One liter equals two Jin of water, so 1.3 liter equals 2.6 Jin of water.

One liter = 1000 ml. The milliliter is unit of volume, corresponding to cubic centimeter, and the main unit of unit of volume is liter (L). 1L= 1000mL, 1000ml = 1000m3, 1000ml = 1 cubic decimeter.

During the Qin and Han dynasties, one liter was about 180 ~ 220 ml. It increased greatly in Wei and Jin dynasties, and it was about 600 ~ 660 ml per liter in Sui, Tang, Liao and Song dynasties. It continued to grow in the Song and Yuan Dynasties, rising to about 1000 ml in the first day of the Ming Dynasty, and has been growing since then.