Convert Online Unit Length Kilometers to Astronomical Units
Convert Kilometers to Astronomical Units Use this free online length converter to change kilometers into astronomical units instantly. Type in the kilometers value, and the equivalent astronomical units is calculated for you in real time.
Convert from Select Unit Meters Kilometers Decimeters Centimeters Millimeters Micrometers Nanometers Miles Yards Feet Inches Lightyears Exameters Petameters Terameters Gigameters Megameters Hectameters Dekameters Microns Picometers Femtometers Attometers Megaparsecs Kiloparsecs Parsecs Astronomical Units Leagues Nautical Leagues (UK) Nautical Leagues (International) Leagues (statute) Nautical Miles (UK) Nautical miles (International) Miles (statute) Miles (US survey) Miles (Roman) Kiloyards Furlongs Furlongs (US survey) Chains Chains (US survey) Ropes Rod Rods (US survey) Perch Poles Fathoms Fathoms (US survey) ell Feet (US survey) Links link (US survey) Cubits (UK) Hands Span (cloth) Fingers (cloth) Nails (cloth) Inches (US survey) Barleycorns mil Microinches Angstroms Fermi Arpent Pica Point Twip aln Famns Caliber Centiinch Kens Russian archin Roman actus Vara De Tarea Vara Conuquera vara Castellana Cubit (Greek) Long Reed Reed Long cubits Handbreadth Fingerbreadth Planck length Electron radius (classical) Bohr radius Earth's equatorial radius Earth's polar radius Earth's distance from sun Sun's radius Select Unit Meters Kilometers Decimeters Centimeters Millimeters Micrometers Nanometers Miles Yards Feet Inches Lightyears Exameters Petameters Terameters Gigameters Megameters Hectameters Dekameters Microns Picometers Femtometers Attometers Megaparsecs Kiloparsecs Parsecs Astronomical Units Leagues Nautical Leagues (UK) Nautical Leagues (International) Leagues (statute) Nautical Miles (UK) Nautical miles (International) Miles (statute) Miles (US survey) Miles (Roman) Kiloyards Furlongs Furlongs (US survey) Chains Chains (US survey) Ropes Rod Rods (US survey) Perch Poles Fathoms Fathoms (US survey) ell Feet (US survey) Links link (US survey) Cubits (UK) Hands Span (cloth) Fingers (cloth) Nails (cloth) Inches (US survey) Barleycorns mil Microinches Angstroms Fermi Arpent Pica Point Twip aln Famns Caliber Centiinch Kens Russian archin Roman actus Vara De Tarea Vara Conuquera vara Castellana Cubit (Greek) Long Reed Reed Long cubits Handbreadth Fingerbreadth Planck length Electron radius (classical) Bohr radius Earth's equatorial radius Earth's polar radius Earth's distance from sun Sun's radius
Kilometers
km Astronomical Units
AU
How to use this Kilometers to Astronomical Units Converter 🤔 Follow these steps to convert given Kilometers value from Kilometers units to Astronomical Units units.
Enter the input Kilometers value in the text field. The given Kilometers is converted to Astronomical Units in realtime ⌚ using the formula, and displayed under the Astronomical Units label. You may copy the resulting Astronomical Units value using the Copy button. Calculation Calculation will be done after you enter a valid input.
Kilometers to Astronomical Units Conversion TableThe following table gives some of the most used conversions from Kilometers to Astronomical Units.
Kilometers (km ) Astronomical Units (AU ) 0 km 0 AU 1 km 6.68e-9 AU 2 km 1.337e-8 AU 3 km 2.005e-8 AU 4 km 2.674e-8 AU 5 km 3.342e-8 AU 6 km 4.011e-8 AU 7 km 4.679e-8 AU 8 km 5.348e-8 AU 9 km 6.016e-8 AU 10 km 6.685e-8 AU 20 km 1.3369e-7 AU 50 km 3.3423e-7 AU 100 km 6.6846e-7 AU 1000 km 0.00000668459 AU 10000 km 0.00006684587 AU 100000 km 0.00066845871 AU
Kilometers A kilometer (km) is a unit of length in the International System of Units (SI), equal to 0.6214 miles. One kilometer is one thousand meters.
The prefix "kilo-" means one thousand. A kilometer is defined by 1000 times the distance light travels in 1/299,792,458 seconds. This definition may change, but a kilometer will always be one thousand meters.
Kilometers are used to measure distances on land in most countries. However, the United States and the United Kingdom still often use miles. The UK has adopted the metric system, but miles are still used on road signs.
