Gas cost for 400 miles
A 400-mile drive uses 16.0 gallons in a 25 mpg car, which is $56.00 at $3.50 a gallon. Plug in your own car below, or read your number off the table.
Different distance, a round trip, or splitting with friends? Use the full fuel cost calculator, which can also look up your car's EPA mpg.
400-mile gas cost by mpg and price
| MPG | Gallons | $3.00/gal | $3.50/gal | $4.00/gal | $4.50/gal | $5.00/gal |
|---|---|---|---|---|---|---|
| 15 mpg | 26.7 | $80.00 | $93.33 | $106.67 | $120.00 | $133.33 |
| 20 mpg | 20.0 | $60.00 | $70.00 | $80.00 | $90.00 | $100.00 |
| 25 mpg | 16.0 | $48.00 | $56.00 | $64.00 | $72.00 | $80.00 |
| 30 mpg | 13.3 | $40.00 | $46.67 | $53.33 | $60.00 | $66.67 |
| 35 mpg | 11.4 | $34.29 | $40.00 | $45.71 | $51.43 | $57.14 |
| 40 mpg | 10.0 | $30.00 | $35.00 | $40.00 | $45.00 | $50.00 |
| 50 mpg | 8.0 | $24.00 | $28.00 | $32.00 | $36.00 | $40.00 |
Gallons = 400 ÷ mpg; cost = gallons × price. 15–20 mpg is typical of full-size pickups and big SUVs, 25–35 of most cars and crossovers, 40–50 of hybrids (EPA ratings, FuelEconomy.gov).
400 miles at a glance
- Distance in kilometres: 644 km
- Round trip: 800 miles
- Driving time at a 60 mph average, no stops: 6 h 40 min
- Fuel in litres at 30 mpg: 50 L
Nearby distances: 200 miles · 250 miles · 300 miles · 500 miles · 600 miles · 750 miles. For hotels, food and tolls on top of fuel, try the road trip cost calculator. Not sure of your mpg? Work it out with the MPG calculator.
Questions drivers ask
How much does gas cost for a 400-mile trip?
Divide 400 by your mpg, then multiply by the price per gallon. At 25 mpg you burn 16.0 gallons, which costs $56.00 at $3.50 a gallon or $64.00 at $4.00. At 35 mpg it is 11.4 gallons ($40.00 at $3.50).
How many gallons of gas does it take to drive 400 miles?
Gallons = miles ÷ mpg. 400 miles takes 20.0 gallons at 20 mpg, 13.3 at 30 mpg and 10.0 at 40 mpg. In litres that is 50 L for a 30 mpg car.
How long does it take to drive 400 miles?
At an average of 60 mph with no stops it is about 6 h 40 min of driving. Real trips take longer: add time for fuel, food and rest breaks.
How many fuel stops for 400 miles?
A car with a 14-gallon tank at 25 mpg has about 350 miles of range, or roughly 260 miles if you refill at a quarter tank. That means about 1 stops for 400 miles. The trip calculator works it out for your tank size.
What is 400 miles round trip?
Going there and back is 800 miles, so double the fuel and cost: at 25 mpg and $3.50 a gallon the round trip costs $112.00.