Imperial Gallons to Liters
1 Imperial Gallon equals 4.54609 Liters using fixed marine unit definitions for the active route.
Direct Answer
1 Imperial Gallon equals 4.54609 Liters
This conversion uses fixed marine unit definitions for the active route.
For 2 Imperial Gallon, the result equals 9.09218 Liters.
Converter Calculator
4.54609 Liters (L)
SwitchExplanation
Formula: Liters = Imperial Gallon × 4.54609. Why: tank and hold-capacity units are tied to fixed volume definitions, so the route normalizes through one volumetric basis before applying the target unit.
Imperial Gallons (Imp gal): a UK imperial liquid-volume unit used in some marine and fuel-capacity references.
Liters (L): a metric liquid-volume unit used for smaller tank, fuel, and onboard capacity references.
This route is useful when translating tank, hold, and onboard liquid-capacity values across metric and gallon-based systems for storage, fueling, and vessel operations.
This conversion is purely multiplicative because both units reduce through one fixed marine reference basis for the active family, with no offset.
Common Conversion Values
| Imperial Gallon (Imp gal) | Liters (L) |
|---|---|
| 1 | 4.54609 |
| 2 | 9.09218 |
| 5 | 22.73045 |
| 10 | 45.4609 |
| 20 | 90.9218 |
| 50 | 227.3045 |
| 100 | 454.609 |
Frequently Asked Questions
How many liters are in 1 imperial gallon?
This route uses a fixed factor, so 1 imperial gallon equals 4.54609 liters.
What is the reverse conversion for Imperial Gallons to Liters?
Use the Liters to Imperial Gallons page to convert in the opposite direction with the same fixed marine relationship.
Can I use decimal imperial gallons values?
Yes. Decimal imperial gallons values are supported, so navigation, depth, speed, and capacity calculations can stay precise.