Converting 240ml to oz depends on whether “oz” means fluid ounces (volume) or ounces (mass). In everyday cooking and beverage measurements, oz almost always means US fluid ounces (fl oz).
The keyword 240ml to oz is interpreted as milliliters to US fluid ounces. This is a volume-to-volume conversion; it does not require density.
US fluid ounce definition: \(1\ \text{US fl oz} = 29.5735295625\ \text{mL}\).
Therefore, \(1\ \text{mL} = \dfrac{1}{29.5735295625}\ \text{US fl oz} \approx 0.0338140\ \text{US fl oz}\).
Step-by-step method (mL to US fl oz)
- Start with the volume in milliliters, \(V_{\text{mL}}\).
- Divide by \(29.5735295625\ \dfrac{\text{mL}}{\text{US fl oz}}\) so that milliliters cancel and fluid ounces remain.
- Round to the precision needed for the context (recipes often use 1–2 decimals).
The conversion formula is:
\[ V_{\text{fl oz}} = \frac{V_{\text{mL}}}{29.5735295625} \]Worked calculation: convert 240 mL to US fluid ounces
Substitute \(V_{\text{mL}} = 240\ \text{mL}\):
\[ V_{\text{fl oz}} = \frac{240}{29.5735295625} \approx 8.115369\ \text{US fl oz} \]Rounded to two decimal places: \(8.12\ \text{US fl oz}\).
Quick reference table (common kitchen amounts)
| Volume (mL) | US fluid ounces (fl oz) | Rounded (2 d.p.) |
|---|---|---|
| 30 | \(\dfrac{30}{29.5735295625} \approx 1.01442\) | 1.01 |
| 120 | \(\dfrac{120}{29.5735295625} \approx 4.05768\) | 4.06 |
| 240 | \(\dfrac{240}{29.5735295625} \approx 8.11537\) | 8.12 |
| 250 | \(\dfrac{250}{29.5735295625} \approx 8.45351\) | 8.45 |
| 500 | \(\dfrac{500}{29.5735295625} \approx 16.9070\) | 16.91 |
Visualization: converting 240 mL to fl oz by scaling
Note about UK (imperial) fluid ounces
In some contexts, “oz” can mean the UK (imperial) fluid ounce. If that is required, the factor changes because \(1\ \text{imperial fl oz} = 28.4130625\ \text{mL}\). Then:
\[ V_{\text{imp fl oz}} = \frac{240}{28.4130625} \approx 8.447\ \text{imperial fl oz} \]Unless stated otherwise, 240ml to oz is typically interpreted as US fluid ounces.