The short answer: 1 tablespoon is 1/2 fluid ounce. The chart runs through every amount that comes up regularly, and each gets its own note underneath.
Tablespoons to fluid ounces: full chart
| Tablespoons | Fluid ounces |
|---|---|
| 1/4 tbsp | 1/8 fl oz |
| 1/2 tbsp | 1/4 fl oz |
| 1 tbsp | 1/2 fl oz |
| 2 tbsp | 1 fl oz |
| 3 tbsp | 1 1/2 fl oz |
| 4 tbsp | 2 fl oz |
| 6 tbsp | 3 fl oz |
| 8 tbsp | 4 fl oz |
| 12 tbsp | 6 fl oz |
| 16 tbsp | 8 fl oz |
1 tablespoon to fluid ounces
1 tablespoon is 1/2 fluid ounce. Take the 1 tablespoon figure of 1/2 fluid ounce and multiply by 1 to get there.
2 tablespoons to fluid ounces
2 tablespoons is 1 fluid ounce. Half this amount, 1 tablespoon, comes to 0.5; double it and you are at 2.
3 tablespoons to fluid ounces
3 tablespoons is 1 1/2 fluid ounces. Take the 1 tablespoon figure of 1/2 fluid ounce and multiply by 3 to get there.
4 tablespoons to fluid ounces
4 tablespoons is 2 fluid ounces. Working from 1 tablespoon is 1/2 fluid ounce, 4 scales to 2.
6 tablespoons to fluid ounces
6 tablespoons is 3 fluid ounces. That is 0.5 multiplied by 6, since 1 tablespoon is 1/2 fluid ounce.
8 tablespoons to fluid ounces
8 tablespoons is 4 fluid ounces. Take the 1 tablespoon figure of 1/2 fluid ounce and multiply by 8 to get there.
12 tablespoons to fluid ounces
12 tablespoons is 6 fluid ounces. 12 of these makes 6, counting from the 1 tablespoon figure of 1/2 fluid ounce.
16 tablespoons to fluid ounces
16 tablespoons is 8 fluid ounces. Working from 1 tablespoon is 1/2 fluid ounce, 16 scales to 8.
The same word, three different volumes
A US cup is 236.6 ml. A metric cup, used in Australia and New Zealand, is 250 ml — 5.7 per cent more. An old UK imperial cup is 284 ml.
Measured in the metric cup the 1 tablespoon figure above would read 0.528 fluid ounce instead of 1/2 fluid ounce.
How the chart works
Read down to your amount, then across. Amounts the table skips can be built by adding two rows together, since the relationship is a straight multiple throughout.
What moves this number
Only the measuring system. Within US measures the relationship never moves; across systems it does, which is where recipes from other countries go wrong.
Going the other way: fluid ounces to tablespoons
| Fluid ounces | Tablespoons |
|---|---|
| 1/4 fl oz | 1/2 tbsp |
| 1/2 fl oz | 1 tbsp |
| 1 fl oz | 2 tbsp |
Reading it backwards works on the same figure, and these rows show which way it moves.
Measuring it without getting it wrong
Sticky ingredients leave a film behind in the cup. Oil the cup first, measure them last, or accept that the bowl is getting slightly less than the recipe asked for.
Rounding: when it matters
Where a recipe gives an odd figure it usually got there by conversion rather than by choice. Rounding it back to the round number it started as is often closer to the intent than the decimal.
The error people make most often
Reading a liquid measure from above. Lift the jug to eye level and the surface curves; the figure read off is consistently more than the jug holds.
Where this comes up
Anyone cooking along with a video is converting on the fly. 1 tablespoon is 1/2 fluid ounce is worth having settled before the pan is hot.
If you are scaling the recipe
Half of 1 tablespoon is 1/4 fluid ounce. Double it and you have 1 fluid ounce; triple it and you are at 1 1/2 fluid ounces. A batch cut to a quarter needs 1/8 fluid ounce.
Multiply or divide the whole line at once rather than converting each step; the answer is the same and there is less to get wrong.
How much precision this needs
1 tablespoon is 0.5 on the nose. No approximation enters anywhere, which is why doubling and halving stay exact all the way down.
Other ways this gets asked
People look for this in a few different forms; all of them land on the same figures:
- Tablespoons to Fluid ounces: Full Conversion Chart?
- How Much Is An Ounce In Tablespoons?
- 1 tbsp to fl oz: Exactly 1/2 fl oz?
Related conversions
For every kitchen figure in one place, see the full conversion chart.
