How big is it?
Every object in SizeItUp, smallest to largest, with the exact thing measured and where the number comes from. Open any one for a to-scale size comparison with its neighbours.
Classic
39 objects. Smallest: Dime, 17.91 mm. Largest: Burj Khalifa, 828 m. Sizes from standards, sports rulebooks, the US Mint and official landmark figures.
- Dime (US ten cents)17.91 mm across · 0.7051 in
- Penny (US one cent)19.05 mm across · 0.75 in
- Nickel (US five cents)21.21 mm across · 0.835 in
- US quarter 24.26 mm across · 0.9551 in
- LEGO brick (2 x 4)31.8 mm long · 1.252 in
- Table tennis ball 40 mm across · 1.575 in
- Golf ball 42.67 mm across · 1.68 in
- AA battery 50.5 mm long · 1.988 in
- Rubik's Cube (3 x 3)57 mm · 2.244 in
- Tennis ball 67 mm across · 2.638 in
- Baseball 73.8 mm across · 2.906 in
- Credit card (ID-1 size)85.6 mm · 3.37 in
- Golf hole 10.8 cm across · 4.252 in
- US dollar bill 15.6 cm · 6.142 in
- Bowling ball (Ten-pin)21.83 cm across · 8.594 in
- Football (Size 5)21.96 cm across · 8.646 in
- Basketball (Size 7)24.19 cm across · 9.524 in
- Letter paper (US Letter)27.94 cm · 11 in
- A4 sheet of paper (Portrait)29.7 cm · 11.69 in
- Bowling pin (Ten-pin)38.1 cm tall · 1.25 ft
- Shipping container (20 ft)6.058 m long · 19.88 ft
- Football goal (Full size)7.32 m · 24.02 ft
- Shipping container (40 ft)12.192 m long · 40 ft
- Mount Rushmore (Washington's head)18.3 m tall · 60.04 ft
- Cricket pitch 20.12 m long · 66.01 ft
- Tennis court 23.77 m long · 77.99 ft
- Basketball court (FIBA)28 m long · 91.86 ft
- Christ the Redeemer (Statue only)30 m tall · 98.43 ft
- Statue of Liberty (Statue only)46.05 m tall · 151.1 ft
- Olympic swimming pool 50 m long · 164 ft
- Leaning Tower of Pisa 56 m tall · 183.7 ft
- Elizabeth Tower (Big Ben)96.3 m tall · 315.9 ft
- American football field (NFL)109.728 m long · 360 ft
- Great Pyramid of Giza (Today)137.5 m tall · 451.1 ft
- Washington Monument 169.046 m tall · 554.6 ft
- Golden Gate Bridge (Tower)227 m tall · 744.8 ft
- Eiffel Tower 330 m tall · 1,083 ft
- Empire State Building 443.2 m tall · 1,454 ft
- Burj Khalifa 828 m tall · 2,717 ft
Cosmic Scale
39 objects. Smallest: Perseverance, 3 m. Largest: Sirius A, 2,385,400 km. Sizes from NASA, JPL and the agencies that built each spacecraft.
