When we talk about measuring liquids like water for gardening, we often use different units. **Milliliters** (ml) and **fluid ounces** are two common units for measuring how much liquid we have.

So, if we have **400 milliliters** of water, we can find out how many **fluid ounces** that is. To change milliliters into fluid ounces, we can use a simple math equation. The conversion is:

$$ 1 \text{ fluid ounce} \approx 29.57 \text{ ml} $$

To figure out how many ounces are in 400 ml, we can divide 400 by 29.57:

$$ \text{Fluid ounces} = \frac{400 \text{ ml}}{29.57 \text{ ml/ounce}} \approx 13.53 \text{ fluid ounces} $$

So, **400 milliliters** is about **13.53 fluid ounces**. This can help you understand how much water your plants need!

Here are **7 objects** that are **exactly equal** to **400 ml**:

- A medium-sized
**bottle of soda** - A standard
**cup of soup** - A large
**yogurt container** - A good-sized
**travel mug** - Two
**regular-sized cereal bowls**filled with water - A typical
**watering can**(small) - A standard
**juice box**(if you squeeze it all in)

Now you can visualize how much 400 ml of liquid really is!