What is the size of the giraffe?

Giraffes are the world's tallest animals, some males having a height of 6 meters and weigh up to 1,900 kg.
Males reach a towering 19 feet tall and weigh between 2400 and 4250 pounds. Females measure up to 17 feet tall and weigh between 1540 and 2600 pounds. A lot of this height and weight is because of the giraffe's incredibly long neck, which can be 8 feet in length and can weigh almost 500 pounds.
Wikipedia says:

They can be 4.8 to 5.5 metres (16 to 18 feet) tall and weigh up to 1,360 kilograms (3,000 pounds). The record-sized bull was 5.87 m (19.2 feet) tall and weighed approximately 2,000 kg (4,400 lbs.).

ANSWER

To make it easier around 16ft. tall

Another answer:

Giraffes are usually 14' to 17' tall when they're adults. The tallest giraffe on record was a male who grew to be 20' tall.
6 foot 3
about 14 to 15 feet