The conversion of 30 miles per gallon (mpg) to litres per 100 kilometers (L/100km) results in approximately 7.84 litres. This means that driving a vehicle with a fuel efficiency of 30 mpg uses about 7.84 litres of fuel to cover 100 kilometers.
To convert mpg to litres per 100 km, you need to understand that miles and gallons are imperial units, while litres and kilometers are metric. The conversion involves multiplying the mpg value by a factor derived from these units. Specifically, 1 mpg equals approximately 0.4251 litres per km, so converting involves adjusting for this factor.
Conversion Result for 30 mpg
30 mpg is approximately equal to 7.84 litres per 100 km.
Conversion Tool
Result in litres:
Conversion Formula
The formula to convert mpg to litres per 100 km is: litres per 100 km = 235.2 / mpg. This works because 1 mile equals 1.609 km and 1 gallon equals 3.785 litres. When you divide 235.2 by mpg, you’re calculating how many litres are consumed per 100 km, based on miles per gallon.
For example, with 30 mpg: 235.2 / 30 = 7.84 litres per 100 km. The numerator 235.2 comes from multiplying 100 km by the conversion factors for miles to km and gallons to litres, simplifying the calculation into a single division.
Conversion Example
- Suppose you want to convert 20 mpg to litres per 100 km.
- Using the formula: 235.2 / 20 = 11.76 litres per 100 km.
- Steps:
- Identify mpg value: 20 mpg.
- Apply formula: 235.2 divided by 20.
- Calculate: 235.2 / 20 = 11.76.
- Result: 20 mpg equals approximately 11.76 litres per 100 km.
- Similarly, for 50 mpg: 235.2 / 50 = 4.704 litres per 100 km.
- For 10 mpg: 235.2 / 10 = 23.52 litres per 100 km.
- And for 40 mpg: 235.2 / 40 = 5.88 litres per 100 km.
Conversion Chart
| mpg | litres per 100 km |
|---|---|
| 5.0 | 47.04 |
| 10.0 | 23.52 |
| 15.0 | 15.68 |
| 20.0 | 11.76 |
| 25.0 | 9.41 |
| 30.0 | 7.84 |
| 35.0 | 6.72 |
| 40.0 | 5.88 |
| 45.0 | 5.23 |
| 50.0 | 4.70 |
| 55.0 | 4.28 |
This chart helps comparing mpg values with litres per 100 km. To use it, find your mpg value in the first column, then look across to see the equivalent fuel consumption in litres per 100 km.
Related Conversion Questions
- How many litres per 100 km is 30 mpg?
- What is the litre equivalent of 30 miles per gallon?
- Convert 30 mpg to litres per 100 km for fuel efficiency comparison?
- How do I convert mpg to litres for different vehicle types?
- Is 30 mpg considered fuel-efficient in litres per 100 km?
- What formula do I use to change mpg into litres per 100 km?
- Can I use the same conversion method for other mpg values?
Conversion Definitions
mpg
mpg stands for miles per gallon, a measure of how many miles a vehicle can travel using one gallon of fuel, based on imperial units. It reflects fuel efficiency, with higher mpg indicating less fuel consumption per mile.
litres
Litres are metric units of volume measurement used for liquids like fuel. One litre equals 1,000 cubic centimeters, and it is used globally to quantify fuel quantities, with conversions necessary when comparing to imperial units like gallons.
Conversion FAQs
How accurate is the 235.2 divided by mpg formula for converting mpg to litres per 100 km?
This formula is highly accurate as it directly stems from the conversion factors between miles, kilometers, gallons, and litres. It simplifies the calculation into a single division, providing precise results for any mpg value.
Why does converting mpg to litres per 100 km matter for drivers outside the US?
Many countries use the metric system, so understanding fuel consumption in litres per 100 km helps drivers compare vehicle efficiency across different regions. It allows better planning for fuel costs and vehicle performance evaluations.
Can I convert litres per 100 km back to mpg using a similar formula?
Yes, reversing the process involves using the formula mpg = 235.2 / litres per 100 km, allowing conversion from metric consumption figures back into miles per gallon for imperial-based measurements.
What are typical fuel consumption ranges for cars in litres per 100 km?
Most vehicles consume between 4 to 10 litres per 100 km, with efficiency depending on vehicle size, engine type, and driving conditions. Higher values indicate lower fuel efficiency, while lower values suggest better fuel economy.
How does driving style affect the mpg to litres per 100 km conversion?
Driving habits impact fuel efficiency, affecting the actual mpg and thus the litres per 100 km calculation. Aggressive acceleration, high speeds, or heavy loads can increase fuel consumption, making the conversion useful for real-world comparisons.