Rods to Astronomical Units Converter

Conversion Updated 15 Jun 2026

This Rods to Astronomical Units Converter lets you convert Rods (rd) into Astronomical units (AU) in one step. Enter a value in rods and you'll instantly see the equivalent in astronomical units, worked out with the formula AU = rd x 3.3618125555312465e-11. It's handy whenever you need a quick, precise rods-to-astronomical units conversion without doing the arithmetic by hand.

  • Conversion constants are fixed and do not vary by region.

Formula

AU = rd x 3.3618125555312465e-11
  • To convert rods to astronomical units, multiply your value by the fixed factor 0.000000000034 (so 1 rd = 0.000000000034 AU).
  • The factor comes from the internationally agreed definitions of each unit, so it never changes.
  • Displayed results are rounded for readability, but the full-precision value is used in the calculation.

Example

Inputs
  • Rods (rd): 50

Start with 50 rd. Multiply by 0.000000000034 to get 0.000000001681 AU.

Frequently asked questions

How do I convert rods to astronomical units?
Multiply the number of rods by 0.000000000034. For example, 50 rd equals 0.000000001681 AU.
Are these conversion factors accurate?
Yes. The calculator uses internationally accepted definitions for each unit, so the conversion factor is exact.
Why can tiny differences appear after conversion?
Very small differences are only a display effect from rounding the output. The underlying calculation keeps full precision.