Fuel EconomyMiles per Imperial Gallon to Liters per 100 Km

Miles per Imperial Gallon to Liters per 100 Kilometers

Methodology·How We Verify

Snapshot

1 Miles per Imperial Gallon equals 282.480936 Liters per 100 Kilometers.

Reference basis: This conversion uses a fixed factor based on reference unit definitions.
Example: For 5 Miles per Imperial Gallon, the result equals 56.496187 Liters per 100 Kilometers.

Interactive conversion

Converter Calculator

Decimals: 1.5 or 1,5. Fractions: 1/2. Scientific notation: 1e3. Write 1000 without grouping separators.

282.480936 Liters per 100 Kilometers (L/100km)

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API and AI agent access

Miles per Imperial Gallon to Liters per 100 Kilometers.

Machine-readable identifiers

Conversion family: fuel-economy
Source unit: miles_per_imperial_gallon
Target unit: liters_per_100_km

Use these identifiers in the API request. Sources and model limits also apply to software clients.

Example API request and response

POST /api/v1/convert

Request

{
  "family": "fuel-economy",
  "value": 1,
  "from": "miles_per_imperial_gallon",
  "to": "liters_per_100_km"
}

Essential response

{
  "ok": true,
  "conversion": {
    "family": "fuel-economy",
    "value": 1,
    "from": "miles_per_imperial_gallon",
    "to": "liters_per_100_km",
    "result": {
      "raw": 282.480936,
      "display": "282.480936"
    },
    "canonicalPath": "/fuel-economy/miles-per-imperial-gallon-to-liters-per-100-km/"
  }
}

API, OpenAPI and WebMCP documentation

Explanation

The converter converts miles per imperial gallon into liters per 100 kilometers by normalizing the input through liters per 100 kilometers, then restating the result in the target fuel-economy format. Because one side measures consumption and the other measures efficiency, the numeric behavior is inverse even though the route stays on one fixed shared basis. The calculator, common values, and mirror Liters per 100 Kilometers to Miles per Imperial Gallon page all use that same model.

Method & Reference

Method basis: exact conversion formula shown in Snapshot.
Applied factor: 1 Miles per Imperial Gallon = 282.480936 Liters per 100 Kilometers.
Consistency rule: calculator output and table values use the same constants and rounding policy.

Common Conversion Values

Miles per Imperial Gallon (mpg (UK))	Liters per 100 Kilometers (L/100km)
5	56.496187
10	28.248094
15	18.832062
20	14.124047
25	11.299237
30	9.416031
40	7.062023
50	5.649619
60	4.708016
80	3.531012

Questions & answers

Frequently Asked Questions

How is mpg (UK) to L/100km calculated?

This page converts through liters per 100 kilometers, which keeps consumption-format and efficiency-format fuel economy units on one fixed shared basis even though their numeric behavior is inverse.

Why do consumption and efficiency values move in opposite directions?

Consumption units measure fuel used per distance, while efficiency units measure distance per fuel amount. That is why improving efficiency lowers one number while raising the other.