Astronomical Units An astronomical unit (AU) is a unit of length used in astronomy to measure distances within our solar system. One astronomical unit is equivalent to approximately 149,597,870.7 kilometers or about 92,955,807.3 miles.
The astronomical unit is defined as the mean distance between the Earth and the Sun.
Astronomical units are used to express distances between celestial bodies within the solar system, such as the distances between planets and their orbits. They provide a convenient scale for describing and comparing distances in a way that is more manageable than using kilometers or miles.
{
"conversion": "kilometers-astronomical_unit",
"x_slug": "kilometers",
"y_slug": "astronomical_unit",
"x": "km",
"y": "AU",
"x_desc": "Kilometers",
"y_desc": "Astronomical Units",
"category": "Length",
"symbol": "m",
"formula": "x / 149597870.7060077",
"precision": 16,
"examples": "<div class=\"example\">\n <div class=\"example_head\"><span class=\"example_n\">1</span>\n <h3 class=\"question\">Consider that a high-end electric car has a maximum range of 400 kilometers on a single charge.<br>Convert this range from kilometers to Astronomical Units.</h3></div>\n <h4 class=\"answer\">Answer:</h4>\n <p><strong>Given:</strong></p>\n <p>The length in kilometers is:</p>\n <p class=\"step\"><span>Length<sub>(Kilometers)</sub></span> = 400</p>\n <p><strong>Formula:</strong></p>\n <p>The formula to convert length from kilometers to astronomical units is:</p>\n <p class=\"formula step\"><span>Length<sub>(Astronomical Units)</sub></span> = <span>Length<sub>(Kilometers)</sub></span> / 149597870.7060077</p>\n <p><strong>Substitution:</strong></p>\n <p>Substitute given weight <strong>Length<sub>(Kilometers)</sub> = 400</strong> in the above formula.</p>\n <p class=\"step\"><span>Length<sub>(Astronomical Units)</sub></span> = <span>400</span> / 149597870.7060077</p>\n <p class=\"step\"><span>Length<sub>(Astronomical Units)</sub></span> = 0.0000026738348488</p>\n <p><strong>Final Answer:</strong></p>\n <p>Therefore, <strong>400 km</strong> is equal to <strong>0.0000026738348488 AU</strong>.</p>\n <p>The length is <strong>0.0000026738348488 AU</strong>, in astronomical units.</p>\n </div>\n <div class=\"example\">\n <div class=\"example_head\"><span class=\"example_n\">2</span>\n <h3 class=\"question\">Consider that a private helicopter has a flight range of 150 kilometers.<br>Convert this range from kilometers to Astronomical Units.</h3></div>\n <h4 class=\"answer\">Answer:</h4>\n <p><strong>Given:</strong></p>\n <p>The length in kilometers is:</p>\n <p class=\"step\"><span>Length<sub>(Kilometers)</sub></span> = 150</p>\n <p><strong>Formula:</strong></p>\n <p>The formula to convert length from kilometers to astronomical units is:</p>\n <p class=\"formula step\"><span>Length<sub>(Astronomical Units)</sub></span> = <span>Length<sub>(Kilometers)</sub></span> / 149597870.7060077</p>\n <p><strong>Substitution:</strong></p>\n <p>Substitute given weight <strong>Length<sub>(Kilometers)</sub> = 150</strong> in the above formula.</p>\n <p class=\"step\"><span>Length<sub>(Astronomical Units)</sub></span> = <span>150</span> / 149597870.7060077</p>\n <p class=\"step\"><span>Length<sub>(Astronomical Units)</sub></span> = 0.0000010026880683</p>\n <p><strong>Final Answer:</strong></p>\n <p>Therefore, <strong>150 km</strong> is equal to <strong>0.0000010026880683 AU</strong>.</p>\n <p>The length is <strong>0.0000010026880683 AU</strong>, in astronomical units.</p>\n </div>\n ",
"img": "<img class=\"conversion\" src=\"/images/unit/length/kilometers-astronomical_unit.webp\" height=\"360\" width=\"640\" alt=\"Kilometers to Astronomical Units Converter | km to AU\" />",
