How many light-year in 1 U?
The answer is 4.6983687072394E-18.
We assume you are converting between light year and U.
You can view more details on each measurement unit: light-year or
U
The SI base unit for length is the metre.
1 metre is equal to 1.0570008340246E-16 light-year, or 22.497187851519 U.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between light years and U.
Type in your own numbers in the form to convert the units!

››Quick conversion chart of light-year to U

1 light-year to U = 2.1283983065424E+17 U

2 light-year to U = 4.2567966130847E+17 U

3 light-year to U = 6.3851949196271E+17 U

4 light-year to U = 8.5135932261694E+17 U

5 light-year to U = 1.0641991532712E+18 U

6 light-year to U = 1.2770389839254E+18 U

7 light-year to U = 1.4898788145797E+18 U

8 light-year to U = 1.7027186452339E+18 U

9 light-year to U = 1.9155584758881E+18 U

10 light-year to U = 2.1283983065424E+18 U

››Want other units?

You can do the reverse unit conversion from
U to light-year, or enter any two units below:

A light year, abbreviated ly, is the distance light travels in one year: roughly 9.46 × 1012 kilometres (9.46 petametres, or about 5.88 × 1012 (nearly six trillion) miles). More specifically, a light year is defined as the distance that a photon would travel, in free space and infinitely far away from any gravitational or magnetic fields, in one Julian year (365.25 days of 86400 seconds each).

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