Tablespoons to fluid ounces (tbsp to fl oz) converter

What is a tablespoons to fluid ounces converter?

A tablespoons to fluid ounces converter is an online tool that turns a volume given in tablespoons (tbsp) into its equivalent in fluid ounces (fl oz), and back again. Both units measure liquid volume, but they belong to slightly different traditions: the fluid ounce is a standard kitchen and bottling unit, while the tablespoon is a smaller cooking measure. Because the exact size of a tablespoon depends on the country, this converter lets you choose the tablespoon definition that matches your recipe before reading off the result.

Tablespoon and fluid ounce variants

There is no single, worldwide tablespoon. The three variants supported here are:

• US tablespoon — 14.7868 mL, exactly half of a US fluid ounce.
• Metric tablespoon — 15 mL, used widely across Europe and on many nutrition labels.
• Australian tablespoon — 20 mL, noticeably larger than the others.

On the fluid ounce side you can pick the US fluid ounce (29.5735 mL) or the UK (Imperial) fluid ounce (28.4131 mL). Picking the right pair matters: converting with the wrong tablespoon size can change a recipe by a meaningful amount.

How does the converter work?

The converter routes every value through millilitres as a common base. It multiplies the tablespoon count by the millilitre size of the chosen tablespoon, then divides by the millilitre size of the chosen fluid ounce. The reverse direction simply applies the inverse, so editing either field updates the other automatically.

Formula for conversion

Using millilitres as the bridge, the general relationship is:

$\text{fl oz} = \frac{\text{tbsp} \times (\text{mL per tbsp})}{\text{mL per fl oz}}$

For US tablespoons to US fluid ounces (14.7868 / 29.5735):

$\text{US fl oz} = \text{US tbsp} \times 0.5$

For US fluid ounces to US tablespoons:

$\text{US tbsp} = \text{US fl oz} \times 2$

For metric (15 mL) tablespoons to US fluid ounces:

$\text{US fl oz} = \text{metric tbsp} \times \frac{15}{29.5735} = \text{metric tbsp} \times 0.50721$

For Australian (20 mL) tablespoons to US fluid ounces:

$\text{US fl oz} = \text{AUS tbsp} \times \frac{20}{29.5735} = \text{AUS tbsp} \times 0.67628$

Conversion table

The table below lists common tablespoon counts and their fluid ounce equivalents for each tablespoon variant, all expressed in US fluid ounces:

Examples

Example 1: US tablespoons to US fluid ounces

Convert 2 US tablespoons to US fluid ounces. Since 1 US fluid ounce equals 2 US tablespoons:

$2 \text{ US tbsp} \times 0.5 = 1 \text{ US fl oz}$

Example 2: US fluid ounces to US tablespoons

Going the other way, convert 1 US fluid ounce to US tablespoons:

$1 \text{ US fl oz} \times 2 = 2 \text{ US tbsp}$

Example 3: A larger batch

A recipe calls for 8 US tablespoons of oil and you want to measure it with a fluid ounce jug:

$8 \text{ US tbsp} \times 0.5 = 4 \text{ US fl oz}$

Example 4: Metric tablespoons

You have a European spoon defined as 15 mL and need US fluid ounces. Converting 1 metric tablespoon:

$1 \text{ metric tbsp} \times \frac{15}{29.5735} = 0.50721 \text{ US fl oz}$

Notes

• Always confirm which tablespoon you mean: US (14.7868 mL), metric (15 mL), or Australian (20 mL). The metric and US tablespoons are close, but the Australian tablespoon is about a third larger.
• The handy rule “1 US fluid ounce = 2 US tablespoons” only holds for the US variants on both sides.
• US and UK fluid ounces differ slightly (29.5735 mL vs 28.4131 mL), so a UK recipe may need the UK fluid ounce selected for full accuracy.
• The converter accepts decimals, so partial spoonfuls such as 1.5 tablespoons convert just as precisely as whole numbers.

Frequently asked questions

How many tablespoons are in a fluid ounce?

There are exactly 2 US tablespoons in 1 US fluid ounce, because a US tablespoon (14.7868 mL) is half of a US fluid ounce (29.5735 mL).

How many fluid ounces is 1 tablespoon?

One US tablespoon equals 0.5 US fluid ounces. A metric (15 mL) tablespoon is about 0.50721 US fluid ounces, and an Australian (20 mL) tablespoon is about 0.67628 US fluid ounces.

Are a US tablespoon and a metric tablespoon the same?

Almost, but not quite. A US tablespoon is 14.7868 mL while a metric tablespoon is 15 mL. The small difference rarely matters in everyday cooking but can add up over many spoonfuls.

Why is the Australian tablespoon different?

The Australian tablespoon is defined as 20 mL, larger than the 15 mL metric spoon. If you follow an Australian recipe with a smaller spoon, you will under-measure, so select the Australian tablespoon when needed.

Does the converter handle UK fluid ounces?

Yes. You can choose the UK (Imperial) fluid ounce, which is 28.4131 mL, instead of the US fluid ounce. If you want to compare cup-based volumes instead, try our millilitres to cups converter.

How do I convert fluid ounces back to tablespoons?

Just enter a value in the fluid ounces field and the tablespoons field updates automatically, or use the dedicated fluid ounce to tablespoon converter for the reverse direction.