How to Calculate the Mileage of a Car

Posted:

23 September,2024

Updated:

23 September,2024

0 min read

Every driver and vehicle owner needs to understand how to calculate the mileage of a car. Knowing your car’s fuel efficiency can help you plan your journeys better, whether it’s a road trip or a trip to the petrol bunk. Calculating your car's mileage, or how far it travels on a single litre of fuel, can also help you maintain your vehicle better and save money in the long run.

car mileage calculation process explained

What is Mileage?

Car mileage is the number of kilometres a car can travel using one litre of fuel. Understanding how to calculate car mileage is a way to assess how fuel-efficient the car is and gives insight into how the vehicle performs.
 

Your car's mileage can change based on driving conditions, how you drive, how well you keep up with maintenance, and what kind of fuel you use. Driving on the highway usually gives you better mileage than in the city because of fewer stops and starts. The condition of your car tyres and how much air is in them can also make a difference. Even the weather can affect how far the car can take you for each litre of fuel.
 

Why is Calculating Car Mileage Important?

Calculating your car's mileage goes beyond simply playing with numbers. It's a practical way to monitor fuel consumption and catch any problems early on. Here's why it's so important:

1. Fuel efficiency monitoring: Understanding how to check the mileage of your car helps you optimise fuel consumption and adjust your driving accordingly.
 

2. Budgeting: Fuel is a crucial commodity with fluctuating prices in the Indian market. Calculating your mileage will help you plan your trips and budget for fuel costs better.
 

3. Environmental responsibility: A car with good mileage is fuel-efficient and produces lower carbon emissions, contributing to a greener and cleaner environment.
 

4. Resale value: Well-maintained cars have better mileage, and this could fetch you a better price if you plan on selling your car.

 

Step-by-Step Guide to Calculate Car Mileage

Here’s how to calculate the mileage of your car using a simple method.

1. Fill up your fuel tank to full capacity. Note down the odometer reading after doing so. 
 

2. Drive your car as you would routinely. For more accurate results, try driving on both the highway and inside the city.
 

3. After driving around until your fuel tank is nearly empty, refill it. Note down how many litres of fuel have been consumed.
 

4. Check the odometer to see how many kilometres you have travelled before refuelling.
 

5. Calculate the mileage of your car with the formula given below.

 

Formula to Calculate Car Mileage

The standard mileage calculation formula is: Mileage = Distance travelled ÷ Fuel consumed

For example, if you have driven 150 kilometres and consumed 10 litres of petrol, your car's mileage would be 15 km/litre.

 

ARAI-Rated Mileage Figures vs. Real-World Mileage Figures

The Automotive Research Association of India (ARAI) provides mileage estimates for motor vehicles in controlled conditions. Nevertheless, real-world mileage can often be lower due to factors like traffic, road conditions, and individual driving habits. For example, a car that is rated to achieve 20 km/l by ARAI may only manage 15-18 km/l in everyday use.

 

This discrepancy arises because ARAI tests exclude variables such as stop-and-go traffic, frequent braking, heavy loads, and air conditioner usage—things that are common on Indian roads. These factors reduce fuel efficiency significantly.

 

ARAI figures are helpful when comparing cars and deciding which one to buy. However, it is important to understand that real-world conditions typically result in lower mileage.

 

Tips to Improve Car Mileage

Improving your car’s mileage means extending its life and utility. Here are a few tips to improve car mileage, especially in Indian driving conditions:

1. Maintain proper tyre pressure: If your tyres are under-inflated, your fuel consumption will increase. Checking tyre pressure regularly is recommended.
 

2. Regular servicing: Your car will run efficiently with timely air filter replacements, oil changes, engine check-ups, and other regular maintenance services.
 

3. Drive smoothly: Avoid frequent breaking, rapid acceleration, and high-speed driving, as this increases fuel consumption as well.
 

4. Reduce idle time: Avoid letting your car be idle with the engine running for long periods. Modern cars use minimal fuel when turned off and restarted, but reducing idle time is still recommended for better mileage.
 

5. Lighten the load: When your car carries a heavier load than usual, it can strain the engine and reduce fuel efficiency.

 

Summing Up

Knowing how to calculate your car's mileage isn't just about saving on fuel costs; it is also about understanding your vehicle better. This knowledge enables you to drive more smartly and take better care of your car, especially when fuel prices vary widely, as in India. These small efforts can result in significant long-term savings.

 

At Shriram Car Insurance, we prioritise efficiency. Our Car Insurance plans are affordable and convenient, and we have a range of add-ons to customise your policy. With Shriram General Insurance, you can confidently embark on that cross-country road trip with your family, knowing you are fully protected!

 

FAQs

1. How can I calculate the mileage of my car?

To calculate the mileage, follow this simple process: fill up your fuel tank, drive a significant distance, refill the tank, and divide the kilometres travelled by the fuel used.

 

2. What is the best way to improve car mileage?

You can improve mileage by maintaining proper tyre pressure, reducing heavy loads, driving smoothly, and minimising AC use. Regular vehicle maintenance, such as timely oil changes, enhances fuel efficiency.

 

3. What is the difference between city and highway mileage?

City mileage tends to be lower due to frequent stops and starts, while highway mileage is typically higher as driving is smoother and more consistent.

 

4. Does driving at higher speeds reduce mileage?

Yes, driving at high speeds increases air resistance and fuel consumption, reducing overall mileage. Sticking to moderate speeds helps maximise fuel efficiency.

Save up-to the 85% off on your car Insurance

Save up-to 85% off on your Car Insurance

Save up-to the 85% off on your car Insurance

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