Online Length Units Converter
How to Convert from A.u. of length [a.u., b] to Astronomical unit [AU, UA]
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How to Convert from A.u. of length [a.u., b] to Astronomical unit [AU, UA]

Learn how to convert lengths from the atomic unit of length, based on the Bohr radius, to the astronomical unit used for measuring distances in the Solar System with this easy-to-use online converter.

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A.u. of length [a.u., b] to Astronomical unit [AU, UA] Conversion Table

A.u. of length [a.u., b] Astronomical unit [AU, UA]

Custom Unit Conversion Table Generator – Instant Printable Conversion Tables

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A.u. of length [a.u., b] to Astronomical unit [AU, UA] Conversion Table
A.u. of length [a.u., b] Astronomical unit [AU, UA]

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 converter allows you to change values from the atomic unit of length, which is based on the Bohr radius and important in atomic physics, into astronomical units, a scale used for distances within the Solar System. It bridges the gap between atomic-scale measurements and astronomical distances.

How to Use This Tool?

  • Enter the value in atomic units of length you want to convert.
  • Select 'a.u. of length [a.u., b]' as the from-unit.
  • Choose 'astronomical unit [AU, UA]' as the to-unit.
  • Click the convert button to see the result in astronomical units.

Key Features

  • Converts lengths from the atomic unit of length to astronomical units accurately.
  • User-friendly and browser-based conversion tool.
  • Supports scientific and space science contexts for cross-disciplinary use.
  • Provides examples to illustrate conversion calculations.
  • Handles extremely small conversion factors linking atomic and astronomical scales.

Examples

  • Convert 2 a.u. of length: 2 × 3.5373314242757e-22 = 7.0746628485514e-22 AU
  • Convert 5 a.u. of length: 5 × 3.5373314242757e-22 = 1.76866571213785e-21 AU

Common Use Cases

  • Expressing electron orbital sizes and radial distributions in atomic and molecular physics.
  • Reporting atomic geometries and interatomic distances for quantum chemistry calculations.
  • Describing planetary orbital radii and semi-major axes within the Solar System.
  • Planning spacecraft trajectories and missions using astronomical distances.
  • Comparing orbital distances of exoplanets in astrophysics.

Tips & Best Practices

  • Use high-precision numerical tools when working with very small converted values.
  • Check units carefully to ensure correct conversion direction.
  • Understand that this conversion mainly supports theoretical and scientific modeling applications.
  • Leverage provided examples to verify your conversions.

Limitations

  • Conversion results are very small values due to scale differences, requiring precision.
  • Primarily intended for scientific contexts rather than everyday measurements.
  • Not suitable for practical length measurements without proper numerical handling.

Frequently Asked Questions

What does the atomic unit of length represent?
It is the Bohr radius, representing the characteristic length scale in atomic physics related to the electron-proton separation in hydrogen's ground state.

Why convert atomic units of length to astronomical units?
The conversion helps relate atomic-scale distances to astronomical distances, facilitating cross-disciplinary understanding between atomic physics and space sciences.

Is this conversion useful for everyday measurements?
No, due to the extreme difference in scales, this conversion is primarily for theoretical and scientific modeling rather than practical measurements.

Key Terminology

Atomic unit of length (a.u., b)
A length unit defined by the Bohr radius, representing typical atomic-scale distances in quantum mechanics.
Astronomical unit (AU, UA)
A length unit equal to exactly 149,597,870,700 metres, commonly used to express distances within the Solar System.
Bohr radius
The approximate mean electron-proton separation in the hydrogen atom's ground state in nonrelativistic quantum mechanics.

Quick Knowledge Check

What is the atomic unit of length based on?
What does the astronomical unit (AU) represent?
Why might converted values from atomic units to astronomical units be very small?

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