Online Length Units Converter
How to Convert from A.u. of length [a.u., b] to Light year [ly]
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How to Convert from A.u. of length [a.u., b] to Light year [ly]

Easily convert lengths measured in atomic units (a.u., b) to light years (ly) using this online length converter tool. Understand the relation between atomic scale distances and cosmic scales with accurate conversions.

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A.u. of length [a.u., b] to Light year [ly] Conversion Table

A.u. of length [a.u., b] Light year [ly]

Custom Unit Conversion Table Generator – Instant Printable Conversion Tables

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A.u. of length [a.u., b] to Light year [ly] Conversion Table
A.u. of length [a.u., b] Light year [ly]

Explore More Length Units Converter

  1. How to convert from meter [m] to a.u. of length [a.u., b]?
  2. How to convert from a.u. of length [a.u., b] to meter [m]?
  3. How to convert from kilometer [km] to a.u. of length [a.u., b]?
  4. How to convert from a.u. of length [a.u., b] to kilometer [km]?
  5. How to convert from decimeter [dm] to a.u. of length [a.u., b]?
  6. How to convert from a.u. of length [a.u., b] to decimeter [dm]?
  7. How to convert from centimeter [cm] to a.u. of length [a.u., b]?
  8. How to convert from a.u. of length [a.u., b] to centimeter [cm]?
  9. How to convert from millimeter [mm] to a.u. of length [a.u., b]?
  10. How to convert from a.u. of length [a.u., b] to millimeter [mm]?
  11. How to convert from micrometer [µm] to a.u. of length [a.u., b]?
  12. How to convert from a.u. of length [a.u., b] to micrometer [µm]?
  13. How to convert from nanometer [nm] to a.u. of length [a.u., b]?
  14. How to convert from a.u. of length [a.u., b] to nanometer [nm]?
  15. How to convert from mile [mi, mi(Int)] to a.u. of length [a.u., b]?
  16. How to convert from a.u. of length [a.u., b] to mile [mi, mi(Int)]?
  17. How to convert from yard [yd] to a.u. of length [a.u., b]?
  18. How to convert from a.u. of length [a.u., b] to yard [yd]?
  19. How to convert from foot [ft] to a.u. of length [a.u., b]?
  20. How to convert from a.u. of length [a.u., b] to foot [ft]?
  21. How to convert from inch [in] to a.u. of length [a.u., b]?
  22. How to convert from a.u. of length [a.u., b] to inch [in]?
  23. How to convert from light year [ly] to a.u. of length [a.u., b]?
  24. How to convert from a.u. of length [a.u., b] to light year [ly]?
  25. How to convert from exameter [Em] to a.u. of length [a.u., b]?
  26. How to convert from a.u. of length [a.u., b] to exameter [Em]?
  27. How to convert from petameter [Pm] to a.u. of length [a.u., b]?
  28. How to convert from a.u. of length [a.u., b] to petameter [Pm]?
  29. How to convert from terameter [Tm] to a.u. of length [a.u., b]?
  30. How to convert from a.u. of length [a.u., b] to terameter [Tm]?
  31. How to convert from gigameter [Gm] to a.u. of length [a.u., b]?
  32. How to convert from a.u. of length [a.u., b] to gigameter [Gm]?
  33. How to convert from megameter [Mm] to a.u. of length [a.u., b]?
  34. How to convert from a.u. of length [a.u., b] to megameter [Mm]?
  35. How to convert from hectometer [hm] to a.u. of length [a.u., b]?
  36. How to convert from a.u. of length [a.u., b] to hectometer [hm]?
  37. How to convert from dekameter [dam] to a.u. of length [a.u., b]?
  38. How to convert from a.u. of length [a.u., b] to dekameter [dam]?
  39. How to convert from micron [µ] to a.u. of length [a.u., b]?
  40. How to convert from a.u. of length [a.u., b] to micron [µ]?
  41. How to convert from picometer [pm] to a.u. of length [a.u., b]?
  42. How to convert from a.u. of length [a.u., b] to picometer [pm]?
  43. How to convert from femtometer [fm] to a.u. of length [a.u., b]?
  44. How to convert from a.u. of length [a.u., b] to femtometer [fm]?
  45. How to convert from attometer [am] to a.u. of length [a.u., b]?
  46. How to convert from a.u. of length [a.u., b] to attometer [am]?
  47. How to convert from megaparsec [Mpc] to a.u. of length [a.u., b]?
  48. How to convert from a.u. of length [a.u., b] to megaparsec [Mpc]?
  49. How to convert from kiloparsec [kpc] to a.u. of length [a.u., b]?
  50. How to convert from a.u. of length [a.u., b] to kiloparsec [kpc]?
  51. How to convert from parsec [pc] to a.u. of length [a.u., b]?
  52. How to convert from a.u. of length [a.u., b] to parsec [pc]?
  53. How to convert from astronomical unit [AU, UA] to a.u. of length [a.u., b]?
