For this case we must make a conversion. By definition, we have to:
1 liter equals 1000 milliliters.
So, we make a rule of three:
1L ------------> 1000mL
x ---------------> 1580mL
Where the variable "x" represents the amount of liters equivalent to 1580 milliliters.
![x = \frac {1580 * 1} {1000}\\x = 1.58](https://img.qammunity.org/2020/formulas/mathematics/middle-school/jkwpvk5vd5asfq2bvv93cz647b6ludbz1n.png)
Thus, 1580 milliliters equals 1.58 liters.
Anwer:
1.58 liters