"table1n": "<h2><span class=\"x\">Kilometers</span> to <span class=\"y\">Astronomical Units</span> Conversion Table</h2><p>The following table gives some of the most used conversions from Kilometers to Astronomical Units.</p><table><thead><tr><th scope=\"column\" role=\"columnheader\">Kilometers (<span class=\"unit\">km</span>)</th><th scope=\"column\" role=\"columnheader\">Astronomical Units (<span class=\"unit\">AU</span>)</th><tr></thead><tbody><tr><td>0 <span class=\"unit\">km</span></td><td>0 <span class=\"unit\">AU</span></td></tr><tr><td>1 <span class=\"unit\">km</span></td><td>6<span>.68e-9</span> <span class=\"unit\">AU</span></td></tr><tr><td>2 <span class=\"unit\">km</span></td><td>1<span>.337e-8</span> <span class=\"unit\">AU</span></td></tr><tr><td>3 <span class=\"unit\">km</span></td><td>2<span>.005e-8</span> <span class=\"unit\">AU</span></td></tr><tr><td>4 <span class=\"unit\">km</span></td><td>2<span>.674e-8</span> <span class=\"unit\">AU</span></td></tr><tr><td>5 <span class=\"unit\">km</span></td><td>3<span>.342e-8</span> <span class=\"unit\">AU</span></td></tr><tr><td>6 <span class=\"unit\">km</span></td><td>4<span>.011e-8</span> <span class=\"unit\">AU</span></td></tr><tr><td>7 <span class=\"unit\">km</span></td><td>4<span>.679e-8</span> <span class=\"unit\">AU</span></td></tr><tr><td>8 <span class=\"unit\">km</span></td><td>5<span>.348e-8</span> <span class=\"unit\">AU</span></td></tr><tr><td>9 <span class=\"unit\">km</span></td><td>6<span>.016e-8</span> <span class=\"unit\">AU</span></td></tr><tr><td>10 <span class=\"unit\">km</span></td><td>6<span>.685e-8</span> <span class=\"unit\">AU</span></td></tr><tr><td>20 <span class=\"unit\">km</span></td><td>1<span>.3369e-7</span> <span class=\"unit\">AU</span></td></tr><tr><td>50 <span class=\"unit\">km</span></td><td>3<span>.3423e-7</span> <span class=\"unit\">AU</span></td></tr><tr><td>100 <span class=\"unit\">km</span></td><td>6<span>.6846e-7</span> <span class=\"unit\">AU</span></td></tr><tr><td>1000 <span class=\"unit\">km</span></td><td>0<span>.00000668459</span> <span class=\"unit\">AU</span></td></tr><tr><td>10000 <span class=\"unit\">km</span></td><td>0<span>.00006684587</span> <span class=\"unit\">AU</span></td></tr><tr><td>100000 <span class=\"unit\">km</span></td><td>0<span>.00066845871</span> <span class=\"unit\">AU</span></td></tr></table>",
"units": [
[
"meters",
"Meters",
"m"
],
[
"kilometers",
"Kilometers",
"km"
],
[
"decimeters",
"Decimeters",
"dm"
],
[
"centimeters",
"Centimeters",
"cm"
],
[
"millimeters",
"Millimeters",
"mm"
],
[
"micrometers",
"Micrometers",
"µm"
],
[
"nanometers",
"Nanometers",
"nm"
],
[
"miles",
"Miles",
"mi"
],
[
"yards",
"Yards",
"yd"
],
[
"feet",
"Feet",
"ft"
],
[
"inches",
"Inches",
"in"
],
[
"lightyears",
"Lightyears",
"ly"
],
[
"exameters",
"Exameters",
"Em"
],
[
"petameters",
"Petameters",
"Pm"
],
[
"terameters",
"Terameters",
"Tm"
],
[
"gigameters",
"Gigameters",
"Gm"
],
[
"megameters",
"Megameters",
"Mm"
],
[
"hectometers",
"Hectameters",
"hm"
],
[
"dekameters",
"Dekameters",
"dam"
],
[
"microns",
"Microns",
"µ"
],
[
"picometers",
"Picometers",
"pm"
],
[
"femtometers",
"Femtometers",
"fm"
],
[
"attometers",
"Attometers",
"am"
],
[
"megaparsecs",
"Megaparsecs",
"Mpc"
],
[
"kiloparsecs",
"Kiloparsecs",
"kpc"
],
[
"parsecs",
"Parsecs",
"pc"
],
[
"astronomical_unit",
"Astronomical Units",
"AU"
],
[
"leagues",
"Leagues",
"lea"
],
[
"nautical_leagues_uk",
"Nautical Leagues (UK)",
"nautical league"
],
[
"nautical_leagues",
"Nautical Leagues (International)",
"nautical league"
],
[
"leagues_statute",
"Leagues (statute)",
"st.league"
],
[
"nautical_miles_uk",
"Nautical Miles (UK)",
"NM (UK)"
],
[
"nautical_miles",
"Nautical miles (International)",
"nmi"
],
[
"miles_statute",
"Miles (statute)",
"mi (US)"
],
[
