## Encyclopedia > Orders of magnitude (length)

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# Orders of magnitude (length)

Orders of magnitude (length)

 Powers of 103meters equal to... example orders of magnitude 1 attometer 39 x 10-18 inches -- 1 am, 10 am, 100 am 1 femtometer 39 x 10-15 inches -- 1 fm, 10 fm, 100 fm 1 picometer 39 x 10-12 inches 1 Ångström = 100 pm 1 pm, 10 pm, 100 pm 1 nanometer 39 x 10-9 inches wavelengths of visible light 1 nm, 10 nm, 100 nm 1 micrometer 39 x 10-6 inches -- 1 µm, 10 µm, 100 µm 1 millimeter 0.039 inches inch = 25.4 mmfoot = 305 mmyard = 914 mm 1 mm, 1 cm, 10 cm 1 meter 39 inches -- 1 m, 10 m, 100 m 1 kilometer 0.62 miles mile = 1.6 km 1 km, 10 km, 100 km 1 000 km 621 miles 3 480 km - diameter of the Moon13 000 km - diameter of Earth40 000 km - circumference of Earth 106 m, 107 m, 108 m 1 million km 621 thousand miles astronomical unit = 150 million km 109 m, 1010 m, 1011 m 109 km 621 million miles -- 1012 m, 1013 m, 1014 m 1012 km 621 x 109 miles light year = 9.5 x 1015 mparsec = 3.1 x 1016 m 1015 m , 1016 m , 1017 m 1015 km 621 x 1012 miles -- 1018 m , 1019 m , 1020 m 1018 km 621 x 1015 miles -- 1021 m , 1022 m , 1023 m 1021 km 621 x 1018 miles -- 1024 m , 1025 m , 1026 m

The pages linked in the right-hand column contain lists of lengths that are of the same order of magnitude (power of ten). Rows in the table represent increasing powers of a thousand (3 orders of magnitude).

Orders of magnitude of other quantities: time, area, volume, mass

See also SI, SI prefixes, SI base units, units, length, orders of magnitude

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