Astronomical Unit to Light Second Converter
Enter a value in astronomical unit and get the equivalent in light second instantly. The calculator uses the standard unit relationship and runs directly in your browser.
Astronomical Unit → Light Second
Formula
This conversion page is dedicated to the astronomical unit-to-light second direction so the unit relationship, reverse path and examples are easy to find. For scale-factor units, XpressCalculator converts through the domain base unit using internationally recognized unit definitions. Temperature scales use their standard offset-and-scale equations rather than a simple multiplier.
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Starting with 1 astronomical unit (AU), the converter returns 499.0047838362 light second (light-s). For any other value, enter the number above and the browser recalculates the result immediately.
Quick conversion table
| Astronomical Unit | Light Second |
|---|---|
| 1 AU | 499.0047838362 light-s |
| 5 AU | 2495.0239191808 light-s |
| 10 AU | 4990.0478383616 light-s |
| 25 AU | 12475.1195959039 light-s |
| 50 AU | 24950.2391918078 light-s |
| 100 AU | 49900.4783836156 light-s |
Helpful guide
Unit conversions are most reliable when the source value and unit are identified correctly. Do not confuse similarly named US customary and imperial units, and keep significant figures appropriate to the precision of the original measurement. For engineering, scientific, medical or safety-critical work, confirm the measurement standard required by your application.
Use sensible precision and verify critical decisions with an authoritative source or qualified professional.
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How do I convert astronomical unit to light second?
Multiply the astronomical unit value by 499.0047838362 to get light second. This page performs the conversion instantly and shows the relationship clearly.
Is this astronomical unit to light second conversion exact?
The mathematical unit factor is applied directly. Displayed results may be rounded for readability, so retain more digits when high precision matters.
Can I reverse the conversion?
Yes. Use the linked light second to astronomical unit converter to reverse the direction without re-entering the formula manually.