Convert Volume from Tablespoons to Gallons (Tbs to gal)

Tablespoon to Gallon Conversion Formula

Example

Let's convert 5 Tablespoon (Tbs) to Gallon (gal).

Using the formula:

Therefore, 5 Tablespoon (Tbs) is equal to 0.01953125 Gallon (gal).

How many tablespoons are in one gallon? One Gallon (gal) contains 256 Tablespoons (Tbs) — the inverse of the factor above. Multiplying by 0.00390625 takes you from tablespoons to gallons; multiplying by 256 brings you back.

Put in words: one tablespoon equals 0.00390625 gallons, so the tablespoon is the smaller unit of this pair. Converting between them never changes the amount of volume being measured — only the size of the unit you count it in.

What is a Tablespoon (Tbs)?

A tablespoon (often abbreviated as Tbs or tbsp) is a common unit of volume used in cooking and baking.

In the US customary system, one tablespoon is equal to 0.5 fluid ounces (fl oz).

How Many Teaspoons in a Tablespoon?

The most essential kitchen conversion to remember is that one tablespoon is equal to exactly three teaspoons.

This simple formula (1 tbsp = 3 tsp) is crucial for getting your recipes right, especially when you don't have a complete set of measuring spoons.

How Many Milliliters (ml) in a Tablespoon?

When following recipes from around the world or using a kitchen scale, you'll need the metric conversion.

A standard United States tablespoon is equal to approximately 15 milliliters (ml).

While the precise measurement is 14.787 ml, it is universally rounded to 15 ml for culinary convenience.

Are All Tablespoons the Same Size? (US vs. UK vs. Australian)

It's important to know that a tablespoon's volume can vary by country, which can affect your recipe. Always check where your recipe comes from!

Here's a quick comparison:

• United States (US): 1 tablespoon = ~15 ml
• Australia (AU): 1 tablespoon = 20 ml
• United Kingdom (UK): 1 tablespoon = 15 ml (modern standard)

What is a Gallon (gal)?

A gallon (gal) is a unit of volume, most commonly associated with the imperial and US customary systems of measurement.

It is equal to 128 Fluid Ounces (fl-oz).

What's the Difference Between a US Gallon and an Imperial Gallon?

A common point of confusion is the difference between the US gallon and the imperial gallon (used in the UK and other Commonwealth nations).

They are not the same size!

• The US Gallon is smaller, defined as 231 cubic inches, which is approximately 3.785 liters.
• The Imperial Gallon is larger, equivalent to about 4.546 liters.

This difference stems from historical definitions that were standardized differently in the US and Britain during the 18th and 19th centuries.

So, if you're comparing fuel efficiency, remember that "miles per gallon" ratings are based on different-sized gallons!

Where Does the Word "Gallon" Come From?

The word "gallon" has a rich history, tracing its roots back through several languages.

It originates from the Old Northern French word galon, which referred to a liquid measure.

This term is believed to have originated from the Gallo-Roman word gallēta, meaning a "pail" or "bucket." The ultimate origin likely goes back to a Celtic word, highlighting the unit's long-standing use in European trade and daily life for centuries.

What is a "Dry" Gallon?

While we typically associate the gallon with liquids, there is also a US dry gallon.

This unit, not commonly used today, is equivalent to one-eighth of a bushel, or about 4.405 liters. It was historically used to measure dry goods such as grain or fruit.

This is also why the famous "10-gallon hat" is a misnomer; its name doesn't refer to its volume.

Instead, it is thought to originate from the Spanish word galón, meaning "braid," which refers to the braided band on the hat.

Tablespoon to Gallon Conversion Table

Here are some quick reference conversions from Tablespoon (Tbs) to Gallon (gal):