How big is the Hubble Space Telescope next to a polar bear?
The Hubble Space Telescope measures 13.2 m (43.3 ft) end to end, and a polar bear measures 2.5 m (8.2 ft) end to end. The Hubble Space Telescope comes to 5.28 times the length of a polar bear, a difference of 10.7 m (35.1 ft). Take 5 polar bears laid end to end and you reach 12.5 m (41 ft), still 70 cm (27.6 in) short of the Hubble Space Telescope; one more would overshoot by 1.8 m (5.91 ft). The Hubble Space Telescope is written in tens of metres and a polar bear in single metres, a whole band of scale apart.
| Object | Real size | Axis measured | What the figure covers |
|---|---|---|---|
| Hubble Space Telescope | 13.2 m 43.3 ft |
Length | Whole body or structure, end to end |
| Polar Bear | 2.5 m 8.2 ft |
Length | Whole body or structure, end to end |
Both figures, Hubble Space Telescope and Polar Bear, come from the Size It Up measurement set, one real-world size and one measured axis per object, last checked in September 2026; outline provenance is listed on the sources page.
Why this one is hard to judge by eye
The Hubble Space Telescope is drawn about 5.28 times as wide as a polar bear as well as 5.28 times its length, so the area it takes in the frame grows faster than the figure anyone quotes. The Hubble Space Telescope sits in the range with no handy yardstick: too big to hold against anything you have carried, too small to need a horizon, so it and a polar bear end up filed under the same vague heading of very large.
What each figure covers
Hubble Space Telescope. Hubble is measured along the tube, which makes it roughly the size of a bus. The mirror inside is 2.4 m across, and that is the number deciding what it can see.
Polar Bear. Polar bears are measured nose to tail on all fours. Standing upright they reach considerably higher, and the two figures are regularly quoted as though they were the same one.
The Hubble Space Telescope and a polar bear are both quoted as a length, which is what makes the ratio above a like-for-like figure.
What else is about that size?
Measured the same way, Hubble Space Telescope at 13.2 m sits within a tenth of X-wing Starfighter at 12.5 m, Whale Shark at 12.1 m and T. rex at 12 m. Polar Bear at 2.5 m has Bull Shark at 2.4 m, Harley Davidson at 2.4 m and Horse at 2.4 m for company, within a tenth. Swapping any of those in for the Hubble Space Telescope would move its ratio to a polar bear by less than 10%.