- Perseverance (Mars rover)3 m long · 9.843 ft
- Voyager's dish (High-gain antenna)3.66 m across · 12.01 ft
- Apollo Lunar Module 7.04 m tall · 23.1 ft
- Hubble Space Telescope 13.2 m long · 43.31 ft
- James Webb Space Telescope (Sunshield)21.197 m · 69.54 ft
- Space Shuttle orbiter (Without the fuel tank)37.2 m long · 122 ft
- Falcon 9 (SpaceX)70 m tall · 229.7 ft
- International Space Station (Seen from above)109 m long · 357.6 ft
- Saturn V (Moon rocket)111 m tall · 364.2 ft
- Starship (Full stack)124 m tall · 406.8 ft
- Bennu (Asteroid)484 m across · 1,588 ft
- Mount Kilimanjaro (Earth)5,895 m tall · 19,341 ft
- Mount Everest 8,848.86 m tall · 29,032 ft
- Halley's Comet (Nucleus)15 km long · 49,213 ft
- Olympus Mons (Mars)21.2 km tall · 13.17 mi
- Phobos (Moon of Mars)26 km long · 16.16 mi
- Grand Canyon (Earth)446 km long · 277.1 mi
- Vesta (Asteroid)522.77 km across · 324.8 mi
- Ceres (Dwarf planet)939.4 km across · 583.7 mi
- Charon (Moon of Pluto)1,214 km across · 754.3 mi
- Pluto (Dwarf planet)2,376 km across · 1,476 mi
- Triton (Moon of Neptune)2,706.8 km across · 1,682 mi
- Europa (Moon of Jupiter)3,121.6 km across · 1,940 mi
- The Moon 3,475 km across · 2,159 mi
- Io (Moon of Jupiter)3,643 km across · 2,264 mi
- Valles Marineris (Mars)3,870 km long · 2,405 mi
- Callisto (Moon of Jupiter)4,820.6 km across · 2,995 mi
- Mercury 4,879 km across · 3,032 mi
- Titan (Moon of Saturn)5,150 km across · 3,200 mi
- Ganymede (Moon of Jupiter)5,262.4 km across · 3,270 mi
- Mars 6,792 km across · 4,220 mi
- Venus 12,104 km across · 7,521 mi
- Earth 12,756 km across · 7,926 mi
- Neptune 49,528 km across · 30,775 mi
- Uranus 51,118 km across · 31,763 mi
- Saturn (Planet only)120,536 km across · 74,898 mi
- Jupiter 142,984 km across · 88,846 mi
- The Sun 1,391,400 km across · 864,580 mi
- Sirius A (The Dog Star)2,385,400 km across · 1,482,200 mi
Prehistoric Giants
31 objects. Smallest: Archaeopteryx, 50 cm. Largest: Blue whale, 27.1 m. Sizes from museum specimens, zoos and published papers.
- Archaeopteryx 50 cm long · 1.64 ft
- Dodo 70 cm tall · 2.297 ft
- Saber-toothed cat (Smilodon fatalis)1 m tall · 3.281 ft
- Lion (Adult male)1.2 m tall · 3.937 ft
- Polar bear (Adult male)1.52 m tall · 4.987 ft
- Hippopotamus (Large adult)1.6 m tall · 5.249 ft
- Adult man (US average)1.75 m tall · 5.741 ft
- Velociraptor 1.8 m long · 5.906 ft
- Ostrich (Adult male)2.4 m tall · 7.874 ft
- Arthropleura (Giant millipede)2.63 m long · 8.629 ft
- Woolly mammoth (Adult male)2.8 m tall · 9.186 ft
- Wandering albatross (Wings spread)3 m wingtip to wingtip · 9.843 ft
- Elephant bird (Madagascar)3 m tall · 9.843 ft
- Giant moa (South Island)3 m tall · 9.843 ft
- Komodo dragon (Large adult)3 m long · 9.843 ft
- African bush elephant (Adult male)3.2 m tall · 10.5 ft
- Giant ground sloth (Megatherium)3.5 m tall · 11.48 ft
- Saltwater crocodile (Adult male)5 m long · 16.4 ft
- Giraffe (Tall male)5.5 m tall · 18.04 ft
- Stegosaurus (Sophie, NHM London)5.6 m long · 18.37 ft
- Pteranodon (Wings spread)6 m wingtip to wingtip · 19.69 ft
- Reticulated python (Record holder)7.67 m long · 25.16 ft
- Ankylosaurus 8 m long · 26.25 ft
- Triceratops 9 m long · 29.53 ft
- Quetzalcoatlus (Wings spread)10.5 m wingtip to wingtip · 34.45 ft
- Tyrannosaurus rex (SUE, Field Museum)12.34 m long · 40.49 ft
- Titanoboa 13 m long · 42.65 ft
- Giraffatitan (Berlin skeleton)13.27 m tall · 43.54 ft
- Spinosaurus 14 m long · 45.93 ft
- Diplodocus (Dippy, NHM London)26 m long · 85.3 ft
- Blue whale (Large adult)27.1 m long · 88.91 ft