Calculator Use
Calculate fuel economy in automobiles in US or Metric units. Calculate vehicle fuel economy in mpg US (miles per US gallon), mpg Imp (miles per Imperial gallon), km/l (kilometers per liter) or fuel consumption in l/100km (liters per 100 kilometers). Equivalent fuel economy/efficiency ratings are converted and shown for all units, mpg US, mpg Imp, km/l and l/100km.
- mpg = miles per gallon
- mpg US = miles per United States gallon
- mpg Imp = miles per Imperial gallon
- km/l = kilometers per liter
- l/100km = liters per 100 kilometers
- Odometer Readings
- Calculate gas mileage by odometer readings: enter your starting and ending odometer readings and the amount of fuel used for the trip.
- Trip Distance
- Calculate gas mileage using trip distance: enter total distance and the amount of fuel used for the trip.
- Price per Gallon or Liter
- Enter the fuel price per gallon or per liter and the calculator will calculate:
-Fuel Rate - fuel cost per mile or kilometer
-Fuel Total - the total spent on fuel for the trip - Price per Mile or Kilometer
- Enter the cost per mile or kilometer. This might be the cost of a rental or the amount you can deduct on taxes. The calculator will calculate your trip cost based on your total distance.
How to Calculate Miles per Gallon or Kilometers per Liter
When you calculate miles/gallon (mpg) or kilometers/liter (km/l) you are calculating fuel economy in terms of distance per unit volume or distance/volume. The following outline is generally applicable to both calculations. When you calculate liters per 100 kilometers (l/100km) you are calculating volume per 100 units of distance.
If you track your gas usage you can evaluate your vehicle's fuel economy. This is how to calculate your mpg or your km/l yourself.
- Fill up your tank with fuel before you start a long trip or the block of time you want to track. For example, you may just want to track your weekly gas usage.
- Record the trip starting odometer reading at the time you fill up.
- At the end of your trip or week, fill up your tank again.
- Record the number of gallons or liters required to fill the tank once again. This is the total number of gallons or liters you used for the trip (or the time period).
- Record the trip ending odometer reading (this might also be the starting reading for your next trip).
- Calculate your actual miles or kilometers
- Ending Odometer Reading minus Starting Odometer Reading equals miles or kilometers traveled
- End - Start = Miles or Kilometers traveled
- Calculate your rate of gas usage ( mpg or km/l )
- Miles driven ÷ gallons used = miles per gallon = mpg
- Kilometers driven ÷ liters used = kilometers per liter = km/l
Gas Rate (or Fuel Rate)
What is it costing you in gas per mile? Enter the price per gallon. Gas rate = price per gallon divided by miles per gallon = price per mile.
What is it costing you in fuel per kilometer? Enter the price per liter. Fuel rate = price per liter divided by kilometers per liter = price per kilometer.
Mileage Rate (or Kilometer Rate)
Entera price per mile or price per kilometer to calculate the total charge incurred on this trip. This may be helpful for expense, tax deductions or lease-related calculations; in some situations you will be given or allowed a cost per unit mile or kilometerto cover the expense of using a vehicle.
How to Calculate Liters per Kilometers (l/100km)
When you calculate liters per 100 kilometers (l/100km) you are calculating volume per 100 units of distance, or fuel consumption rate.
- Fill up your tank with fuel before you start a long trip or the block of time you want to track.
- Record the trip starting odometer reading at the time you fill up.
- At the end of your trip, fill up your tank again.
- Record the number of liters required to fill the tank. This is the total number of liters you used for the trip.
- Record the trip ending odometer reading (this might also be the starting reading for your next trip).
- Calculate your actual kilometers
- Ending Odometer Reading minus Starting Odometer Reading equals total kilometers
- End - Start = Kilometers
- Calculate your rate of fuel usage (l/100km)
- 100 * liters used ÷ kilometers driven = liters per 100 kilometers = l/100km
FAQs
The easiest way to calculate your gas mileage is to simply divide the number of miles traveled by the number of gallons of gas your vehicle took to refill. In sum, that's miles driven divided by gallons of gas used.
