Difference between 500ml and 1000ml hot water bottle

1000 ml hot water bottle is a liter hot water bottle, about ten centimeters! Ml is the unit of volume, which is what we usually call mL, 1 mL = 1 cm3, so 1000ml= 1000 cm3 is equivalent to a cube with a height of 10 cm. The most suitable size of thermos bottle is 19*9*3cm, which means that it can hold seven or two glasses of water. 1000ml is about 15cm 10cm.