Convert US tablespoons to US fluid ounces
1 US tablespoon is 0.5 fl oz. One US tablespoon is exactly 0.5 US fluid ounces.
One US tablespoon is 0.5 US fluid ounces. To convert US tablespoons to US fluid ounces, multiply by 0.5; to go the other way, divide by 0.5 or multiply by 2. The factor is exact rather than rounded: it follows from NIST Handbook 130. Three teaspoons, about 14.79 ml.
Factor checked against the defining standard · How we check
- US tablespoons × 0.5
1 * 0.50.5 fl oz
1 US tablespoon in every volume unit
| Unit | Value | Exact factor |
|---|---|---|
| US teaspoons | 3 tsp | × 3 |
| US tablespoons (as entered) | 1 tbsp | — |
| US fluid ounces | 0.5 fl oz | × 0.5 |
| US cups | 0.0625 cup | × 0.0625 |
| US pints | 0.03125 pt | × 0.03125 |
| US quarts | 0.015625 qt | × 0.015625 |
| US gallons | 0.00390625 gal | × 0.00390625 |
| milliliters | 14.78676478 ml | × 14.7867647812 |
| liters | 0.01478676478 L | × 0.0147867647812 |
| imperial gallons | 0.003252633534 gal (UK) | × 0.00325263353371 |
| imperial quarts | 0.01301053413 qt (UK) | × 0.0130105341348 |
| imperial pints | 0.02602106827 pt (UK) | × 0.0260210682697 |
| imperial fluid ounces | 0.5204213654 fl oz (UK) | × 0.520421365393 |
| imperial gills | 0.1040842731 gi (UK) | × 0.104084273079 |
| cubic millimetres | 14,786.76478 mm³ | × 14,786.7647812 |
| cubic centimetres | 14.78676478 cm³ | × 14.7867647812 |
| cubic inches | 0.90234375 in³ | × 0.90234375 |
| cubic feet | 0.0005221896701 ft³ | × 0.000522189670139 |
| cubic yards | 0.00001934035815 yd³ | × 0.0000193403581533 |
| cubic metres | 0.00001478676478 m³ | × 0.0000147867647812 |
Factors are entered by hand from NIST Handbook 130 rather than derived from a units library, so the ones that terminate are exact rather than rounded.
How do you convert US tablespoons to US fluid ounces? The converter and the working
- 1.Take the measurement in US tablespoons.
- 2.Multiply by 0.5 — that is how many US fluid ounces fit in one US tablespoon.
- 3.To go back the other way, divide by 0.5, or multiply by 2.
Worked example: 25 US tablespoons to US fluid ounces
- Formula
- tbsp × 0.5 = fl oz
- Arithmetic
- 25 × 0.5 = 12.5 fl oz
- Answer
- 25 tbsp = 12.5 fl oz
The factor is exact, so this figure is exact too — only the display is rounded.
US tablespoons to US fluid ounces conversion table
| US tablespoons | US fluid ounces |
|---|---|
| 1 tbsp | 0.5 fl oz |
| 2 tbsp | 1 fl oz |
| 3 tbsp | 1.5 fl oz |
| 4 tbsp | 2 fl oz |
| 5 tbsp | 2.5 fl oz |
| 6 tbsp | 3 fl oz |
| 7 tbsp | 3.5 fl oz |
| 8 tbsp | 4 fl oz |
| 9 tbsp | 4.5 fl oz |
| 10 tbsp | 5 fl oz |
| 12 tbsp | 6 fl oz |
| 15 tbsp | 7.5 fl oz |
| 20 tbsp | 10 fl oz |
| 25 tbsp | 12.5 fl oz |
| 50 tbsp | 25 fl oz |
| 100 tbsp | 50 fl oz |
| 200 tbsp | 100 fl oz |
| 300 tbsp | 150 fl oz |
| 500 tbsp | 250 fl oz |
| 1000 tbsp | 500 fl oz |
| 2000 tbsp | 1,000 fl oz |
| 5000 tbsp | 2,500 fl oz |
| 10000 tbsp | 5,000 fl oz |
What is a US tablespoon?
Three teaspoons, about 14.79 ml. Australia is the outlier at four teaspoons to the tablespoon.
What is a US fluid ounce?
Exactly one 128th of a US gallon, which makes it 29.5735295625 ml exactly. The imperial fluid ounce is a different unit at exactly 28.4130625 ml, so a UK recipe calling for 10 fl oz means 284 ml and a US one means 296 ml. It is also a volume, not a weight: an ounce of flour is not a fluid ounce of flour.
How many US fluid ounces are in a US tablespoon?
One US tablespoon is 0.5 US fluid ounces, exactly. Going the other way, one US fluid ounce is 2 US tablespoons. Both figures come from the same defined relation rather than from a measurement, which is why they are the same today as they were in 1959.
Every volume unit here
The whole group — 20 units with their symbols and the size of each one in liters — is on the conversion index, along with every pair it makes. The table above already gives each of them relative to a US tablespoon.
Cite this page
- APA
- Rule Calculator. (2026). Convert US tablespoons to US fluid ounces. Rule Calculator. https://rulecalculators.com/convert/tablespoon-to-fluid-ounce
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- Chicago
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Questions people actually ask
- How many US fluid ounces are in a US tablespoon?
- 0.5. Exactly one 128th of a US gallon, which makes it 29.5735295625 ml exactly. The imperial fluid ounce is a different unit at exactly 28.4130625 ml, so a UK recipe calling for 10 fl oz means 284 ml and a US one means 296 ml. It is also a volume, not a weight: an ounce of flour is not a fluid ounce of flour.
- How do I convert US fluid ounces back to US tablespoons?
- Divide by 0.5, or multiply by 2 — they are the same operation.
Other volume conversions
US fluid ounces to US tablespoons — the same conversion the other way.