Marine & NauticalUS Gallons to Liters

US Gallons to Liters

Snapshot

1 US Gallon equals 3.785412 Liters.

  • Reference basis: This result uses fixed marine-capacity definitions for tanks, holds, and onboard volume checks.
  • Example: For 2 US Gallons, the result equals 7.570824 Liters.

Interactive conversion

Converter Calculator

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

3.785412 Liters (L)

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API and AI agent access

US Gallons to Liters.

Machine-readable identifiers

Conversion family
marine
Source unit
us_gallons
Target unit
liters

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": "marine",
  "value": 1,
  "from": "us_gallons",
  "to": "liters"
}

Essential response

{
  "ok": true,
  "conversion": {
    "family": "marine",
    "value": 1,
    "from": "us_gallons",
    "to": "liters",
    "result": {
      "raw": 3.785411784,
      "display": "3.785412"
    },
    "canonicalPath": "/marine/us-gallons-to-liters/"
  }
}
API, OpenAPI and WebMCP documentation

Explanation

US Gallons convert into liters inside the marine capacity family. Formula: L = US gal × 3.785411784. The same fixed relationship is used in the calculator, common values, and mirror page so route checks stay aligned.

This is useful for marine navigation, onboard operations, sounding work, or vessel-capacity checks where nautical units and engineering units need to line up without changing the underlying reference model.

Method & Marine Basis

  • Method basis: fixed marine-capacity definitions used for tank, hold, and fueling calculations.
  • Applied factor: 1 US Gallon = 3.785412 Liters.
  • Consistency rule: calculator output and common-value rows use the same fixed marine constants in both directions.

Common Conversion Values

US Gallon (US gal)Liters (L)
1 3.785412
2 7.570824
5 18.927059
10 37.854118
20 75.708236
50 189.270589
100 378.541178