Ceres vs Mount Everest
Ceres (939 km) is 106× the size of Mount Everest (8,848.86 m).
106 Mount Everests stacked on end would reach the height of Ceres. The gap between them is 931 km (3,052,989 ft).
The comparison in numbers
| Thing | Size | In feet | Measured as |
|---|---|---|---|
| Ceres | 939 km | 3,082,021 ft | diameter |
| Mount Everest | 8,848.86 m | 29,032 ft | elevation |
What the scale shows
Ceres (939 km) is 106× the size of Mount Everest (8,848.86 m). The gap between them is 931 km (3,052,989 ft). One is among the planets & moons and the other among the mountains, so the figures are standing in for different kinds of size — read the basis below.
Draw both on one baseline and the smaller one fills 0.9% of the frame while the larger one runs to the top. At 106× the smaller one is barely a mark on the drawing — that is the scale, not a rendering error.
Read the rest — 8 more sections
What each figure means
The figure for Ceres is its diameter (mean diameter). The figure for Mount Everest is its elevation (summit elevation above sea level (2020 survey)).
Crossing them
At a jet's 900 km/h, Ceres's 939 km would take 63 minutes and Mount Everest's 8,848.86 m would take 35 seconds.
In people: Ceres is 552,588 adults of 1.7 m tall, Mount Everest is 5,205.2. By size Ceres is 16th of the 16 planets & moons on this site, while Mount Everest is 1st of the 10 mountains.
How to read these two figures
Before trusting any comparison, check what each number measures. Ceres is given as a diameter, mean diameter. Mount Everest is given as an elevation, summit elevation above sea level (2020 survey). One is a diameter and the other is a elevation, so the drawing stands them side by side by convention: everything is stood upright on a single baseline so one scale can hold. That is a fair way to compare overall extent, not a claim that the two are oriented the same way in real life.
Worlds are listed by diameter. Gas giants are not round, so equatorial diameter is used for them and mean diameter for the rest. All figures are rounded from published mission data. Elevation is measured from mean sea level to the summit, not from the base of the mountain. Surveys are revised, so a figure here can differ from an older atlas by a few metres.
Where the pair sits among all the sizes here
Across all 86 things on this site, Ceres is number 16 from the top and Mount Everest is number 17. No other item falls between them, so in this collection they are direct neighbours.
Because the collection spans 13 mm up to 1,392,700 km, a ratio of 107,130,769,231× from smallest to largest, the position of a pair says a lot: both sit in the upper third of the list.
What the length ratio hides
A length ratio of 106× is easy to picture, but area and volume grow faster than length. If two objects had exactly the same shape, Ceres would have about 11,270× the surface or footprint of Mount Everest, and about 1,196,437× the volume. These two are not the same shape, so treat the figures as an upper bound for an imaginary scaled copy, not as a measurement of either one.
The drawing above shows length only. Mount Everest is drawn 0.9% as tall as Ceres, but the equivalent share of footprint would be only 0.009%, which is why the smaller one looks even slighter than the numbers alone suggest.
Time to cross each one
Light travels at 299,792,458 m/s, so it crosses Ceres (939 km) in 3 milliseconds and Mount Everest (8,848.86 m) in 30 microseconds. A jet at 900 km/h would take 63 minutes for the larger and 35 seconds for the smaller.
These times assume a straight line and constant speed, which no real crossing has, but they turn a number in metres into something the body understands. At any fixed speed the travel times keep the same 106× ratio as the sizes.
The same figures in other units
Ceres measures 939 km, which is 3,082,021 ft or 583.7 miles. Mount Everest measures 8,848.86 m, which is 29,032 ft or 5.5 miles.
The difference between them is 931 km (3,052,989 ft). In kilometres the smaller one is 8.85 against 939.4, so the 106× ratio holds in every unit; only the numbers on the ruler change.
Questions people ask about this pair
Which is bigger, Ceres or Mount Everest?
Ceres is bigger. At 939 km it is 106× the size of Mount Everest, which is 8,848.86 m.
How many times does Mount Everest fit along Ceres?
106 whole times, with 1,420.84 m left over, using 8,848.86 m for each.
Are the two figures measured the same way?
No. Ceres is a diameter (mean diameter) and Mount Everest is a elevation (summit elevation above sea level (2020 survey)), so read the comparison as overall extent.
How does the gap look in people?
Taking an adult of 1.7 m, Ceres is about 552,588 people tall and Mount Everest is about 5,205.2. The gap of 931 km is 547,383 people.
Where do the numbers come from?
Each item has its own page that names the measurement and links to the Wikipedia article it was taken from. Some figures are rounded, and animals vary from one individual to the next, so treat them as representative values rather than records for every case.
How the sizes are taken. Each figure says what it measures — height, length, diameter or elevation — and for which individual or convention. Everything is drawn standing upright on one baseline so a single scale holds, including things that are long rather than tall. Values come from the linked Wikipedia article for each item.