Cubic decimeter to Gallon Converter (and vice versa)
Created by: tinycalcs.com/en
Number of supported units: 2
Last update: 2026
This converter allows you to convert cubic decimeters [dm³] to gallons [Imp.gal.] or gallons [Imp.gal.] to cubic decimeters [dm³]. Calculations are performed in both directions. The calculation result and the entered value are displayed with up to 20 decimal places for maximum accuracy.
Convert cubic decimeters to gallons
There are two simple ways to convert cubic decimeters [dm³] to gallons [Imp.gal.]. In the first calculation method, the value in cubic decimeters [dm³] is divided by the rounded conversion factor of 4.5461. The second method multiplies the value in cubic decimeters [dm³] by the rounded conversion factor of 0.22.
- Gallons [Imp.gal.] ≈ cubic decimeters [dm³] ÷ 4.5461
- Gallons [Imp.gal.] ≈ cubic decimeters [dm³] * 0.22
However, rounded conversion values are only suitable for rough conversions, as rounding errors can occur in the calculation result. The most accurate conversion of cubic decimeters [dm³] to gallons [Imp.gal.] can be achieved using the following calculation method.
- Gallons [Imp.gal.] = cubic decimeters [dm³] ÷ 454,609 * 105
Convert gallons to cubic decimeters
Converting gallons [Imp.gal.] to cubic decimeters [dm³] is easy and can be done in two ways. The first method involves multiplication, in which the value in gallons [Imp.gal.] is multiplied by the rounded conversion factor of 4.5461. The second variant is a division. Here, the value in gallons [Imp.gal.] is divided by the rounded conversion factor of 0.22.
- Cubic decimeters [dm³] ≈ gallons [Imp.gal.] * 4.5461
- Cubic decimeters [dm³] ≈ gallons [Imp.gal.] ÷ 0.22
However, rounded conversion values do not allow for exact calculations because rounding errors can occur in the calculation result. The most accurate conversion of gallons [Imp.gal.] to cubic decimeters [dm³] can be achieved using the following calculation method.
- Cubic decimeters [dm³] = gallons [Imp.gal.] * 454,609 ÷ 105
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Cubic decimeters
Minims
Cubic decimeters
Pecks
Cubic decimeters
Pints
Cubic decimeters
Quarts
Cubic decimeters
Hectoliters
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