That cant be answered because space is almost infinite and we have no knowledge on how many gas giants there are (but there must be over a million millions) let alone how big every single one is. So simply put there is no answer to your question.
Jupiter is the largest of the Gas Giant planets in our solar system. It is known for its massive size and intense magnetic field.
Jupiter has the largest diameter among the gas giants in our solar system.
Of the Jovian (gas giant) planets, Neptune is the smallest while Jupiter is the largest.
The gas giants in our solar system from smallest to largest are Uranus, Neptune, Saturn, and Jupiter. Jupiter is the largest gas giant in our solar system, followed by Saturn, Neptune, and then Uranus.
The largest gas giant in our solar system with multiple moons is Jupiter. Saturn is second, with almost as many moons (around 60), followed by Uranus and Neptune.
Saturn is the second largest
Jupiter is the largest of the Gas Giant planets in our solar system. It is known for its massive size and intense magnetic field.
Saturn
Jupiter has the largest diameter among the gas giants in our solar system.
Jupiter is the largest planet in the Milky Way Galaxy. It is formed from gas and is also known as the Gas Giant
Of the Jovian (gas giant) planets, Neptune is the smallest while Jupiter is the largest.
Jupiter is the largest planet in our solar system and is primarily composed of gas, mainly hydrogen and helium. It is known as a gas giant, with no solid surface.
Saturn.
You cant land on a gas giant But probes have gone "inside" gas giants
Saturn has the largest family of moons.
Saturn.
For the same reason that our atmosphere on Earth does not escape into space - gravity.