How big is Falcon 9?
Falcon 9: 70 m (230 ft). Measured as height — full vehicle height.
Source: Wikipedia — Falcon 9
Where it sits
Among the 14 vehicles & ships on this page Falcon 9 ranks 10th from the top by size. The largest in the group is Emma Maersk at 397 m, which is 5.67× the size of Falcon 9, while the smallest, Tesla Model 3, is 4.69 m.
Stand an adult of 1.7 m beside it and the ratio is 41.2×: you would need 41 people stacked head to foot to match its size.
In everyday distances
It fits inside a football pitch 1.5 times over — a pitch is about 105 m and Falcon 9 is only 70 m.
Walking at an easy 1.4 m/s you cover 70 m in 50 seconds. A jet at 900 km/h covers it in 280 milliseconds.
Next to its neighbours in size
The nearest thing larger than it in this collection is Airbus A380 at 72.7 m (239 ft), 1.04× the size. Note the two figures are not the same measurement: for Falcon 9 it is height, for Airbus A380 it is length.
The nearest thing smaller is Concorde at 61.7 m (202 ft), so Falcon 9 is 1.14× as big as it. They sit in the same group.
Against fixed yardsticks
Against three fixed yardsticks — Eiffel Tower (330 m) is 4.71× the size of Falcon 9; Falcon 9 is 2.34× the size of blue whale (29.9 m); Earth (12,742 km) is 182,029× the size of Falcon 9.
How this figure was taken
Vehicles are listed by overall length. Rockets are the exception and are given as full stack height standing on the pad. Everything is drawn standing upright so one scale holds.
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.
Read the rest — common questions
How big is the Falcon 9?
70 m (230 ft), measured as height: full vehicle height.
Where does the Falcon 9 rank among vehicles & ships?
Number 10 of 14 on this site, from Emma Maersk at 397 m down to Tesla Model 3 at 4.69 m.
What is the next size up?
Airbus A380, at 72.7 m, is 1.04× the size.
What is the next size down?
Concorde, at 61.7 m, is 1.14× smaller.
How reliable is the figure?
It is taken from the cited Wikipedia article and states its basis (full vehicle height). Values are rounded, and where individuals differ the figure is a representative one, so expect small differences from other sources.