What is the estimated pressure at Jupiter's core?

The pressure at a planet’s core is caused by the weight of all the material above it pressing down under the force of gravity. At Jupiter’s core, the pressure is estimated at 100 million atmospheres, or 735,000 tons per square inch. In comparison, the Earth’s core sustains a pressure of 3 million atmospheres, or 22,000 tons per square inch. To put this in perspective, the pressure at the bottom of the Mariana Trench, the deepest part of the Pacific Ocean, is a “mere” 8 tons per square inch. At these extremely high pressures, matter takes on strange properties; diamond, for example, may become a liquid metallic substance, pooling into gigantic “oceans” inside the larger planets.

Beneath the liquid hydrogen layer is a 40,000-kilometer (25,000-mile) deep sea of liquid metallic hydrogen. Unknown on Earth, liquid metallic hydrogen forms under the extreme pressures that exist on Jupiter. At this depth, the pressure is more than three million times what it is at the surface of the Earth. Hydrogen molecules are so tightly packed that they break up and become electrically conductive. Scientists believe it is this electrically conductive liquid that causes Jupiter's intense magnetic field ... Down deep, it's hot in there! The temperature at the core of Jupiter is estimated to be 30,000 degrees Celsius (about 55,000 degrees Fahrenheit). This heat makes its way up through Jupiter and shines through cloud-free holes in the clouds, which are appropriately named "hot spots". Possibly solid, Jupiter's core is estimated to be about one-and-a-half times Earth's diameter, yet ten to thirty times more massive. If there is a solid surface, one could not stand on it without being crushed by the incredible weight of the atmosphere above.