AUTO CALCULATOR
Fuel Cost Calculator
Estimate the cost of fuel for a trip based on your distance, vehicle fuel efficiency, and current fuel price.
How to Calculate Fuel Cost
Fuel cost depends on three main factors: the distance you travel, your vehicle's fuel efficiency, and the price of fuel.
For vehicles measured in miles per gallon (MPG), the basic formula is:
Fuel used = distance ÷ fuel efficiency
The estimated fuel cost can then be calculated by multiplying the amount of fuel used by the price per gallon.
Fuel cost = fuel used × fuel price
Fuel Cost Calculator Example
Suppose you are planning a 300-mile trip in a vehicle that gets 25 miles per gallon, and fuel costs $3.50 per gallon.
First, calculate the estimated fuel consumption:
300 ÷ 25 = 12 gallons
Then calculate the estimated fuel cost:
12 × $3.50 = $42.00
The estimated fuel cost for the trip would therefore be approximately $42.
What Is MPG?
MPG stands for miles per gallon. It measures how many miles a vehicle can travel using one gallon of fuel.
A higher MPG generally means the vehicle uses less fuel to travel the same distance.
What Is L/100 km?
Liters per 100 kilometers (L/100 km) is a common fuel-efficiency measurement used outside the United States.
Unlike MPG, a lower L/100 km value generally indicates better fuel efficiency because the vehicle uses fewer liters to travel 100 kilometers.
Fuel Cost per Mile and Kilometer
Understanding your fuel cost per mile or kilometer can make it easier to compare vehicles and estimate the cost of regular commuting.
The calculator provides both cost per mile and cost per kilometer so you can compare fuel expenses using either measurement system.
What Affects Fuel Cost?
Your actual fuel consumption can vary from the vehicle's advertised fuel economy. Factors that can affect fuel consumption include:
- Driving speed
- Traffic and stop-and-go driving
- Vehicle weight
- Tire pressure
- Weather conditions
- Road conditions
- Driving habits
- Air conditioning and heating use
Because of these factors, the result from this calculator should be treated as an estimate rather than an exact prediction of fuel usage.
How to Reduce Fuel Costs
Maintaining your vehicle properly and avoiding unnecessary aggressive acceleration can help improve fuel economy.
Planning routes efficiently and combining trips can also reduce the amount of fuel you use over time.
Frequently Asked Questions
How do I calculate the fuel cost of a trip?
Divide the trip distance by your vehicle's fuel efficiency to estimate the amount of fuel required. Then multiply the fuel used by the price of fuel.
How much fuel will I need for a 300-mile trip?
The amount depends on your vehicle's fuel efficiency. For example, a vehicle getting 25 MPG would use approximately 12 gallons for a 300-mile trip.
How much does a 300-mile trip cost in gas?
The cost depends on fuel efficiency and fuel price. For example, at 25 MPG and $3.50 per gallon, a 300-mile trip would cost approximately $42 in fuel.
Is higher MPG better?
Generally, yes. A higher MPG means a vehicle can travel more miles using the same amount of fuel.
Is lower L/100 km better?
Yes. A lower L/100 km value means the vehicle uses less fuel to travel 100 kilometers.
Is the fuel cost calculator exact?
No. It provides an estimate based on the distance, fuel efficiency, and fuel price you enter. Actual fuel consumption can vary depending on driving and road conditions.