---
title: "Tablespoons to US fluid ounces — tbsp to fl oz converter"
description: "1 tablespoon = 0.5 US fluid ounces. Convert tablespoons to US fluid ounces with a full conversion table, the exact formula, and a calculator for any value."
url: https://atoneplace.net/convert/tablespoons-to-fl-oz/
site: "At One Place"
---

# Tablespoons to US fluid ounces

**1 tablespoon in US fluid ounces: 1 tbsp = 0.5 fl oz**

fl oz = tbsp × 1/2

To convert tablespoons to US fluid ounces, multiply by 0.5. The table below gives the values people look up most often, and the converter works for any number.

## Tablespoons to US fluid ounces table

*Common tablespoon values converted to US fluid ounces.*

| Tablespoons | US fluid ounces |
| --- | --- |
| 1 tbsp | 0.5 |
| 2 tbsp | 1 |
| 3 tbsp | 1.5 |
| 4 tbsp | 2 |
| 5 tbsp | 2.5 |
| 10 tbsp | 5 |
| 15 tbsp | 7.5 |
| 20 tbsp | 10 |
| 25 tbsp | 12.5 |
| 30 tbsp | 15 |
| 40 tbsp | 20 |
| 50 tbsp | 25 |
| 75 tbsp | 37.5 |
| 100 tbsp | 50 |
| 250 tbsp | 125 |
| 500 tbsp | 250 |
| 1,000 tbsp | 500 |

## How the conversion works

The relationship is fl oz = tbsp × 1/2. Both units measure volume, so the conversion is a fixed factor that never changes. The figure is exact rather than approximate: since the international yard and pound agreement of 1959, an inch is defined as exactly 25.4 millimetres and a pound as exactly 0.45359237 kilograms, and every other imperial and US customary unit here is derived from those two.

## Common questions

### How many US fluid ounces are in one tablespoon?

One tablespoon equals 0.5 US fluid ounces. fl oz = tbsp × 1/2.

### How do you convert tablespoons to US fluid ounces?

Use fl oz = tbsp × 1/2. So 10 tbsp is 5 fl oz.

### How many tablespoons are in one US fluid ounce?

One US fluid ounce equals 2 tablespoons, which is the reverse of the conversion above.

## Related pages

- [US fluid ounces to Tablespoons](https://atoneplace.net/convert/fl-oz-to-tablespoons/)
- [Tablespoons to Liters](https://atoneplace.net/convert/tablespoons-to-liters/)
- [Tablespoons to Milliliters](https://atoneplace.net/convert/tablespoons-to-ml/)
- [Tablespoons to Cubic meters](https://atoneplace.net/convert/tablespoons-to-cubic-meters/)
- [Tablespoons to US gallons](https://atoneplace.net/convert/tablespoons-to-gallons/)
- [Tablespoons to US quarts](https://atoneplace.net/convert/tablespoons-to-quarts/)
- [Tablespoons to US pints](https://atoneplace.net/convert/tablespoons-to-pints/)
- [Tablespoons to US cups](https://atoneplace.net/convert/tablespoons-to-cups/)
- [Tablespoons to Teaspoons](https://atoneplace.net/convert/tablespoons-to-teaspoons/)

## Sources

- Guide for the Use of the International System of Units (SP 811) — NIST (https://www.nist.gov/pml/special-publication-811) [Public domain (US Government)]
- The International System of Units (SI Brochure) — Bureau International des Poids et Mesures (https://www.bipm.org/en/publications/si-brochure)
- Calculated on this page — At One Place (/about/)