MPG Calculator

An MPG Calculator helps you determine your car's fuel consumption per gallon. Planning a trip? Find out how many miles per gallon your vehicle gets before you hit the road. Whether you want to track your gas mileage over a specific distance or estimate fuel usage, our MPG Calculator makes it quick and easy.

What is MPG (miles per gallon)?

“MPG is the primary measurement of a car’s fuel efficiency during travelling”

In simple, we can say that MPG is the distance covered by a car per gallon of fuel and measured in miles. The car’s MPG is higher, the more fuel-efficient will be it.You can check the fuel efficiency of the vehicle by the Gas Calculator.

How to calculate MPG?

Generally, official fuel economy data can be calculated based on WLTP testing (Worldwide Harmonised Light Vehicle Test Procedure). This is accomplished in a lab to simulate real-world driving techniques. If you are curious to find out the actual MPG of your current car is performing, the wide range of new cars will give you an option to read out its current MPG on the driver’s display system.

Formula:

To calculate the fuel efficiency of a car:

Imperial System:

\( \text{MPG} = \frac{\text{distance (miles)}}{\text{average gas consumption (gallons)}} \)

Metric System:

\( \text{Fuel Efficiency} = \frac{\text{distance (km)}}{\text{average gas consumption (litres)}} \times 100 \)

Example: Calculating Miles Per Gallon (MPG)

A car has a fuel tank with 1 gallon of petrol and returns 70 MPG. This means the car can travel:

\( \text{Distance} = \text{MPG} \times \text{Fuel in gallons} = 70 \times 1 = 70 \ \text{miles} \)

It’s easier to use an online MPG calculator for instant and precise results.

Solved Example:

A car covers 14 km using 5 litres of fuel. Fuel price is $60 per litre. Calculate the MPG.

Given:

• Distance = 14 km
• Fuel used = 5 litres
• Fuel price = $60 per litre

Solution:

Convert litres to US gallons (1 US gallon ≈ 3.785 litres):

\( \text{Fuel in gallons} = \frac{5}{3.785} \approx 1.32 \ \text{gallons} \)

Convert distance from km to miles (1 km ≈ 0.621371 miles):

\( \text{Distance in miles} = 14 \times 0.621371 \approx 8.70 \ \text{miles} \)

Calculate MPG:

\( \text{MPG} = \frac{\text{Distance in miles}}{\text{Fuel in gallons}} = \frac{8.70}{1.32} \approx 6.59 \ \text{MPG} \)

Calculate fuel cost per gallon:

\( \text{Fuel cost per gallon} = 1.32 \times 60 \approx 79.2 \ \$ \)

How does the MPG calculator work?

Our online miles per gallon calculator is friendly to users, you can make the calculations on the basis of the number of kilometres covered by the distance and the average consumption of fuel easily. Let’s find out how!

Input:

First of all, select the parameter you want to calculate i.e., simple or advanced For simple calculations enter the values of the following:

• Distance with various units
• Fuel used with various units
• Fuel economy with various units

For advanced calculations:

• Enter the values of trip start to trip end
• Fuel use in various units
• Fuel price in various units

Now hit the “calculate” button and wait for a second.

Output:

The mile per gallon calculator determines the following results:

• Distance in units
• Fuel economy in unit
• Cost of petrol or diesel

FAQ’s

What is a good MPG?

A good MPG mainly depends on the type of car and fuel type, but it is always said that the higher the number, the MPG will better.

Can my driving style affect my car’s MPG?

Whether your driving style has a major effect on your MPG. Smoother driving tends to have a higher figure of MPG, on the other hand, jerky reactions and aggressive acceleration will have a lower figure of MPG value.

Is 42 MPG good?

No, the accepted standard MPG consumes around about 8.1 to 7.1 litres per 100km (around 60 miles) (35-40mpg) in the past to more like 5.6 to 5.1 litres (50-55mpg)

Are 31 miles per gallon good?

Yes, commonly a normal petrol engine has old gasoline and no advanced electric motors. Example: Prius gets around 60 mpg, but sometimes it gets at least 30 mpg which might classify as good.

What car has the best MPG?

Most Fuel-Efficient Midsized Cars are given below in the table:

Does any car get 50 MPG?

Despite advances in technology, modern cars achieving around 50 MPG in EPA testing are still rare. Most of these vehicles do not rely solely on gallons of fuel; instead, they use electricity or alternative fuels to achieve high efficiency.

What car gets 65 MPG?

The Ford ECOnetic Fiesta is an example of a modern car that can reach 65 MPG.

Are 25 miles per gallon good?

For modern cars, a practical rule of thumb is that 23 MPG combined (city + highway) is considered the minimum for acceptable fuel efficiency.

Is it possible to get 70 MPG?

Currently, a 60–70 MPG range is ideal for modern fuel-efficient cars. However, cars achieving 70–80 MPG typically include advanced hybrid systems, improved sound insulation, and extra surge and response from powerful engines.

What is a good MPG for a used car?

For everyday car use, a good MPG is generally considered at least 35 MPG. As a reference, the average MPG for cars in 2020 was approximately 25.7 MPG.

Conclusion:

While you are purchasing a vehicle, it is crucial to know about the MPG of the vehicle. It tells you how many miles to the gallon in the vehicle are needed. If you want to calculate the MPG of your vehicle, we suggest you use our MPG Calculator to proceed with calculations. Moreover, you can also determine how much you will spend on fuel at different price levels that depend on how much distance is covered on a regular basis.

References:

From the source of Carwow: What is MPG in cars?  MPG meaning, Are MPG figures realistic?

From the source of Car Driver: MPG Meaning: Everything You Need to Know, What Is MPG?, How Is Fuel Economy Calculated?