Convert Online Unit Length Kilometers to Femtometers
Convert Kilometers to Femtometers
Kilometers
km ResetFemtometers
fm Copy
How to use this Kilometers to Femtometers Converter 🤔 Follow these steps to convert given Kilometers value from Kilometers units to Femtometers units.
Enter the input Kilometers value in the text field. The given Kilometers is converted to Femtometers in realtime ⌚ using the formula, and displayed under the Femtometers label. You may copy the resulting Femtometers value using the Copy button. Calculation Calculation will be done after you enter a valid input.
Kilometers to Femtometers Conversion TableThe following table gives some of the most used conversions from Kilometers to Femtometers.
Kilometers (km ) Femtometers (fm ) 0 km 0 fm 1 km 1000000000000000000 fm 2 km 2000000000000000000 fm 3 km 3000000000000000000 fm 4 km 4000000000000000000 fm 5 km 5000000000000000000 fm 6 km 6000000000000000000 fm 7 km 7000000000000000000 fm 8 km 8000000000000000000 fm 9 km 9000000000000000000 fm 10 km 10000000000000000000 fm 20 km 20000000000000000000 fm 50 km 50000000000000000000 fm 100 km 100000000000000000000 fm 1000 km 1e+21 fm 10000 km 1e+22 fm 100000 km 1e+23 fm
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.
Femtometers A femtometer (fm) is a unit of length in the International System of Units (SI). One femtometer is equivalent to 0.000000000001 meters or 1 × 10^(-15) meters.
The femtometer is defined as one quadrillionth of a meter, making it a very small unit of measurement used for measuring atomic and subatomic distances.
Femtometers are commonly used in nuclear physics and particle physics to describe the sizes of atomic nuclei and the ranges of fundamental forces at the subatomic level.
{
"conversion": "kilometers-femtometers",
"x_slug": "kilometers",
"y_slug": "femtometers",
"x": "km",
"y": "fm",
"x_desc": "Kilometers",
"y_desc": "Femtometers",
"category": "Length",
"symbol": "m",
"formula": "x * 1e+18",
"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 Femtometers.</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 femtometers is:</p>\n <p class=\"formula step\"><span>Length<sub>(Femtometers)</sub></span> = <span>Length<sub>(Kilometers)</sub></span> × 1e+18</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>(Femtometers)</sub></span> = <span>400</span> × 1e+18</p>\n <p class=\"step\"><span>Length<sub>(Femtometers)</sub></span> = 400000000000000000000</p>\n <p><strong>Final Answer:</strong></p>\n <p>Therefore, <strong>400 km</strong> is equal to <strong>400000000000000000000 fm</strong>.</p>\n <p>The length is <strong>400000000000000000000 fm</strong>, in femtometers.</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 Femtometers.</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 femtometers is:</p>\n <p class=\"formula step\"><span>Length<sub>(Femtometers)</sub></span> = <span>Length<sub>(Kilometers)</sub></span> × 1e+18</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>(Femtometers)</sub></span> = <span>150</span> × 1e+18</p>\n <p class=\"step\"><span>Length<sub>(Femtometers)</sub></span> = 150000000000000000000</p>\n <p><strong>Final Answer:</strong></p>\n <p>Therefore, <strong>150 km</strong> is equal to <strong>150000000000000000000 fm</strong>.</p>\n <p>The length is <strong>150000000000000000000 fm</strong>, in femtometers.</p>\n </div>\n ",
"img": "<img class=\"conversion\" src=\"/images/unit/length/kilometers-femtometers.webp\" height=\"360\" width=\"640\" alt=\"Kilometers to Femtometers Converter | km to fm\" />",
"table1n": "<h2><span class=\"x\">Kilometers</span> to <span class=\"y\">Femtometers</span> Conversion Table</h2><p>The following table gives some of the most used conversions from Kilometers to Femtometers.</p><table><thead><tr><th scope=\"column\" role=\"columnheader\">Kilometers (<span class=\"unit\">km</span>)</th><th scope=\"column\" role=\"columnheader\">Femtometers (<span class=\"unit\">fm</span>)</th><tr></thead><tbody><tr><td>0 <span class=\"unit\">km</span></td><td>0 <span class=\"unit\">fm</span></td></tr><tr><td>1 <span class=\"unit\">km</span></td><td>1000000000000000000 <span class=\"unit\">fm</span></td></tr><tr><td>2 <span class=\"unit\">km</span></td><td>2000000000000000000 <span class=\"unit\">fm</span></td></tr><tr><td>3 <span class=\"unit\">km</span></td><td>3000000000000000000 <span class=\"unit\">fm</span></td></tr><tr><td>4 <span class=\"unit\">km</span></td><td>4000000000000000000 <span class=\"unit\">fm</span></td></tr><tr><td>5 <span class=\"unit\">km</span></td><td>5000000000000000000 <span class=\"unit\">fm</span></td></tr><tr><td>6 <span class=\"unit\">km</span></td><td>6000000000000000000 <span class=\"unit\">fm</span></td></tr><tr><td>7 <span class=\"unit\">km</span></td><td>7000000000000000000 <span class=\"unit\">fm</span></td></tr><tr><td>8 <span class=\"unit\">km</span></td><td>8000000000000000000 <span class=\"unit\">fm</span></td></tr><tr><td>9 <span class=\"unit\">km</span></td><td>9000000000000000000 <span class=\"unit\">fm</span></td></tr><tr><td>10 <span class=\"unit\">km</span></td><td>10000000000000000000 <span class=\"unit\">fm</span></td></tr><tr><td>20 <span class=\"unit\">km</span></td><td>20000000000000000000 <span class=\"unit\">fm</span></td></tr><tr><td>50 <span class=\"unit\">km</span></td><td>50000000000000000000 <span class=\"unit\">fm</span></td></tr><tr><td>100 <span class=\"unit\">km</span></td><td>100000000000000000000 <span class=\"unit\">fm</span></td></tr><tr><td>1000 <span class=\"unit\">km</span></td><td>1e+21 <span class=\"unit\">fm</span></td></tr><tr><td>10000 <span class=\"unit\">km</span></td><td>1e+22 <span class=\"unit\">fm</span></td></tr><tr><td>100000 <span class=\"unit\">km</span></td><td>1e+23 <span class=\"unit\">fm</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": "A femtometer (fm) is a unit of length in the International System of Units (SI). One femtometer is equivalent to 0.000000000001 meters or 1 × 10^(-15) meters. </p><p>The femtometer is defined as one quadrillionth of a meter, making it a very small unit of measurement used for measuring atomic and subatomic distances.</p><p>Femtometers are commonly used in nuclear physics and particle physics to describe the sizes of atomic nuclei and the ranges of fundamental forces at the subatomic level."
}