How is this calculated?
Gallons needed = distance / MPG Total cost = gallons needed * price per gallon Cost per mile = price per gallon / MPG Metric liters = (distance km * L/100 km) / 100 CO2 gasoline estimate = gallons * 8.89 kg
Example: a 300-mile trip at 28 MPG uses 10.71 gallons. At $3.50 per gallon, the one-way fuel cost is $37.50 and gasoline CO2 is about 95.3 kg.
How do I use this calculator?
- Choose the unit or currency setting that matches your vehicle data.
- Enter the required vehicle, route, fuel, weight or loan values in the calculator form.
- Review inline warnings and correct any missing or negative inputs.
- Read the live result card for the primary answer and supporting totals.
- Use the worked example if you want to check the formula with sample values.
- Copy, share or print the results for comparison or record keeping.
What do the terms mean?
- MPG
- Miles per gallon, used for US trip estimates.
- L/100 km
- Liters per 100 kilometers, common outside the US.
- Round trip
- The outbound distance doubled for a return journey.
- CO2 estimate
- Approximate tailpipe carbon dioxide from fuel burned.
- Cost per mile
- Trip fuel cost divided by trip distance.
What are real-world examples?
| Scenario | Inputs | Result | Notes |
|---|---|---|---|
| Daily commute | 32 mi, 30 MPG | $3.73 | One-way at $3.50/gal |
| Weekend road trip | 300 mi, 28 MPG | $37.50 | Gasoline |
| Diesel pickup | 180 mi, 17 MPG | $42.35 | $4.00/gal diesel |
| Metric van route | 420 km, 9.5 L/100 km | 39.9 L | Multiply by price/L |
What tips improve accuracy?
- Use real observed MPG rather than window-sticker ratings for trip budgets.
- Add 5% to 15% for mountains, winter fuel, headwinds or stop-and-go traffic.
- Diesel emits about 10.18 kg CO2 per gallon; gasoline about 8.89 kg.
- Tolls, parking and hotel charging are separate from fuel cost.
- For towing, use your towing MPG rather than unloaded MPG.
- Check tire pressure before long trips to reduce waste.
Did you know? EPA estimates commonly use 8.89 kg CO2 per gallon of gasoline and 10.18 kg CO2 per gallon of diesel for tailpipe carbon dioxide calculations.
Related calculators
Frequently asked questions
Fuel cost calculator
A fuel cost calculator helps a customer understand what a trip or monthly driving may cost before they buy a vehicle. It usually needs distance, expected MPG or km/L, fuel price, and sometimes city versus highway driving. The basic formula is miles divided by MPG, then multiplied by fuel price per gallon. It is a planning estimate, because traffic, tire pressure, load, speed, weather, and driving habits all change fuel use.
How do i figure out my miles per gallon
The most reliable everyday method is the fill-up method. Fill the tank completely, reset the trip meter, drive normally, then fill the tank again. Divide the miles driven by the gallons added on the second fill. For example, 300 miles divided by 12 gallons equals 25 MPG. Do this over several tanks for a fair average, because one tank can be affected by traffic, idling, weather, or towing.
How many miles per gallon for 2008 lincoln
A 2008 Lincoln's MPG depends on the exact model and drivetrain. As examples, the EPA lists the 2008 Lincoln Town Car at 18 MPG combined on regular gas, the 2008 Lincoln MKZ at 22 MPG combined for front-wheel drive and 19 MPG for all-wheel drive, and the 2008 Lincoln Navigator 2WD at 14 MPG combined. Real mileage may be lower with age, poor maintenance, heavy tires, or city driving.
How many miles 1 gallon of gas
One gallon of gas will take a vehicle about as many miles as its MPG rating. If your vehicle averages 25 MPG, one gallon should move it about 25 miles in normal mixed driving. If it averages 15 MPG, one gallon gives about 15 miles. The number changes with speed, load, terrain, tire pressure, engine condition, fuel quality, air conditioning use, and driving style. Your own fill-up records are the best guide.
How long to travel 1 mile at 100 mph
At 100 miles per hour, one mile takes 1 divided by 100 of an hour. That equals 0.01 hour, or 0.6 minute, which is 36 seconds. This is only the mathematical travel time at a constant 100 mph. In real life, acceleration, braking, traffic, road conditions, and speed limits matter. I would only use this calculation for understanding speed and distance, not as driving advice.
How to figure gas cost for trip
To figure gas cost for a trip, use this formula: trip miles divided by expected MPG, then multiplied by the fuel price per gallon. For example, a 300-mile trip at 25 MPG uses about 12 gallons. If gas is $3.50 per gallon, the fuel cost is about $42. Add a little extra for traffic, detours, idling, mountains, roof racks, towing, or heavy passengers, because real-world MPG often changes on trips.