Orders of magnitude (length)

Orders of magnitude (length)

Powers of 103 meters	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 mm foot = 305 mm yard = 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 Moon 13 000 km - diameter of Earth 40 000 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 m parsec = 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