Convert US tablespoons to Imperial fluid ounces
1 US tablespoon is 0.52 fl oz (UK). One US tablespoon is exactly 0.520421365393 imperial fluid ounces.
One US tablespoon is 0.52042137 imperial fluid ounces. To convert US tablespoons to imperial fluid ounces, multiply by 0.52042137; to go the other way, divide by 0.52042137 or multiply by 1.9215199. The relation is exact but the figure is not: it is a rounding of a number that does not terminate, and it follows from NIST Handbook 130. Three teaspoons, about 14.79 ml.
Factor checked against the defining standard · How we check
- US tablespoons × 0.52042137
1 * 0.52042140.52 fl oz (UK)
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 imperial fluid ounces? The converter and the working
- 1.Take the measurement in US tablespoons.
- 2.Multiply by 0.52042137 — that is how many imperial fluid ounces fit in one US tablespoon.
- 3.To go back the other way, divide by 0.52042137, or multiply by 1.9215199.
Worked example: 25 US tablespoons to imperial fluid ounces
- Formula
- tbsp × 0.52042137 = fl oz (UK)
- Arithmetic
- 25 × 0.52042137 = 13.01 fl oz (UK)
- Answer
- 25 tbsp = 13.01 fl oz (UK)
The factor is rounded for display; the figure above is computed from the full value.
US tablespoons to imperial fluid ounces conversion table
| US tablespoons | Imperial fluid ounces |
|---|---|
| 1 tbsp | 0.52 fl oz (UK) |
| 2 tbsp | 1.04 fl oz (UK) |
| 3 tbsp | 1.56 fl oz (UK) |
| 4 tbsp | 2.08 fl oz (UK) |
| 5 tbsp | 2.6 fl oz (UK) |
| 6 tbsp | 3.12 fl oz (UK) |
| 7 tbsp | 3.64 fl oz (UK) |
| 8 tbsp | 4.16 fl oz (UK) |
| 9 tbsp | 4.68 fl oz (UK) |
| 10 tbsp | 5.2 fl oz (UK) |
| 12 tbsp | 6.25 fl oz (UK) |
| 15 tbsp | 7.81 fl oz (UK) |
| 20 tbsp | 10.41 fl oz (UK) |
| 25 tbsp | 13.01 fl oz (UK) |
| 50 tbsp | 26.02 fl oz (UK) |
| 100 tbsp | 52.04 fl oz (UK) |
| 200 tbsp | 104.08 fl oz (UK) |
| 300 tbsp | 156.13 fl oz (UK) |
| 500 tbsp | 260.21 fl oz (UK) |
| 1000 tbsp | 520.42 fl oz (UK) |
| 2000 tbsp | 1,040.84 fl oz (UK) |
| 5000 tbsp | 2,602.11 fl oz (UK) |
| 10000 tbsp | 5,204.21 fl oz (UK) |
What is a US tablespoon?
Three teaspoons, about 14.79 ml. Australia is the outlier at four teaspoons to the tablespoon.
What is an imperial fluid ounce?
One 160th of an imperial gallon, 28.4130625 ml exactly. The US fluid ounce is one 128th of a smaller gallon at 29.57 ml, so the two ounces differ by about 4% in the opposite direction to the gallons.
How many imperial fluid ounces are in a US tablespoon?
One US tablespoon is 0.52042137 imperial fluid ounces. Going the other way, one imperial fluid ounce is 1.9215199 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 imperial fluid ounces. Rule Calculator. https://rulecalculators.com/convert/tablespoon-to-imperial-fluid-ounce
- MLA
- "Convert US tablespoons to imperial fluid ounces." Rule Calculator, August 16, 2026, https://rulecalculators.com/convert/tablespoon-to-imperial-fluid-ounce.
- Chicago
- Rule Calculator. "Convert US tablespoons to imperial fluid ounces." Rule Calculator. Last reviewed August 16, 2026. https://rulecalculators.com/convert/tablespoon-to-imperial-fluid-ounce.
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Questions people actually ask
- How many imperial fluid ounces are in a US tablespoon?
- 0.52042137. One 160th of an imperial gallon, 28.4130625 ml exactly. The US fluid ounce is one 128th of a smaller gallon at 29.57 ml, so the two ounces differ by about 4% in the opposite direction to the gallons.
- How do I convert imperial fluid ounces back to US tablespoons?
- Divide by 0.52042137, or multiply by 1.9215199 — they are the same operation.
Other volume conversions
Imperial fluid ounces to US tablespoons — the same conversion the other way.