Christ the Redeemer vs Blue whale
Christ the Redeemer and blue whale are the same size to within half a percent.
Stacking one on the other changes nothing — they match.
The comparison in numbers
| Thing | Size | In feet | Measured as |
|---|---|---|---|
| Christ the Redeemer | 30 m | 98.4 ft | height |
| Blue whale | 29.9 m | 98.1 ft | length |
What the scale shows
Christ the Redeemer and blue whale are the same size to within half a percent. One is among the buildings & towers and the other among the animals, so the figures are standing in for different kinds of size — read the basis below.
Walking pace is 1.4 m/s, so crossing Christ the Redeemer's 30 m takes 21 seconds and blue whale's 29.9 m takes 21 seconds.
Read the rest — 7 more sections
What each figure means
The figure for Christ the Redeemer is its height (the statue alone (38 m with its pedestal)). The figure for blue whale is its length (the longest reliably measured individual).
Crossing them
In people: Christ the Redeemer is 18 adults of 1.7 m tall, blue whale is 17.6. By size Christ the Redeemer is 23rd of the 23 buildings & towers on this site, while blue whale is 1st of the 23 animals.
How to read these two figures
Before trusting any comparison, check what each number measures. The Christ the Redeemer is given as a height, the statue alone (38 m with its pedestal). The blue whale is given as a length, the longest reliably measured individual. One is a height and the other is a length, 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.
Building heights depend on the rule used: architectural height counts spires but not antennas, tip height counts everything. The basis is named with each figure. Animal sizes vary from one individual to the next, so each figure says which individual or average it describes. Heights are taken at the shoulder or standing; lengths run nose to tail tip unless stated.
Where the pair sits among all the sizes here
Across all 86 things on this site, the Christ the Redeemer is number 62 from the top and the blue whale is number 63.
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 lower third of the list.
Time to cross each one
A sprinter holding about 10 m/s covers the Christ the Redeemer in 3 seconds and the blue whale in 3 seconds. Sound, at about 343 m/s in air, takes 87 milliseconds for the larger and 87 milliseconds for the smaller. A jet cruising at 900 km/h needs 120 milliseconds and 120 milliseconds.
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 1× ratio as the sizes.
The same figures in other units
The Christ the Redeemer measures 30 m, which is 98.4 ft or 32.8 yards. The blue whale measures 29.9 m, which is 98.1 ft.
Questions people ask about this pair
Which is bigger, the Christ the Redeemer or the blue whale?
They match to within half a percent on the figures used here.
Are the two figures measured the same way?
No. The Christ the Redeemer is a height (the statue alone (38 m with its pedestal)) and the blue whale is a length (the longest reliably measured individual), so read the comparison as overall extent.
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.