"miles_us_survey",
"Miles (US survey)",
"mi"
],
[
"miles_roman",
"Miles (Roman)",
"mi (roman)"
],
[
"kiloyards",
"Kiloyards",
"kyd"
],
[
"furlongs",
"Furlongs",
"fur"
],
[
"furlongs_us_survey",
"Furlongs (US survey)",
"fur"
],
[
"chains",
"Chains",
"ch"
],
[
"chain_us_survey",
"Chains (US survey)",
"ch"
],
[
"ropes",
"Ropes",
"rope"
],
[
"rods",
"Rod",
"rd"
],
[
"rods_us_survey",
"Rods (US survey)",
"rd"
],
[
"perch",
"Perch",
"perch"
],
[
"poles",
"Poles",
"pole"
],
[
"fathoms",
"Fathoms",
"fath"
],
[
"fathoms_us_survey",
"Fathoms (US survey)",
"fath"
],
[
"ell",
"ell",
"ell"
],
[
"foot_us_survey",
"Feet (US survey)",
"ft"
],
[
"links",
"Links",
"li"
],
[
"links_us_survey",
"link (US survey)",
"li"
],
[
"cubits_uk",
"Cubits (UK)",
"cubit"
],
[
"hands",
"Hands",
"hand"
],
[
"span_cloth",
"Span (cloth)",
"span"
],
[
"fingers_cloth",
"Fingers (cloth)",
"finger"
],
[
"nails",
"Nails (cloth)",
"nail"
],
[
"inches_us_survey",
"Inches (US survey)",
"in"
],
[
"barleycorns",
"Barleycorns",
"barleycorn"
],
[
"mil",
"mil",
"mil"
],
[
"microinches",
"Microinches",
"µin"
],
[
"angstroms",
"Angstroms",
"A"
],
[
"fermi",
"Fermi",
"f"
],
[
"arpents",
"Arpent",
"arpent"
],
[
"picas",
"Pica",
"pica"
],
[
"points",
"Point",
"point"
],
[
"twips",
"Twip",
"twip"
],
[
"aln",
"aln",
"aln"
],
[
"famns",
"Famns",
"famn"
],
[
"calibers",
"Caliber",
"cl"
],
[
"centiinches",
"Centiinch",
"cin"
],
[
"kens",
"Kens",
"ken"
],
[
"russian_archin",
"Russian archin",
"russian archin"
],
[
"roman_actus",
"Roman actus",
"Roman actus"
],
[
"vara_de_tarea",
"Vara De Tarea",
"vara de tarea"
],
[
"vara_conuquera",
"Vara Conuquera",
"vara conuquera"
],
[
"vara_castellana",
"vara Castellana",
"vara castellana"
],
[
"cubits_greek",
"Cubit (Greek)",
"cubit (Greek)"
],
[
"long_reeds",
"Long Reed",
"long reed"
],
[
"reeds",
"Reed",
"reed"
],
[
"long_cubits",
"Long cubits",
"long cubit"
],
[
"handbreadths",
"Handbreadth",
"handbreadth"
],
[
"fingerbreadth",
"Fingerbreadth",
"fingerbreadth"
],
[
"planck_length",
"Planck length",
"Planck length"
],
[
"electron_radius_classical",
"Electron radius (classical) ",
"electron radius"
],
[
"bohr_radius",
"Bohr radius",
"b"
],
[
"earths_equatorial_radius",
"Earth's equatorial radius",
"earth's equatorial radius"
],
[
"earths_polar_radius",
"Earth's polar radius",
"Earth's polar radius"
],
[
"earths_distance_from_sun",
"Earth's distance from sun",
"earth's distance from sun"
],
[
"suns_radius",
"Sun's radius",
"sun's radius"
]
],
"x_long_desc": "A kilometer (km) is a unit of length in the International System of Units (SI), equal to 0.6214 miles. One kilometer is one thousand meters. </p><p>The prefix \"kilo-\" means one thousand. A kilometer is defined by 1000 times the distance light travels in 1/299,792,458 seconds. This definition may change, but a kilometer will always be one thousand meters. </p><p>Kilometers are used to measure distances on land in most countries. However, the United States and the United Kingdom still often use miles. The UK has adopted the metric system, but miles are still used on road signs.",
"y_long_desc": "An astronomical unit (AU) is a unit of length used in astronomy to measure distances within our solar system. One astronomical unit is equivalent to approximately 149,597,870.7 kilometers or about 92,955,807.3 miles. </p><p>The astronomical unit is defined as the mean distance between the Earth and the Sun.</p><p>Astronomical units are used to express distances between celestial bodies within the solar system, such as the distances between planets and their orbits. They provide a convenient scale for describing and comparing distances in a way that is more manageable than using kilometers or miles."
}
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