Home / Compare / Head to Head

Head to Head

Pick any two things and see who wins, by how much, and why it matters.

This page lists 11 source-checked comparisons in Head to Head, ranked from the biggest value to the smallest. Each table shows its unit, the year the figures describe, how sure we are, the date we last verified it and the sources behind it.

Topics: Animals, Buildings, Planets and Moon, Mountains and rivers, Food and nature, Engineering, Food.

Try it in the Compare Lab

How long they live (years)

Estimated Animals · Verified 2026-10-27 · WWV-CP-AN-001

#	Name	Value (years)
1	Ocean quahog Maximum reported lifespan	507 years
2	Greenland shark Minimum life expectancy	272 years
3	Aldabra giant tortoise Adwaita Estimated age	255 years
4	Bowhead whale Estimated lifespan	211 years

Figures come from the linked record entries; open each one for its own note and sources.

Sources

How far birds fly (km)

Confirmed Animals · Verified 2026-10-27 · WWV-CP-AN-002

#	Name	Value (km)
1	Arctic tern Average yearly round trip	70,900 km
2	Bar-tailed godwit, 2022 record Nonstop flight	13,560 km
3	Bar-tailed godwit, 2021 record Nonstop flight	13,050 km
4	Bar-tailed godwit, 2020 record Nonstop flight	12,854 km

Figures come from the linked record entries; open each one for its own note and sources.

Sources

How fast they go (km/h)

Estimated Animals · Verified 2026-10-27 · WWV-CP-AN-003

#	Name	Value (km/h)
1	Peregrine falcon Estimated dive speed	320 km/h
2	Cheetah, upper estimate Short sprint (about 70 mph)	113 km/h
3	Wild cheetah, GPS-logged best Measured top speed	93 km/h

Figures come from the linked record entries; open each one for its own note and sources.

Sources

How big they get (meters)

Estimated Animals · Verified 2026-10-27 · WWV-CP-AN-004

#	Name	Value (m)
1	Blue whale Maximum confirmed length	29.9 m
2	Saltwater crocodile Largest captive length	6.17 m
3	Giraffe Maximum height, adult male	5.5 m

Figures come from the linked record entries; open each one for its own note and sources.

Sources

How tall they stand (meters)

Confirmed Buildings · As of 2024 · Verified 2026-10-28 · WWV-CP-HH-001

#	Name	Value (m)
1	Burj Khalifa Height, UAE	828 m
2	Merdeka 118 Height, Malaysia	678.9 m
3	Shanghai Tower Height, China	632 m
4	Lotte World Tower Height, South Korea	554.5 m
5	One World Trade Center Height, United States	541.3 m
6	Great Pyramid of Giza Original height, built c. 2560 BCE	146 m

Architectural height. Burj Khalifa's 828 m was ratified by the CTBUH. The Great Pyramid's height is from our own sourced story and is its original height.

Sources

How wide they are (km)

Confirmed Planets and Moon · As of NASA fact sheet · Verified 2026-10-28 · WWV-CP-HH-002

#	Name	Value (km)
1	Jupiter Equatorial diameter	142,984 km
2	Saturn Equatorial diameter	120,536 km
3	Uranus Equatorial diameter	51,118 km
4	Neptune Equatorial diameter	49,528 km
5	Earth Equatorial diameter	12,756 km
6	Venus Equatorial diameter	12,104 km
7	Mars Equatorial diameter	6,792 km
8	Mercury Equatorial diameter	4,879 km
9	The Moon Diameter	3,475 km

Equatorial diameter. NASA's two pages differ by 1 km for Mercury (4,879 or 4,880), so the first page's figure is shown.

Sources

Highest peak on each continent (meters)

Confirmed Mountains and rivers · As of Wikipedia, 2025 · Verified 2026-11-06 · WWV-CP-HH-010

#	Name	Value (m)
1	Mount Everest Asia	8,848.86 m
2	Aconcagua South America	6,961 m
3	Denali North America	6,190 m
4	Kilimanjaro Africa	5,895 m
5	Mount Elbrus Europe	5,642 m
6	Vinson Massif Antarctica	4,892 m
7	Puncak Jaya Oceania	4,884 m

The Seven Summits, using Puncak Jaya for Oceania. Heights are the commonly published values and can change slightly after new surveys.

Sources

Energy in one gram of each nutrient (kilocalories)

Confirmed Food and nature · As of FAO, 2003 · Verified 2026-11-06 · WWV-CP-HH-016

#	Name	Value (kcal)
1	Fat Highest of the three main nutrients	9 kcal
2	Alcohol Not a nutrient	7 kcal
3	Protein Builds tissue	4 kcal
4	Carbohydrate Main fuel	4 kcal
5	Dietary fibre Partly digested	2 kcal

Standard Atwater general factors used on food labels. Fibre is approximate.

Sources

Tallest bridges (meters)

Confirmed Engineering · As of 2026 · Verified 2026-11-06 · WWV-CP-HH-017

#	Name	Value (meters)
1	Changtai Yangtze River Bridge Height	352 meters
2	Millau Viaduct Height	336.4 meters
3	Pingtang Bridge Height	332 meters
4	Husutong Yangtze River Bridge Height	330 meters
5	1915 Çanakkale Bridge Height	324.1 meters
6	Yavuz Sultan Selim Bridge Height	322 meters
7	Russky Bridge Height	319.1 meters
8	Sutong Bridge Height	300.4 meters

Structural height from the cited list.

Sources

Biggest wine producers (tonnes a year)

Estimated Food · As of 2026 · Verified 2026-11-06 · WWV-CP-HH-018

#	Name	Value (tonnes)
1	Italy Wine produced	5,088,500 tonnes
2	France Wine produced	3,713,200 tonnes
3	Spain Wine produced	3,700,588 tonnes
4	United States Wine produced	2,057,021 tonnes
5	China Wine produced	1,814,400 tonnes
6	Australia Wine produced	1,482,000 tonnes
7	Chile Wine produced	1,343,729 tonnes
8	Argentina Wine produced	1,248,155 tonnes

Wine production from the cited list.

Sources

Biggest milk producers (tonnes a year)

Estimated Food · As of 2026 · Verified 2026-11-06 · WWV-CP-HH-019

#	Name	Value (tonnes)
1	India Milk produced	213,779,230 tonnes
2	United States Milk produced	102,747,320 tonnes
3	Pakistan Milk produced	62,557,950 tonnes
4	China Milk produced	39,914,930 tonnes
5	Brazil Milk produced	35,944,056 tonnes
6	Germany Milk produced	33,188,890 tonnes
7	Russia Milk produced	32,977,956 tonnes
8	France Milk produced	25,028,850 tonnes

Milk production from the cited list.

Sources