A baby Elephant only weighs 1-2 tons.
A baby elephant can be as large as three feet tall and might weigh as much as 200 pounds. Baby elephants stay with their mothers for many years.
135 pounds is 61.2 kilos.
530 US gallons of water is 2007.37 kilos.
depending on the length it is around 3--7 Kilos
Most airplanes weigh far more than an elephant, but many weigh a lot less.
The African Savannah Elephant can weigh up to 7500 KG or up to 16,500 LBS.
4 kilos is 8.8 pounds. (about 2.2 pounds per kilo)