  54. How to convert from a.u. of length [a.u., b] to astronomical unit [AU, UA]?
  55. How to convert from league [lea] to a.u. of length [a.u., b]?
  56. How to convert from a.u. of length [a.u., b] to league [lea]?
  57. How to convert from nautical league (UK) to a.u. of length [a.u., b]?
  58. How to convert from a.u. of length [a.u., b] to nautical league (UK)?
  59. How to convert from nautical league (int.) to a.u. of length [a.u., b]?
  60. How to convert from a.u. of length [a.u., b] to nautical league (int.)?
  61. How to convert from league (statute) [st.league] to a.u. of length [a.u., b]?
  62. How to convert from a.u. of length [a.u., b] to league (statute) [st.league]?
  63. How to convert from nautical mile (UK) [NM (UK)] to a.u. of length [a.u., b]?
  64. How to convert from a.u. of length [a.u., b] to nautical mile (UK) [NM (UK)]?
  65. How to convert from nautical mile (international) to a.u. of length [a.u., b]?
  66. How to convert from a.u. of length [a.u., b] to nautical mile (international)?
  67. How to convert from mile (statute) [mi, mi (US)] to a.u. of length [a.u., b]?
  68. How to convert from a.u. of length [a.u., b] to mile (statute) [mi, mi (US)]?
  69. How to convert from mile (US survey) [mi] to a.u. of length [a.u., b]?
  70. How to convert from a.u. of length [a.u., b] to mile (US survey) [mi]?
  71. How to convert from mile (Roman) to a.u. of length [a.u., b]?
  72. How to convert from a.u. of length [a.u., b] to mile (Roman)?
  73. How to convert from kiloyard [kyd] to a.u. of length [a.u., b]?
  74. How to convert from a.u. of length [a.u., b] to kiloyard [kyd]?
  75. How to convert from furlong [fur] to a.u. of length [a.u., b]?
  76. How to convert from a.u. of length [a.u., b] to furlong [fur]?
  77. How to convert from furlong (US survey) [fur] to a.u. of length [a.u., b]?
  78. How to convert from a.u. of length [a.u., b] to furlong (US survey) [fur]?
  79. How to convert from chain [ch] to a.u. of length [a.u., b]?
  80. How to convert from a.u. of length [a.u., b] to chain [ch]?
  81. How to convert from chain (US survey) [ch] to a.u. of length [a.u., b]?
  82. How to convert from a.u. of length [a.u., b] to chain (US survey) [ch]?
  83. How to convert from rope to a.u. of length [a.u., b]?
  84. How to convert from a.u. of length [a.u., b] to rope?
  85. How to convert from rod [rd] to a.u. of length [a.u., b]?
  86. How to convert from a.u. of length [a.u., b] to rod [rd]?
  87. How to convert from rod (US survey) [rd] to a.u. of length [a.u., b]?
  88. How to convert from a.u. of length [a.u., b] to rod (US survey) [rd]?
  89. How to convert from perch to a.u. of length [a.u., b]?
  90. How to convert from a.u. of length [a.u., b] to perch?
  91. How to convert from pole to a.u. of length [a.u., b]?
  92. How to convert from a.u. of length [a.u., b] to pole?
  93. How to convert from fathom [fath] to a.u. of length [a.u., b]?
  94. How to convert from a.u. of length [a.u., b] to fathom [fath]?
  95. How to convert from fathom (US survey) [fath] to a.u. of length [a.u., b]?
  96. How to convert from a.u. of length [a.u., b] to fathom (US survey) [fath]?
  97. How to convert from ell to a.u. of length [a.u., b]?
  98. How to convert from a.u. of length [a.u., b] to ell?
  99. How to convert from foot (US survey) [ft] to a.u. of length [a.u., b]?
  100. How to convert from a.u. of length [a.u., b] to foot (US survey) [ft]?
  101. How to convert from link [li] to a.u. of length [a.u., b]?
  102. How to convert from a.u. of length [a.u., b] to link [li]?
  103. How to convert from link (US survey) [li] to a.u. of length [a.u., b]?
  104. How to convert from a.u. of length [a.u., b] to link (US survey) [li]?
  105. How to convert from cubit (UK) to a.u. of length [a.u., b]?
  106. How to convert from a.u. of length [a.u., b] to cubit (UK)?
  107. How to convert from hand to a.u. of length [a.u., b]?
  108. How to convert from a.u. of length [a.u., b] to hand?
  109. How to convert from span (cloth) to a.u. of length [a.u., b]?
  110. How to convert from a.u. of length [a.u., b] to span (cloth)?
  111. How to convert from finger (cloth) to a.u. of length [a.u., b]?
  112. How to convert from a.u. of length [a.u., b] to finger (cloth)?
  113. How to convert from nail (cloth) to a.u. of length [a.u., b]?
  114. How to convert from a.u. of length [a.u., b] to nail (cloth)?
  115. How to convert from inch (US survey) [in] to a.u. of length [a.u., b]?
  116. How to convert from a.u. of length [a.u., b] to inch (US survey) [in]?
