 # How many oz in a gallon? – Ounces vs Gallon

How many oz in a gallon? the answer to this question will depend on in which country you are from? In this article, we will explain to you how to calculate gallon vs. ounces (oz). An ounce is a unit of weight, volume, or mass. It is used in the USA and Britain. OZ abbreviates an ounce. An ounce is the united state customary. In British, It is an imperial ounce.

An ounce is commonly used in the US for measurement of packaged foods, boxing gloves, paper, the areal density of the fabric, and postal items.

## How to calculate Ounces to Gallon?

Calculation of Ounce t Gallon is depended that what system we are using.

It means if we are using US measurement, 1 US Gallon measures as 128 Ounces.

1 Gallon = 128 Ounces

And if we are operate in UK measurement then 1 UK Gallon measures as 160 imperial Ounces.

1 Gallon =160 Imperial Ounces

US System and the UK Imperial system are different due to the use of its imperial system.

## US System

1 Fluid Ounce = 0.0078125 Gallon

1 Liters = 33.814 Fluid Ounces

1Fluid Ounce = 0.029574 Liter

1Fluid Gallon = 0.029574 X 128 = 3.785414 Liters

1 Fluid Gallon = 3.785 x 33.814 = 128 Ounces

## UK Imperial System

1 Gallon (UK, Fluid) = 4.54609 liters

1 Gallon = 4.54609 X 35.1951 = 160 Ounces

1 Liters = 35.1951 Ounces (UK fluid)

1 Imperial Ounce = 0.028413 Liter

1 Fluid Gallon = 4.54609 x 35.1951 = 160 ounces

## Fluid Ounce

The Fluid Ounce is a measurement of “Volume”.

## Troy Ounce

Troy Ounce is equal to 31.1g (Grams)

It is used for precious mass  such as Gold, Silver, Rhodium, Platinum, Palladium.

## Ounce Force

It is a measurement for weight that is used for “Force”.

## Some other mass of Ounce Units (g* Grams)

• Spanish ounce (onza) = 28.75 g
• French Ounce (Once) = 30.59g
• Potuguese Ounce  = 28.69g
• Italian Ounce = 27.4g
• Dutch metric Ounce =100g
• Chinese metric Ounce = 50g

International standard  Ounce is set as 28.349523125g under international yard and pound agreement of 1959. It is signed by Countries of common wealth nations and United States.

International Troy Ounce is set as 31.1034768 grams.

A Standard Ounce is a Troy Ounce which equal to 22 Carat Gold.