4L is equal to

Options

A. 4000 mL
B. 400 mL
C. 40000 mL
D. 400000 mL

Answer

To solve the question "4L is equal to how many milliliters?", we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Units**: We need to convert liters (L) to milliliters (mL). It's important to know the relationship between these units.

2. **Know the Conversion Factor**:
- 1 liter (L) is equal to 1000 milliliters (mL).
- This means that to convert liters to milliliters, we multiply the number of liters by 1000.

3. **Set Up the Calculation**:
- We have 4 liters, so we will multiply 4 by the conversion factor of 1000.
- The equation will look like this:
\[ 4 \, \text{L} \times 1000 \, \frac{\text{mL}}{\text{L}} \]

4. **Perform the Multiplication**:
- Now, we calculate:
\[ 4 \times 1000 = 4000 \, \text{mL} \]

5. **Conclusion**:
- Therefore, 4 liters is equal to 4000 milliliters.

### Final Answer:
4L is equal to 4000 mL.

---