US gallon Converter

Created by: tinycalcs.com/en
Number of supported units: 48
Last update: 2026

The US gallon Converter supports 48 different volume units. This makes it possible to convert freely between US gallons [US.liq.gal.], American, metric, and British volume units. All volume measurements are converted in real time and displayed with up to 20 decimal places, ensuring sufficient accuracy.


Conversion of US gallons

In order to convert US gallons [US.liq.gal.] into another unit of volume, a conversion value is required. This value can be determined using a conversion table. However, the table is relatively large, confusing, and difficult for inexperienced users to understand. The following tool provides a solution to this problem by allowing the rounded conversion values for US gallons [US.liq.gal.] to be queried directly from the conversion table.

Determine conversion factor

≈ 3.7854
Calculation example:
Liters = US gallons * 586.74 * 645.16 ÷ 105
US gallons = Liters ÷ 586.74 ÷ 645.16 * 105

Conversion between US gallons and cubic millimeters

A quick and precise conversion between US gallons [US.liq.gal.] and cubic millimeters [mm³] is straightforward and requires only multiplication or division by 3,785,411.784. The conversion from US gallons [US.liq.gal.] to cubic millimeters [mm³] is done by multiplying the value in US gallons [US.liq.gal.] by 3,785,411.784. To reverse the conversion, divide the value in cubic millimeters [mm³] by 3,785,411.784 to obtain US gallons [US.liq.gal.].

  • Cubic millimeters [mm³] = US gallons [US.liq.gal.] * 3,785,411.784
  • US gallons [US.liq.gal.] = cubic millimeters [mm³] ÷ 3,785,411.784

Conversion between US gallons and cubic centimeters

You can easily convert between cubic centimeters [cm³] and US gallons [US.liq.gal.] using the formulas provided below. For accurate results, it is important to follow the correct order of mathematical operations.

  • US gallons [US.liq.gal.] = cubic centimeters [cm³] ÷ 58,674 ÷ 6,451.6 * 105
  • Cubic centimeters [cm³] = US gallons [US.liq.gal.] * 58,674 * 6,451.6 ÷ 105

Conversion between US gallons and cubic decimeters

The fastest and easiest way to convert between cubic decimeters [dm³] and US gallons [US.liq.gal.] is to use the converter above. Manual conversions are also possible and can be done using the formulas provided below.

  • US gallons [US.liq.gal.] = cubic decimeters [dm³] ÷ 586.74 ÷ 645.16 * 105
  • Cubic decimeters [dm³] = US gallons [US.liq.gal.] * 586.74 * 645.16 ÷ 105

Conversion between US gallons and cubic meters

The two formulas below provide an easy way to convert between cubic meters [m³] and US gallons [US.liq.gal.]. To ensure precise conversion results, it is important to follow the correct order of math operations.

  • US gallons [US.liq.gal.] = cubic meters [m³] ÷ 586.74 ÷ 645.16 * 108
  • Cubic meters [m³] = US gallons [US.liq.gal.] * 586.74 * 645.16 ÷ 108

Conversion between US gallons and liters

You can easily convert between liters [l] and US gallons [US.liq.gal.] using the formulas provided below. For accurate results, it is important to follow the correct order of mathematical operations.

  • US gallons [US.liq.gal.] = liters [l] ÷ 586.74 ÷ 645.16 * 105
  • Liters [l] = US gallons [US.liq.gal.] * 586.74 * 645.16 ÷ 105

US gallon

Decimal places

Metric units

American / British

Other units converter

Liquid pints

Liquid quarts

US minims

US pecks

Acre-feet