Convert length and distance units — meters, feet, inches, kilometers, miles, light years and more.
| Unit | Name | Value |
|---|---|---|
| 0.001 au | 1.63605e+08 yd | |
| 0.01 au | 1.63605e+09 yd | |
| 0.1 au | 1.63605e+10 yd | |
| 1 au | 1.63605e+11 yd | |
| 5 au | 8.18023e+11 yd | |
| 10 au | 1.63605e+12 yd | |
| 50 au | 8.18023e+12 yd | |
| 100 au | 1.63605e+13 yd | |
| 1000 au | 1.63605e+14 yd |
Multiply the number of Astronomical Units by 163605000000 to get Yards. Formula: yd = au × 163605000000. Example: 10 au × 163605000000 = 1.636×1012 yd. To reverse, divide Yards by 163605000000 to get Astronomical Units.
| Astronomical Unit (au) | Yard (yd) |
|---|---|
| 0.001 au | 163605000 yd |
| 0.01 au | 1636050000 yd |
| 0.1 au | 16360500000 yd |
| 0.5 au | 81802300000 yd |
| 1 au | 163605000000 yd |
| 2 au | 327209000000 yd |
| 5 au | 818023000000 yd |
| 10 au | 1.636×1012 yd |
| 20 au | 3.2721×1012 yd |
| 50 au | 8.1802×1012 yd |
| 100 au | 1.636×1013 yd |
| 250 au | 4.0901×1013 yd |
| 500 au | 8.1802×1013 yd |
| 1000 au | 1.636×1014 yd |
| 10000 au | 1.636×1015 yd |
To convert Astronomical Unit to Yard, multiply by 163605000000. Example: 10 au = 1.636×1012 yd
To convert Yard back to Astronomical Unit, divide by 163605000000 (multiply by 6.1123×10-12). Use the swap button above.
Start with 100 Astronomical Units = 1.636×1013 yd as your reference point. Scale up or down from there.
Science communicators in the US use yards to make astronomical distances relatable: "The Earth-Sun distance is 163 trillion yards — that's 93 billion American football fields end to end." A favourite outreach comparison.
American manufacturers specifying materials for aerospace applications (thermal blankets, parachutes) use yards for material quantities while component operational distances in space use AU — both in the same supply chain documentation.
The yard is one of England's oldest length units. Comparing it with the AU — formalised in the 20th century — illustrates measurement history from medieval cloth trading to space age astronomy.
US educators building scale models of the solar system occasionally use yards as the base unit — "at 1 yard = 1 million miles, the Earth-Sun distance is 93 yards: the length of a football field."
Some US aerospace contractors who use yards in terrestrial operations need to convert AU distances to yards when translating mission documents into US customary system engineering drawings and specifications.
Astronomy outreach programs use AU-to-yard comparisons to engage sports-focused audiences: making cosmic distances tangible through units fans instinctively understand from watching American football.
The Astronomical Unit is a unit of Length measurement (symbol: au). 1 au = 163605000000 yd. Used in scientific and practical Length measurement applications.
The Yard is a unit of Length measurement (symbol: yd). It is part of an internationally recognised measurement system used alongside the Astronomical Unit.
The astronomical unit has ancient roots — Aristarchus of Samos attempted to measure the Earth-Sun distance around 270 BC, estimating it at 18–20 lunar distances (the true value is about 390). For centuries the AU was estimated using Venus transit observations and trigonometry. Edmond Halley organised the first coordinated international transit-of-Venus expedition in 1716. The modern value was determined by radar ranging to Venus in 1961. The IAU formally defined the AU as exactly 149,597,870,700 metres in 2012 — a fixed constant of physics, not a measured distance.
The yard has a disputed but fascinating origin. One theory holds it was defined as the distance from King Henry I's nose to the tip of his outstretched thumb. It was formally codified at 3 feet in 1558 under Queen Elizabeth I. The Imperial Standard Yard — a bronze bar with gold reference plugs — was created in 1845 to replace the original, destroyed in the 1834 Parliament fire. The yard was fixed at exactly 0.9144 metres under the International Yard and Pound Agreement of 1959.
Common use: Astronomical Unit to Yard conversion is needed when working with international standards, scientific publications, or reference materials that use different unit systems for Length measurement.