To convert liters to cubic centimeters (cm³), you can use the conversion factor that 1 liter is equal to 1,000 cubic centimeters.
So, to convert 7.4 liters to cm³:
\[ 7.4 , \text{liters} \times 1,000 , \text{cm}^3/\text{liter} = 7,400 , \text{cm}^3 \]
Therefore, 7.4 liters is equal to 7,400 cm³.