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Kilometers per Gallon (US) to Kilometers per Liter Conversion Calculator: Free Online Tool

Convert kilometers per US gallon to kilometers per liter with our free online fuel consumption converter.

Kilometers per Gallon (US) to Kilometers per Liter Calculator

Kilometers per Gallon (US)
Kilometers per Liter

How to Use the Calculator:

  1. Enter the value you want to convert in the 'From' field (Kilometers per Gallon (US)).
  2. The converted value in Kilometers per Liter will appear automatically in the 'To' field.
  3. Use the dropdown menus to select different units within the Fuel Consumption category.
  4. Click the swap button (⇌) to reverse the conversion direction.

How to Convert Kilometers per Gallon (US) to Kilometers per Liter

Converting Kilometers per Gallon (US) to Kilometers per Liter involves multiplying the value by a specific conversion factor, as shown in the formula below.

Formula:

1 Kilometers per Gallon (US) = 3.78541 kilometers per liter

Example Calculation:

Convert 30 kilometers per US gallon: 30 × 3.78541 = 113.562 kilometers per liter

Disclaimer: For Reference Only

These conversion results are provided for informational purposes only. While we strive for accuracy, we make no guarantees regarding the precision of these results, especially for conversions involving extremely large or small numbers which may be subject to the inherent limitations of standard computer floating-point arithmetic.

Not for professional use. Results should be verified before use in any critical application. View our Terms of Service for more information.

What is a Kilometers per Gallon (US) and a Kilometers per Liter?

Kilometers per Gallon (US), often abbreviated as km/gal (US), is a unit of fuel efficiency. It measures the distance in kilometers (km) that a vehicle can travel using one US liquid gallon (US gal) of fuel. It combines a metric unit of distance with a US customary unit of volume.

Kilometers per Liter (km/L) is a unit of fuel efficiency within the metric system. It quantifies the distance in kilometers that a vehicle can travel for every liter of fuel consumed. A higher value indicates better fuel economy.

Note: The Kilometers per Gallon (US) is part of the metric (SI) system, primarily used globally in science and trade. The Kilometers per Liter belongs to the metric (SI) system.

History of the Kilometers per Gallon (US) and Kilometers per Liter

This unit is not a standard international or US unit for fuel consumption. Its use typically arises in specific, often informal, contexts where metric distances (kilometers) need to be related to fuel volumes measured in US gallons. This might occur when comparing vehicle specifications or fuel data between regions using different systems (e.g., comparing a European car's potential range using US fuel measurements) or during transitions between measurement systems.

The adoption of Kilometers per Liter as a standard measure of fuel efficiency coincided with the widespread global adoption of the metric system for measuring both distance (kilometers) and volume (liters). It provides a direct and intuitive understanding of fuel economy in metric-based societies, contrasting with volume-per-distance measures like L/100km or distance-per-volume using different units like MPG.

Common Uses for kilometers per US gallon and kilometers per liter

Explore the typical applications for both Kilometers per Gallon (US) (metric) and Kilometers per Liter (metric) to understand their common contexts.

Common Uses for kilometers per US gallon

Kilometers per Gallon (US) is rarely used in official vehicle specifications, regulations, or everyday conversation, especially within the United States where Miles per Gallon (US MPG) is the standard. Globally, Liters per 100 kilometers (L/100km) or Kilometers per Liter (km/L) are more common metric standards. Its primary use might be in specific technical calculations, data conversions, or informal comparisons involving US fuel volumes alongside metric distances.

Common Uses for kilometers per liter

  • Vehicle Specifications: Used by manufacturers to state fuel economy in regions using the metric system (e.g., Europe, Japan, India, South America, Australia, Canada).
  • Consumer Comparison: Allows consumers to easily compare the fuel efficiency of different vehicles using a straightforward "distance per unit fuel" metric.
  • Government Regulations: Often used alongside L/100km in government standards and labeling for vehicle fuel economy and emissions.
  • Trip Planning: Helps drivers estimate fuel consumption and costs for journeys based on their vehicle's rating.

Frequently Asked Questions

Questions About Kilometers per Gallon (US) (km/gal (US))

Why is km/gal (US) not commonly used?

The United States primarily uses Miles per Gallon (US MPG) for vehicle fuel efficiency. Most other countries using the metric system prefer Kilometers per Liter (km/L) or Liters per 100 Kilometers (L/100km). Hybrid units like km/gal (US) mix systems and are generally avoided in official standards to prevent confusion.

How does km/gal (US) differ from km/gal (UK)?

The key difference is the gallon size. The US liquid gallon is smaller than the Imperial (UK) gallon (1 US gallon ≈ 3.785 liters, while 1 UK gallon ≈ 4.546 liters). Therefore, for the same actual fuel efficiency, a vehicle's rating in km/gal (US) will be numerically higher than its rating in km/gal (UK) because it travels the same distance using a smaller gallon measure.

How do I convert km/gal (US) to km/L?

Divide the value in km/gal (US) by the exact number of liters in a US gallon: km/L = km/gal (US) / 3.785411784.

How do I convert km/gal (US) to MPG (US)?

Divide the value in km/gal (US) by the exact number of kilometers in a mile: MPG (US) = km/gal (US) / 1.609344.

How do I convert km/gal (US) to the common L/100km format?

Use the inverse relationship formula: L/100km = 378.5411784 / km/gal (US). A higher km/gal (US) value corresponds to a lower L/100km value (indicating better fuel economy).

About Kilometers per Liter (km/L)

Is a higher km/L value better?

Yes, a higher km/L value indicates better fuel efficiency. It means the vehicle can travel more kilometers using the same amount of fuel (one liter).

How do I convert km/L to L/100km?

To convert km/L to Liters per 100 kilometers (L/100km), divide 100 by the km/L value: L/100km = 100 / km/L. Note that for L/100km, a lower value indicates better fuel efficiency.

How do I convert km/L to MPG (US)?

To convert km/L to US Miles Per Gallon (MPG), multiply the km/L value by approximately 2.352: MPG (US) ≈ km/L * 2.352.

How do I convert km/L to MPG (Imperial)?

To convert km/L to Imperial Miles Per Gallon (MPG), used in the UK, multiply the km/L value by approximately 2.825: MPG (Imperial) ≈ km/L * 2.825.

Conversion Table: Kilometers per Gallon (US) to Kilometers per Liter

Kilometers per Gallon (US) (km/gal (US))Kilometers per Liter (km/L)
10.264
51.321
102.642
256.604
5013.209
10026.417
500132.086
1,000264.172

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