What is the largest freshwater lake by volume?

Lake Baikal is the largest freshwater lake by volume due to its incredible depth and vast capacity. Located in southern Siberia, Russia, Lake Baikal holds a staggering 23,615.39 cubic kilometers of water, which is roughly 20% of the world's unfrozen surface freshwater. Its depths reach up to 1,642 meters, making it the deepest lake on Earth. This enormous volume is attributed to the lake's origin as a rift lake formed some 25 million years ago, as well as its isolation from other bodies of water, allowing it to retain its pristine and abundant freshwater resources.