Orders of magnitude (length) in E notation
0 m 1 E-24 m 1 E-23 m 1 E-22 m 1 E-21 m 1 E-20 m 1 E-19 m 1 E-18 m 1 E-17 m 1 E-16 m 1 E-15 m 1 E-14 m 1 E-13 m 1 E-12 m 1 E-11 m 1 E-10 m 1 E-9 m 1 E-8 m 1 E-7 m 1 E-6 m 1 E-5 m 1 E-4 m 1 E-3 m 1 E-2 m 1 E-1 m 1 E0 m	1 E+1 m 1 E+2 m 1 E+3 m 1 E+4 m 1 E+5 m 1 E+6 m 1 E+7 m 1 E+8 m 1 E+9 m 1 E+10 m 1 E+11 m 1 E+12 m 1 E+13 m 1 E+14 m 1 E+15 m 1 E+16 m 1 E+17 m 1 E+18 m 1 E+19 m 1 E+20 m 1 E+21 m 1 E+22 m 1 E+23 m 1 E+24 m 1 E+25 m 1 E+26 m

To help compare different orders of magnitude this page lists lengths starting at 10⁶ m (1 Mm or 1,000 km).

Distances shorter than 10⁶ m

Conversions

1 megametre is equal to:

• 1 E+6 m
• approximately 621.37 miles
• Side of square with area 1,000,000 km²

Human-built structures

• 2,451 km — Length of the Alaska Highway
• 3,069 km — Length of Interstate 95 (from Houlton, Maine to Miami, Florida)
• 3,846 km — Length of U.S. Route 1 (from Fort Kent, Maine to Key West, Florida)
• 5,007 km — Estimated length of Interstate 90 (Seattle, Washington to Boston, Massachusetts)
• 6,400 km — Length of the Great Wall of China
• 7,821 km — Length of the Trans-Canada Highway, the world's longest national highway (from Victoria, British Columbia to St. John's, Newfoundland)
• 9,289 km — Length of the Trans-Siberian railway

Proposed

• 2,100 km — Length of proposed gas pipeline from Iran to India via Pakistan

Sports

• 1,200 km — the length of the Paris-Brest-Paris bicycling event

Nature

• 2,000 km — Distance from Beijing to Hong Kong as the crow flies
• 2,800 km — Narrowest width of Atlantic Ocean (Brazil-West Africa)
• 2,850 km — Length of the Danube river
• 2,205 km — Length of Sweden's total land boundaries
• 2,515 km — Length of Norway's total land boundaries
• 3,690 km — Length of the Volga river, longest in Europe
• 4,350 km — Length of the Huang He
• 4,715 km — Length of the Nile
• 4,800 km — Widest width of Atlantic Ocean (U.S.-Northern Africa)
• 5,100 km — Distance from Dublin to New York as the crow flies
• 6,270 km — Length of the Mississippi-Missouri River system
• 6,380 km — Length of the Yangtze River
• 6,762 km — Length of the Amazon system, longest on Earth
• 8,200 km — Distance from Dublin to San Francisco as the crow flies

Astronomical

• 1,000 km — Estimated shortest axis of trans-Neptunian object 2003 EL₆₁
• 1,186 km — Diameter of Charon, the largest moon of Pluto
• 1,280 km — Diameter of the trans-Neptunian object 50000 Quaoar
• 1,436 km — Diameter of Iapetus, one of Saturn's major moons
• 1,578 km — Diameter of Titania, the largest of Uranus' moons
• 1,960 km — Estimated longest axis of 2003 EL₆₁
• 2,320 km — Diameter of Pluto
• 2,400 km — Diameter of the dwarf planet Eris, the largest trans-Neptunian object found to date
• 2,707 km — Diameter of Triton, largest moon of Neptune
• 3,122 km — Diameter of Europa, the smallest Galilean satellite of Jupiter
• 3,475 km — Diameter of Earth's Moon
• 3,643 km — Diameter of Io, a moon of Jupiter
• 4,821 km — Diameter of Callisto, a moon of Jupiter
• 4,879 km — Diameter of Mercury
• 5,150 km — Diameter of Titan, the largest moon of Saturn
• 5,262 km — Diameter of Jupiter's moon Ganymede, the largest moon in the solar system
• 6,366 km — Radius of Earth
• 6,792 km — Diameter of Mars

Distances longer than 10⁷ m

See also

• Orders of magnitude (length)
• Megametre