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Fuel Economy Converter

Convert Miles per Gallon (US) to Liters per 100 Kilometers.

Input the value of miles per gallon (us) below to convert instantly to liters per 100 kilometers with standard conversions, definitions, and equations.

Fuel Economy Converter
mpg
L/100km
235.215 / MPG (US) = L/100km Miles per Gallon is an inverse measurement. Divide 235.215 by the value.

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Overview

About converting miles per gallon (us) to liters per 100 kilometers

US MPG to liters per 100 km converts American fuel-economy ratings into the metric consumption figure used across Europe and much of the world.

This is an inverse conversion: MPG measures distance per fuel, while L/100km measures fuel per distance, so you divide rather than multiply. The relationship is L/100km = 235.215 ÷ MPG. A 30 MPG car uses 7.84 L/100km, and a 40 MPG car uses 5.88 L/100km.

Because the two metrics run in opposite directions, a higher MPG is good but a lower L/100km is good. That inversion is what makes the conversion feel counterintuitive — doubling your MPG halves your L/100km, not the other way around.

Practical Tips
  • Formula to memorize: 235.215 ÷ MPG = L/100km.
  • Higher MPG = better; lower L/100km = better. They move in opposite directions.

How to Convert Miles per gallon (US) to Liters per 100 kilometers

To convert miles per gallon (us) to liters per 100 kilometers, we use the official conversion formulas. Below is the mathematical formula, plain-English explanation, and a worked example.

mpg-us-to-l-per-100km-formula.py
# Mathematical Formula
235.215 / MPG (US) = L/100km
# Worked Example (5 mpg)
235.215 / 5 = 47.0430 L/100km
What is a Miles per Gallon (US)?

Miles per Gallon (US) (mpg)

Fuel efficiency standard in the US, miles traveled per US liquid gallon.

What is a Liters per 100 Kilometers?

Liters per 100 Kilometers (L/100km)

Metric consumption metric. Fuel volume required to drive 100 kilometers (lower is more efficient).

Miles per Gallon (US) to Liters per 100 Kilometers Conversion Table

Miles per Gallon (US) (mpg) Liters per 100 Kilometers (L/100km)
1 mpg 235.21458 L/100km
2 mpg 117.60729 L/100km
3 mpg 78.40486 L/100km
5 mpg 47.04292 L/100km
10 mpg 23.52146 L/100km
15 mpg 15.68097 L/100km
20 mpg 11.76073 L/100km
25 mpg 9.40858 L/100km
50 mpg 4.70429 L/100km
100 mpg 2.35215 L/100km
250 mpg 0.94086 L/100km
500 mpg 0.47043 L/100km
1000 mpg 0.23521 L/100km

Liters per 100 Kilometers to Miles per Gallon (US) Conversion Table

Liters per 100 Kilometers (L/100km) Miles per Gallon (US) (mpg)
1 L/100km 235.21458 mpg
2 L/100km 117.60729 mpg
3 L/100km 78.40486 mpg
5 L/100km 47.04292 mpg
10 L/100km 23.52146 mpg
15 L/100km 15.68097 mpg
20 L/100km 11.76073 mpg
25 L/100km 9.40858 mpg
50 L/100km 4.70429 mpg
100 L/100km 2.35215 mpg
250 L/100km 0.94086 mpg
500 L/100km 0.47043 mpg
1000 L/100km 0.23521 mpg
Questions

Frequently Asked Questions

How do I convert miles per gallon (us) to liters per 100 kilometers?

Multiply the value in miles per gallon (us) by the conversion factor 235.214584. For example, to convert 5 miles per gallon (us) to liters per 100 kilometers: 5 × 235.214584 = 1176.0729 L/100km.

What is the conversion factor from miles per gallon (us) to liters per 100 kilometers?

The conversion factor is 235.214584. One miles per gallon (us) is equal to 235.214584 liters per 100 kilometers.

What is the reverse conversion from liters per 100 kilometers to miles per gallon (us)?

To convert liters per 100 kilometers back to miles per gallon (us), multiply by 235.214584 (or divide the value by 235.214584). One liters per 100 kilometers is equal to 235.214584 miles per gallon (us).

How do you convert L/100km to MPG?

Divide 235.215 by the L/100km value to get US MPG. For example, 8 L/100km is 235.215 / 8 = 29.4 MPG.

Why is Liters per 100 km inverse?

Most efficiency units calculate distance per fuel unit (e.g. km/L). L/100km calculates fuel consumed per fixed distance (consumption instead of efficiency).

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