The distance between the Sun and Pluto is not fixed because Pluto's orbit is highly elliptical.

Here are some key figures to understand the distance:

* Average distance: 5.9 billion kilometers (3.7 billion miles)

* Closest distance: 4.4 billion kilometers (2.7 billion miles)

* Farthest distance: 7.4 billion kilometers (4.6 billion miles)

So, the distance between the Sun and Pluto can vary greatly depending on its position in its orbit.