9–12.7 gallons in US gallons.
Which 2019 Mazda CX-3 has the biggest gas tank?
The 12.7-gallon tank is on the Grand Touring 4dr SUV, Sport 4dr SUV, Touring 4dr SUV. The smallest tank, 11.9 gallons, is on the Grand Touring 4dr SUV AWD.
Does AWD change the 2019 Mazda CX-3 gas tank?
Yes. AWD: 11.9 gal; FWD: 12.7 gal.
How far can a 2019 Mazda CX-3 go on a full tank?
About 381–432 miles on the highway and 321–368 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 2019 Mazda CX-3 go on a quarter tank?
About 108 highway miles or 92 in town from the 12.7-gallon tank, which has roughly 3.2 gallons left at the quarter mark. Gauges aren't exact, so treat that as a guide.
What gas does the 2019 Mazda CX-3 take?
Regular unleaded. The label inside the fuel door confirms it for your car.
How much does it cost to fill up a 2019 Mazda CX-3?
At the US average of $4.27 a gallon for regular (EIA, week of October 26, 2026), filling the 12.7-gallon tank from empty costs $54.23. It ranges from $46.99 in the Gulf Coast to $74.80 in California.
How much does a full tank of gas weigh in a 2019 Mazda CX-3?
About 79 pounds for the 12.7-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.
Does the 2019 Mazda CX-3 have a bigger gas tank than the FIAT 500X?
No, they match: both top out at 12.7 gallons in 2019.
Has the 2019 Mazda CX-3 had a fuel pump or fuel system recall?
Yes. NHTSA lists 1 fuel-system recall for the 2019 Mazda CX-3: 21V875000 (delivery · fuel pump). Check your VIN at nhtsa.gov/recalls to see if your car is affected.
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).