UnitsConverter.io

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

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

Miles per Gallon (US) to Kilometers per Liter Calculator

Miles per Gallon (US)
Kilometers per Liter

How to Use the Calculator:

  1. Enter the value you want to convert in the 'From' field (Miles 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 Miles per Gallon (US) to Kilometers per Liter

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

Formula:

1 Miles per Gallon (US) = 0.425144 kilometers per liter

Example Calculation:

Convert 30 miles per US gallon: 30 × 0.425144 = 12.7543 kilometers per liter

Common Conversion Scenarios:

  • Vehicle Comparison: A car rated at 30 MPG (US) achieves approximately 12.7543 km/L.

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 Miles per Gallon (US) and a Kilometers per Liter?

Miles per Gallon (US), often abbreviated as MPG (US) or simply MPG in the US context, is a unit of fuel efficiency used primarily within the United States customary system. It quantifies the distance in miles that a vehicle can travel using one US gallon of fuel. A higher MPG (US) value indicates better fuel efficiency.

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 Miles per Gallon (US) is part of the imperial/US customary system, primarily used in the US, UK, and Canada for everyday measurements. The Kilometers per Liter belongs to the metric (SI) system.

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

MPG based on the US customary gallon (approximately 3.785 liters) became the standard measure for vehicle fuel economy in the United States many decades ago. Its prominence was solidified by government regulations, particularly the Corporate Average Fuel Economy (CAFE) standards established in the 1970s and enforced by the Environmental Protection Agency (EPA). The EPA mandates MPG testing and reporting for all new vehicles sold in the US.

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 miles per US gallon and kilometers per liter

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

Common Uses for miles per US gallon

  • Official Vehicle Ratings: The primary unit used by the EPA for reporting official city, highway, and combined fuel economy figures for new vehicles sold in the US.
  • Window Stickers (Monroney Label): Displayed prominently on the mandatory window stickers of new cars, allowing consumers to compare efficiency at the point of sale.
  • Consumer Comparison: Widely used by American consumers to compare the fuel efficiency and potential running costs of different vehicles.
  • Vehicle Advertising: Frequently highlighted in car advertisements and marketing materials within the US.
  • Informal Benchmarking: The common unit used in everyday conversation about car fuel efficiency in the US.

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 Miles per Gallon (US) (MPG (US))

Is a higher MPG (US) value better?

Yes, a higher MPG (US) value signifies better fuel efficiency. It means the vehicle can cover more miles for each US gallon of fuel consumed.

How is MPG (US) different from MPG (UK)?

The main difference lies in the definition of the gallon. The US customary gallon (approx. 3.785 liters) is smaller than the Imperial gallon (UK, approx. 4.546 liters). Because the UK gallon is larger, a vehicle will travel further on one UK gallon than on one US gallon, resulting in a higher MPG (UK) figure compared to the MPG (US) figure for the same vehicle. Specifically, 1 MPG (UK) ≈ 1.201 MPG (US), or conversely, 1 MPG (US) ≈ 0.833 MPG (UK).

How do I convert MPG (US) to L/100km?

To convert US Miles Per Gallon to Liters per 100 kilometers (a common metric unit where lower is better), use the formula: L/100km ≈ 235.21 / MPG (US).

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

To convert US Miles Per Gallon to Kilometers per Liter (a metric unit where higher is better), use the formula: km/L ≈ MPG (US) * 0.42514.

How do I convert MPG (US) to MPG (UK)?

To convert US Miles Per Gallon to Imperial Miles Per Gallon, use the formula: MPG (UK) ≈ MPG (US) * 1.20095.

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: Miles per Gallon (US) to Kilometers per Liter

Miles per Gallon (US) (MPG (US))Kilometers per Liter (km/L)
10.425
52.126
104.251
2510.629
5021.257
10042.514
500212.572
1,000425.144

All Fuel Consumption Conversions

Miles per Gallon (US) to Miles per Gallon (UK)Miles per Gallon (US) to Liters per 100 KilometersMiles per Gallon (US) to Miles per LiterMiles per Gallon (US) to Kilometers per Gallon (US)Miles per Gallon (US) to Kilometers per Gallon (UK)Miles per Gallon (UK) to Miles per Gallon (US)Miles per Gallon (UK) to Kilometers per LiterMiles per Gallon (UK) to Liters per 100 KilometersMiles per Gallon (UK) to Miles per LiterMiles per Gallon (UK) to Kilometers per Gallon (US)Miles per Gallon (UK) to Kilometers per Gallon (UK)Kilometers per Liter to Miles per Gallon (US)Kilometers per Liter to Miles per Gallon (UK)Kilometers per Liter to Liters per 100 KilometersKilometers per Liter to Miles per LiterKilometers per Liter to Kilometers per Gallon (US)Kilometers per Liter to Kilometers per Gallon (UK)Liters per 100 Kilometers to Miles per Gallon (US)Liters per 100 Kilometers to Miles per Gallon (UK)Liters per 100 Kilometers to Kilometers per LiterLiters per 100 Kilometers to Miles per LiterLiters per 100 Kilometers to Kilometers per Gallon (US)Liters per 100 Kilometers to Kilometers per Gallon (UK)Miles per Liter to Miles per Gallon (US)Miles per Liter to Miles per Gallon (UK)Miles per Liter to Kilometers per LiterMiles per Liter to Liters per 100 KilometersMiles per Liter to Kilometers per Gallon (US)Miles per Liter to Kilometers per Gallon (UK)Kilometers per Gallon (US) to Miles per Gallon (US)Kilometers per Gallon (US) to Miles per Gallon (UK)Kilometers per Gallon (US) to Kilometers per LiterKilometers per Gallon (US) to Liters per 100 KilometersKilometers per Gallon (US) to Miles per LiterKilometers per Gallon (US) to Kilometers per Gallon (UK)Kilometers per Gallon (UK) to Miles per Gallon (US)Kilometers per Gallon (UK) to Miles per Gallon (UK)Kilometers per Gallon (UK) to Kilometers per LiterKilometers per Gallon (UK) to Liters per 100 KilometersKilometers per Gallon (UK) to Miles per LiterKilometers per Gallon (UK) to Kilometers per Gallon (US)

Other Units from Fuel Consumption