# Fuel Consumption Calculator

*“WorldAtlas“*(October 6th 2017)

This **fuel consumption calculator** will help you estimate the amount of fuel a vehicle consumes at particular distances like 100 km, 10 km, and miles, to name a few, which we commonly use in determining fuel or gas consumption. In this calculator, you will learn:

- What fuel consumption is;
- How to use this fuel consumption calculator; and
- How to calculate the fuel consumption of a vehicle.

Keep on reading to start learning.

## What is fuel consumption?

When we travel by land using a fuel-powered vehicle, we either spend too much on fuel or don't really care about it (talk about life goals). However, for most of us who want to **budget our travels**, knowing our vehicle's fuel or gas consumption from a recent long trip can help us plan our future rides better.

**Fuel consumption** is a measure of how efficiently a vehicle uses up fuel, comparable to fuel economy (or fuel efficiency). Fuel economy quantifies a car's efficiency by how far a vehicle travels using a particular amount of fuel, i.e., in miles per gallon (MPG) or kilometers per liter (kmpl). On the other hand, **fuel consumption tells us how much fuel a vehicle burns fuel at a certain distance**, e.g., in `liters per kilometer`

`(L/km)`

or `liters per 100 kilometers`

`(L/100km)`

.

## How to calculate the fuel consumption of a vehicle

Let's say we want to know a vehicle's fuel consumption that consumes two full tanks, in this case, `100 liters`

, to travel a total distance of `1320 km`

from France to Italy with some detours. To find the fuel consumption of this vehicle, we can substitute our known parameters in this fuel consumption formula to have:

From our calculation, we found that the vehicle consumes 0.07576 liters of fuel per kilometer. For a better perspective, we can convert it to the more typical unit of liters per 100 kilometers by multiplying our calculated value by $100 \text{km}/100 \text{km}$, as shown below:

Now that is easier to imagine. 🙂

💡 Consequently, if you know the fuel efficiency of your vehicle, you can simply take its reciprocal to find your vehicle's fuel consumption, as shown in this fuel consumption formula:

$\scriptsize{\text{Fuel consumption} = \frac{1}{\text{Fuel efficiency}}}$

## How to use this fuel consumption calculator

For faster fuel or gas consumption calculation, you can use our calculator by **entering** the **distance traveled** and the **fuel used** to determine the fuel consumption instantly.

You can also use our fuel consumption calculator in `Advance mode`

to display the equivalent **fuel efficiency** of your vehicle and to **enter the fuel price** to calculate your total **trip cost** in terms of fuel.

## Other related calculator

If you want to learn more about fuel usage of vehicles, particularly regarding the economy of consuming fuel, here is a list of our other fuel and gas consumption calculators you can check out:

## FAQ

### How do I calculate fuel cost per mile?

To calculate fuel cost per mile, say a vehicle traveled **45 miles** and used **1.75 US gallons of fuel**:

- First,
**determine the fuel consumption**by dividing the fuel used by the distance traveled:`1.75 US gallons ÷ 45 miles =`

.`0.03889 gal/mi (US)`

- Then,
**multiply the fuel consumption by the fuel price**, say**$8 per US gallon**. We then have`0.03889 gal/mi (US) × $8 per US gallon = $0.31111/mi ≈`

.`$0.31/mi`

### 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.