How do I calculate the gas cost for a trip? ›
Calculate the overall gas cost of your trip
First, divide the distance of the route by your miles per gallon figure to discover how many gallons of gas you will need, then multiply the number of gallons by the price of gas.
How to calculate fuel cost per mile? ›
How do you calculate fuel cost per mile? You can find the fuel cost per mile by taking the current per-gallon price of gas and dividing it by your vehicle's miles per gallon. This means you spend 14 cents on fuel for every mile that you travel in your vehicle.
How do you calculate km per Litre? ›
Kilometres per litre fuel economy calculator
Divide the kilometres travelled by the amount of litres it took to refill the tank.
What is my car's miles per gallon? ›
When you next fill up, note the mileage driven. Fill the tank again and note the number of litres put in. Divide the number of miles driven by the amount of fuel used in litres (miles per litre) To convert the figure to miles per gallon multiply it by 4.544.
How to calculate car mileage? ›
The mileage of a car is how much distance it runs in one litre of fuel. To calculate the mileage of your car, divide the number of kms the car ran with the amount of fuel you filled the second time. After calculating the mileage you are ready to sell your car, or purchase a car at the right price.
Is there an app to calculate gas for a trip? ›
Introducing Roadtrip - Your Free Gas Calculator! Discover stress-free budgeting & seamless travel planning with Roadtrip - the ultimate app for calculating expenses on your car journey from A to B, tailored to your car model!
How many gallons of gas per mile? ›
Broadly speaking, most modern cars can drive 20 to 35 miles on a single gallon of gas. Indeed, this is about how many miles you have left when the gas light comes on in your car.
How to calculate gas usage? ›
How to convert gas units to kWh
- Take a meter reading, then subtract the previous meter reading from the new meter reading to work out the volume of gas used.
- Multiply by volume correction factor (1.02264).
- Multiply by calorific value (40.0).
- Divide by kWh conversion factor (3.6).
Use the formula: Cost per mile = Total Expenses / Total Miles Covered to determine the CPM. Remember that this calculation may include only some of the unique factors in your delivery operations. Consider additional expenses, such as vehicle repairs or specific delivery requirements.
Final answer: With $15 of gas money, assuming the current price for gasoline is $3.25 per gallon and your car gets an average of 27 miles per gallon, you can travel roughly 125 miles.
How many miles are in 1 gallon? ›
How far does 1 gallon of gas get you? - Quora. The average US passenger vehicle get 25 miles per gallon. That varies two-fold for a particular vehicle - a Prius gets 50 mpg while a Suburban or F-350 (used to get one person to the store to pick up one bag of groceries) gets 12–13 mpg.
How to calculate fuel consumption for a trip? ›
How do I calculate fuel consumption per 100 km? To calculate fuel consumption per 100 km, divide the amount of fuel used in liters by the distance in kilometers and multiply the product by 100. If you want to find the fuel consumption per 10 km, perform the same first step but multiply the product by 10 instead of 100.
How to compute gas consumption? ›
The easiest way to calculate your gas mileage is to simply divide the number of miles traveled by the number of gallons of gas your vehicle took to refill. In sum, that's miles driven divided by gallons of gas used.
How many gallons per mile is a liter per 100 km? ›
1 liter per 100 km is equal to 235.214583 miles per gallon. Need to convert reverse fuel consumption units? Convert MPG to l/100km.
What is the formula for gas usage? ›
Take a meter reading, then subtract the previous meter reading from the new meter reading to work out the volume of gas used. Multiply by volume correction factor (1.02264). Multiply by calorific value (40.0). Divide by kWh conversion factor (3.6).
How do I calculate my mileage rate? ›
Let's say an employee drove 200 miles for business using their personal vehicle. In this scenario, let's also assume the company is using the 2024 standard IRS mileage rate of 67 cents per mile. Below is a simple reimbursem*nt calculation using this rate: reimbursem*nt amount = miles * rate.
How to calculate gallons of gas used? ›
Add up the number of gallons or liters of fuel that you bought. This represents the total amount of gas that you used over this period of time. If you filled up 3 times, once using 12 gallons, the other 3 gallons, and the last time using 10 gallons, your total gas usage is 25 gallons.
