Fuel EconomyMiles per Imperial Gallon to Kilometers per Liter

Miles per Imperial Gallon to Kilometers per Liter

Methodology·How We Verify

Snapshot

1 Miles per Imperial Gallon equals 0.354006 Kilometers per Liter.

Reference basis: This conversion uses a fixed factor based on reference unit definitions.
Example: For 5 Miles per Imperial Gallon, the result equals 1.770031 Kilometers per Liter.

Interactive conversion

Converter Calculator

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

0.354006 Kilometers per Liter (km/L)

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API and AI agent access

Miles per Imperial Gallon to Kilometers per Liter.

Machine-readable identifiers

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

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": "kilometers_per_liter"
}

Essential response

{
  "ok": true,
  "conversion": {
    "family": "fuel-economy",
    "value": 1,
    "from": "miles_per_imperial_gallon",
    "to": "kilometers_per_liter",
    "result": {
      "raw": 0.35400619035,
      "display": "0.354006"
    },
    "canonicalPath": "/fuel-economy/miles-per-imperial-gallon-to-kilometers-per-liter/"
  }
}

API, OpenAPI and WebMCP documentation

Explanation

The converter converts miles per imperial gallon into kilometers per liter using liters per 100 kilometers as the shared normalization basis. The factor stays fixed for this route, so the direct answer, calculator, common values, and mirror Kilometers per Liter to Miles per Imperial Gallon page all use the same fuel-economy definitions.

Method & Reference

Method basis: exact conversion formula shown in Snapshot.
Applied factor: 1 Miles per Imperial Gallon = 0.354006 Kilometers per Liter.
Consistency rule: calculator output and table values use the same constants and rounding policy.

Common Conversion Values

Miles per Imperial Gallon (mpg (UK))	Kilometers per Liter (km/L)
5	1.770031
10	3.540062
15	5.310093
20	7.080124
25	8.850155
30	10.620186
40	14.160248
50	17.70031
60	21.240371
80	28.320495

Questions & answers

Frequently Asked Questions

Does this page use fixed fuel-economy standards only?

Yes. This cluster uses fixed metric, US, and UK fuel-economy standards only, with every route normalized through liters per 100 kilometers.