  117. How to convert from barleycorn to a.u. of length [a.u., b]?
  118. How to convert from a.u. of length [a.u., b] to barleycorn?
  119. How to convert from mil [mil, thou] to a.u. of length [a.u., b]?
  120. How to convert from a.u. of length [a.u., b] to mil [mil, thou]?
  121. How to convert from microinch to a.u. of length [a.u., b]?
  122. How to convert from a.u. of length [a.u., b] to microinch?
  123. How to convert from angstrom [A] to a.u. of length [a.u., b]?
  124. How to convert from a.u. of length [a.u., b] to angstrom [A]?
  125. How to convert from X-unit [X] to a.u. of length [a.u., b]?
  126. How to convert from a.u. of length [a.u., b] to X-unit [X]?
  127. How to convert from fermi [F, f] to a.u. of length [a.u., b]?
  128. How to convert from a.u. of length [a.u., b] to fermi [F, f]?
  129. How to convert from arpent to a.u. of length [a.u., b]?
  130. How to convert from a.u. of length [a.u., b] to arpent?
  131. How to convert from pica to a.u. of length [a.u., b]?
  132. How to convert from a.u. of length [a.u., b] to pica?
  133. How to convert from point to a.u. of length [a.u., b]?
  134. How to convert from a.u. of length [a.u., b] to point?
  135. How to convert from twip to a.u. of length [a.u., b]?
  136. How to convert from a.u. of length [a.u., b] to twip?
  137. How to convert from aln to a.u. of length [a.u., b]?
  138. How to convert from a.u. of length [a.u., b] to aln?
  139. How to convert from famn to a.u. of length [a.u., b]?
  140. How to convert from a.u. of length [a.u., b] to famn?
  141. How to convert from caliber [cl] to a.u. of length [a.u., b]?
  142. How to convert from a.u. of length [a.u., b] to caliber [cl]?
  143. How to convert from centiinch [cin] to a.u. of length [a.u., b]?
  144. How to convert from a.u. of length [a.u., b] to centiinch [cin]?
  145. How to convert from ken to a.u. of length [a.u., b]?
  146. How to convert from a.u. of length [a.u., b] to ken?
  147. How to convert from Russian archin to a.u. of length [a.u., b]?
  148. How to convert from a.u. of length [a.u., b] to Russian archin?
  149. How to convert from Roman actus to a.u. of length [a.u., b]?
  150. How to convert from a.u. of length [a.u., b] to Roman actus?
  151. How to convert from vara de tarea to a.u. of length [a.u., b]?
  152. How to convert from a.u. of length [a.u., b] to vara de tarea?
  153. How to convert from vara conuquera to a.u. of length [a.u., b]?
  154. How to convert from a.u. of length [a.u., b] to vara conuquera?
  155. How to convert from vara castellana to a.u. of length [a.u., b]?
  156. How to convert from a.u. of length [a.u., b] to vara castellana?
  157. How to convert from cubit (Greek) to a.u. of length [a.u., b]?
  158. How to convert from a.u. of length [a.u., b] to cubit (Greek)?
  159. How to convert from long reed to a.u. of length [a.u., b]?
  160. How to convert from a.u. of length [a.u., b] to long reed?
  161. How to convert from reed to a.u. of length [a.u., b]?
  162. How to convert from a.u. of length [a.u., b] to reed?
  163. How to convert from long cubit to a.u. of length [a.u., b]?
  164. How to convert from a.u. of length [a.u., b] to long cubit?
  165. How to convert from handbreadth to a.u. of length [a.u., b]?
  166. How to convert from a.u. of length [a.u., b] to handbreadth?
  167. How to convert from fingerbreadth to a.u. of length [a.u., b]?
  168. How to convert from a.u. of length [a.u., b] to fingerbreadth?
  169. How to convert from Planck length to a.u. of length [a.u., b]?
  170. How to convert from a.u. of length [a.u., b] to Planck length?
  171. How to convert from Electron radius (classical) to a.u. of length [a.u., b]?
  172. How to convert from a.u. of length [a.u., b] to Electron radius (classical)?
  173. How to convert from Bohr radius [b, a.u.] to a.u. of length [a.u., b]?
  174. How to convert from a.u. of length [a.u., b] to Bohr radius [b, a.u.]?
  175. How to convert from Earth's equatorial radius to a.u. of length [a.u., b]?
  176. How to convert from a.u. of length [a.u., b] to Earth's equatorial radius?
  177. How to convert from Earth's polar radius to a.u. of length [a.u., b]?
  178. How to convert from a.u. of length [a.u., b] to Earth's polar radius?
  179. How to convert from Earth's distance from sun to a.u. of length [a.u., b]?
  180. How to convert from a.u. of length [a.u., b] to Earth's distance from sun?
  181. How to convert from Sun's radius to a.u. of length [a.u., b]?
  182. How to convert from a.u. of length [a.u., b] to Sun's radius?

