Imperial Gallons to US Gallons
Snapshot
1 Imperial Gallon equals 1.20095 US Gallons.
- Reference basis: This result uses fixed marine-capacity definitions for tanks, holds, and onboard volume checks.
- Example: For 2 Imperial Gallons, the result equals 2.4019 US Gallons.
Interactive conversion
Converter Calculator
Decimals: 1.5 or 1,5. Fractions: 1/2. Scientific notation: 1e3. Write 1000 without grouping separators.
1.20095 US Gallons (US gal)
SwitchAPI and AI agent access
Imperial Gallons to US Gallons.
Machine-readable identifiers
- Conversion family
marine- Source unit
imperial_gallons- Target unit
us_gallons
Use these identifiers in the API request. Sources and model limits also apply to software clients.
Example API request and response
POST /api/v1/convertRequest
{
"family": "marine",
"value": 1,
"from": "imperial_gallons",
"to": "us_gallons"
}Essential response
{
"ok": true,
"conversion": {
"family": "marine",
"value": 1,
"from": "imperial_gallons",
"to": "us_gallons",
"result": {
"raw": 1.2009499255,
"display": "1.20095"
},
"canonicalPath": "/marine/imperial-gallons-to-us-gallons/"
}
}Explanation
Imperial Gallons convert into us gallons inside the marine capacity family. Formula: US gal = Imp gal × 1.2009499255. 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.
Common Conversion Values
| Imperial Gallon (Imp gal) | US Gallons (US gal) |
|---|---|
| 1 | 1.20095 |
| 2 | 2.4019 |
| 5 | 6.00475 |
| 10 | 12.009499 |
| 20 | 24.018999 |
| 50 | 60.047496 |
| 100 | 120.094993 |