Light Year Conversion

0.0(0)

Converts a distance in light-years to other units of length, such as kilometers, miles, astronomical units, and parsecs.

How To Use

How to use this calculator

Start with your values, or try a preset.

Step 1

Enter Light Years in the units shown.

Step 2

Read Parsecs, Astronomical Units, Miles, and Kilometers in the results panel. Results update as you change the inputs.

Step 3

Choose a preset to load an example, then adjust the values for your situation.

Worked Examples

See the inputs and their calculated results.

Light Years: 1 ly

Parsecs: 0.3065948867 pc; Astronomical Units: 63,241 AU; Miles: 5,878,600,000,000 mi; Kilometers: 9,460,700,000,000 km

Light Years: 10 ly

Parsecs: 3.065948867 pc; Astronomical Units: 632,410 AU; Miles: 58,786,000,000,000 mi; Kilometers: 94,607,000,000,000 km

Light Years: 100 ly

Parsecs: 30.65948867 pc; Astronomical Units: 6,324,100 AU; Miles: 587,860,000,000,000 mi; Kilometers: 946,070,000,000,000 km

Explore the topic

Find calculators for chemistry, biology, lab dilution, concentration, osmolarity, genetics, physics, and experimental planning.

People Also Calculate

Continue with another tool on a related topic.

Calculates the horizontal angle (azimuth) of a celestial body or a point relative to a reference direction (e.g., North).

Analyzes forces and distances in a lever system based on the fulcrum position.

Calculates electrical power using voltage, current, and resistance, based on the formulas P=VI, P=I²R, and P=V²/R.

Calculates the component values (e.g., in L-networks) needed to match impedances for maximum power transfer.