What Is This Tool?

This unit converter transforms length measurements from atomic units of length, based on the Bohr radius, to light years, the distance light travels in one Julian year. It supports understanding scales from atomic physics to astronomy.

How to Use This Tool?

  • Enter the length value measured in atomic units [a.u., b]
  • Select 'A.u. of length [a.u., b]' as the input unit
  • Select 'Light year [ly]' as the output unit
  • Click convert to obtain the equivalent length in light years
  • Review the result and use it for your comparative scale analysis

Key Features

  • Converts atomic unit lengths to light years with a precise conversion factor
  • Browser-based and simple to use with quick input and output
  • Supports scientific and educational contexts linking atomic and cosmic scales
  • Provides example conversions for clear understanding
  • Handles very small-to-large scale length transformations

Examples

  • 10 A.u. of length converts to approximately 5.593407935399e-26 light years
  • 1,000 A.u. of length equals about 5.593407935399e-24 light years

Common Use Cases

  • Relating atomic-scale distances to cosmic distances in astrophysics research
  • Comparing microscopic measurements in quantum physics with astronomical units
  • Educational explanations about scale differences from atomic to cosmic levels
  • Supporting cosmology and space science calculations involving vastly different scales

Tips & Best Practices

  • Ensure the input value is accurately measured in atomic units before conversion
  • Use this conversion when bridging scientific fields such as atomic physics and astronomy
  • Recognize that resulting light year values will be extremely small due to scale differences
  • Consider the context of use since atomic lengths are negligible compared to cosmic distances

Limitations

  • Atomic units and light years differ tremendously in scale making output values extremely close to zero
  • The conversion is mostly theoretical and less practical for everyday length conversions
  • Not suitable for measurements where atomic scale lengths are insignificant compared to cosmic scales

Frequently Asked Questions

What is an atomic unit of length?
It is based on the Bohr radius, representing the typical electron-proton separation in a hydrogen atom, used in atomic and quantum physics.

What does one light year represent?
A light year is the distance that light travels in vacuum during one Julian year, commonly used to express astronomical distances.

Why are the converted values so small?
Because atomic units are extremely tiny compared to the vast distances represented by light years, resulting in very small numerical outputs.

Key Terminology

Atomic unit of length [a.u., b]
A length unit defined by the Bohr radius, representing electron-proton separation at the atomic scale in quantum mechanics.
Light year [ly]
A distance unit equal to how far light travels in vacuum over one Julian year, used mainly in astronomy.
Bohr radius (a0)
The characteristic atomic length scale approx. 5.29177210903×10⁻¹¹ meters used to express atomic distances.

Quick Knowledge Check

What fundamental length is the atomic unit of length based on?
A light year measures:
Why is converting atomic units to light years rarely practical?

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