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

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

Miles per Gallon (UK) to Miles per Liter Calculator

Miles per Gallon (UK)
Miles per Liter

How to Use the Calculator:

  1. Enter the value you want to convert in the 'From' field (Miles per Gallon (UK)).
  2. The converted value in Miles 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 (UK) to Miles per Liter

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

Formula:

1 Miles per Gallon (UK) = 0.569718 miles per liter

Example Calculation:

Convert 30 miles per UK gallon: 30 × 0.569718 = 17.0915 miles 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 Miles per Gallon (UK) and a Miles per Liter?

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

Miles per Liter (mi/L) is a hybrid unit of fuel efficiency that measures the distance in miles a vehicle can travel using one liter of fuel. It combines a unit of distance from the Imperial/US customary system (mile) with a unit of volume from the metric system (liter). A higher mi/L value indicates better fuel efficiency.

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

History of the Miles per Gallon (UK) and Miles per Liter

The Imperial gallon was defined in the UK Weights and Measures Act of 1824 and became the standard measure for liquids. Consequently, MPG based on this gallon became the traditional measure of vehicle fuel efficiency in the United Kingdom and several Commonwealth countries. While the metric unit L/100km is now also used officially (especially for new car regulations and comparisons), MPG (UK) remains deeply ingrained in public understanding and is widely used by consumers and in the media.

Miles per Liter is not a standard official unit of fuel economy in any major region. Its use typically arises in specific contexts where there's a need to bridge measurements between systems, or informally. For instance, someone accustomed to thinking in miles (like in the US or UK) might measure fuel consumption in liters (common globally) and calculate efficiency in mi/L. It lacks the widespread regulatory or common usage seen with MPG (US), MPG (UK), L/100km, or km/L.

Common Uses for miles per UK gallon and miles per liter

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

Common Uses for miles per UK gallon

  • Consumer Vehicle Choice (UK): A primary factor for UK consumers when comparing the running costs and environmental impact of different vehicles.
  • Manufacturer Advertising (UK): Often highlighted in car advertisements and brochures targeting the UK market.
  • Used Car Sales (UK): Frequently quoted figure when evaluating and selling pre-owned vehicles.
  • Fuel Cost Estimation: Used by drivers to estimate fuel consumption and costs for journeys.
  • Informal Benchmarking: Common unit used in everyday conversation about car performance in the UK.

Common Uses for miles per liter

While uncommon, mi/L might be encountered in:

  • Informal Comparisons: Used by individuals comparing vehicles or fuel usage when dealing with mixed units (e.g., driving distances in miles but purchasing fuel in liters).
  • Specific Technical Analysis: Could appear in engineering or technical reports that specifically require bridging US/Imperial distance measurements with metric fuel volumes.
  • Online Calculators/Converters: Often included as an option in online tools that convert between various fuel efficiency units.

Frequently Asked Questions

Questions About Miles per Gallon (UK) (MPG (UK))

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

The core difference is the gallon size. The Imperial gallon (UK) is larger than the US customary gallon (approximately 4.546 liters vs. 3.785 liters). Because a vehicle travels the same distance but the UK gallon contains more fuel, the MPG (UK) figure for a given vehicle will always be higher than its MPG (US) figure. Specifically, 1 MPG (UK) ≈ 1.201 MPG (US).

Is a higher MPG (UK) value better?

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

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

To convert Imperial Miles Per Gallon to Liters per 100 kilometers, use the formula: L/100km ≈ 282.48 / MPG (UK). Note that unlike MPG, a lower L/100km value indicates better fuel efficiency.

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

To convert Imperial Miles Per Gallon to US Miles Per Gallon, use the formula: MPG (US) ≈ MPG (UK) * 0.83267.

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

To convert Imperial Miles Per Gallon to Kilometers per Liter, use the formula: km/L ≈ MPG (UK) * 0.3540. Like MPG, a higher km/L value indicates better fuel efficiency.

About Miles per Liter (mi/L)

Is a higher mi/L value better?

Yes, similar to MPG and km/L, a higher mi/L value signifies better fuel efficiency. It means the vehicle can cover more miles for each liter of fuel consumed.

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

To convert Miles per Liter to Kilometers per Liter, multiply by the number of kilometers in a mile. km/L ≈ mi/L * 1.60934

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

To convert Miles per Liter to Liters per 100 kilometers (where lower is better), use the formula: L/100km ≈ 62.137 / mi/L (This is derived by first converting mi/L to km/L, then using L/100km = 100 / km/L)

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

To convert Miles per Liter to US Miles Per Gallon, multiply by the number of liters in a US gallon. MPG (US) ≈ mi/L * 3.78541

How do I convert mi/L to MPG (UK)?

To convert Miles per Liter to Imperial Miles Per Gallon (used in the UK), multiply by the number of liters in an Imperial gallon. MPG (UK) ≈ mi/L * 4.54609

Is mi/L the same as MPG?

No. MPG (Miles per Gallon) measures distance per gallon (either the US gallon or the larger UK Imperial gallon), whereas mi/L measures distance per liter. Since a gallon is significantly larger than a liter, MPG values will be much higher than mi/L values for the same vehicle efficiency.

Conversion Table: Miles per Gallon (UK) to Miles per Liter

Miles per Gallon (UK) (MPG (UK))Miles per Liter (mi/L)
10.22
51.1
102.2
255.499
5010.999
10021.997
500109.985
1,000219.969

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