1.5 L to Gal – Full Calculation Guide

1.5 liters is approximately 0.3963 gallons.

To convert 1.5 liters (l) to gallons (gal), you multiply the liter value by the conversion factor 0.264172. This factor represents how many gallons fit into one liter, so multiplying gives the equivalent volume in gallons.

Conversion Tool


Result in gal:

Conversion Formula

The formula to convert liters to gallons is:

Gallons = Liters × 0.264172

This formula works because 1 liter equals roughly 0.264172 gallons. Multiplying the number of liters by this factor gives the corresponding number of gallons.

Example: Convert 1.5 l to gal

  • Start with 1.5 liters.
  • Multiply 1.5 × 0.264172 = 0.396258.
  • Round the result to 4 decimal places: 0.3963 gal.

Conversion Example

  • Convert 3 liters to gallons:
    • 3 × 0.264172 = 0.792516 gal
    • Rounded: 0.7925 gal
  • Convert 0.75 liters to gallons:
    • 0.75 × 0.264172 = 0.198129 gal
    • Rounded: 0.1981 gal
  • Convert 10 liters to gallons:
    • 10 × 0.264172 = 2.64172 gal
    • Rounded: 2.6417 gal
  • Convert 5.25 liters to gallons:
    • 5.25 × 0.264172 = 1.386903 gal
    • Rounded: 1.3869 gal
  • Convert 0.1 liters to gallons:
    • 0.1 × 0.264172 = 0.0264172 gal
    • Rounded: 0.0264 gal

Conversion Chart

The chart below shows liters from -23.5 to 26.5 and their equivalent gallons. Negative values represent volumes below zero, which might be useful in some scientific calculations. To use the chart, find the liter value you want, then see the corresponding gallons in the right column.

Liters (l)Gallons (gal)
-23.5-6.2040
-20.0-5.2834
-15.0-3.9626
-10.0-2.6417
-5.0-1.3209
0.00.0000
5.01.3209
10.02.6417
15.03.9626
20.05.2834
25.06.6043
26.56.9995

Related Conversion Questions

  • How many gallons equals 1.5 liters exactly?
  • What is 1.5 liters converted to US liquid gallons?
  • Is 1.5 liters more or less than 0.4 gallons?
  • How to convert 1.5 liters to gallons without calculator?
  • Can 1.5 liters be expressed in gallons and quarts?
  • What is the formula to get gallons from 1.5 liters?
  • Does 1.5 liters equal 0.5 gallons or less?

Conversion Definitions

l (liter): Liter is a unit of volume in the metric system, equal to one cubic decimeter (dm³). It is commonly used to measure liquids like water, gasoline, or milk. One liter equals 1000 milliliters and is slightly larger than a US quart.

gal (gallon): Gallon is a unit of volume used mainly in the US and UK, but they differs by region. The US liquid gallon equals 3.78541 liters, while the UK gallon is larger. This page uses the US liquid gallon, widely used for measuring fuel and liquids.

Conversion FAQs

Is the gallon used here a US gallon or UK gallon?

The gallon used in this conversion is the US liquid gallon, which equals about 3.78541 liters. The UK (Imperial) gallon is different, about 4.54609 liters, so values would differ if converting to UK gallons.

Can I convert liters to gallons without a calculator?

You can estimate by knowing 1 liter is about 0.26 gallons. Multiply your liters by 0.26 for an approximate answer. For precise values, calculator or conversion tools are better.

Why does the conversion factor 0.264172 not look simple?

This number results from the exact volume relation between liters and US gallons. Since they are defined differently (metric vs customary units), the factor isn’t a simple fraction but a decimal approximates the ratio accurately.

Does this conversion apply to all types of gallons?

No, this conversion applies to US liquid gallons only. UK gallons or dry gallons have different volumes, so their conversion factors from liters vary.