Convert between astronomical distance units including AU, light years, parsecs, kilometers, and miles. Essential for astrophysics, space exploration, and astronomy education.
International System of Units (SI) measurements
Scientific and technical measurements
Traditional British and American measurements
AU, light years, parsecs
m, km
mi, nmi, yd, ft, in
Astronomical distances are so vast that conventional units like kilometers become unwieldy. The Astronomical Unit (AU) represents the average distance from Earth to the Sun, approximately 149.6 million kilometers. This unit is perfect for measuring distances within our solar system.
For interstellar distances, astronomers use the light year (ly), which is the distance light travels in one year - about 9.46 trillion kilometers. The parsec (pc) is another fundamental unit, defined as the distance at which one astronomical unit subtends an angle of one arcsecond. One parsec equals about 3.26 light years.
Our converter handles these vast scales with high precision, making it easy to understand the incredible distances that separate celestial objects. From the Moon's distance of about 0.0026 AU to the Andromeda Galaxy at 2.5 million light years, this tool helps bridge the gap between human experience and cosmic scales.
Convert text to Base64 format and decode Base64 strings
Format, validate, and minify JSON data with syntax highlighting and error detection
Convert between YAML and JSON formats with validation and formatting
Convert between cooking units including cups, tablespoons, grams, ounces, and more. Perfect for recipe conversion, international cooking, and baking.
Convert between logarithmic units including decibels, power ratios, intensity ratios, and more. Essential for audio engineering, signal processing, and acoustics.
Convert between soil moisture units including volumetric, gravimetric, and saturation percentage. Essential for agriculture, geoscience, soil science, and environmental monitoring.
Convert text to Base64 format and decode Base64 strings
Format, validate, and minify JSON data with syntax highlighting and error detection
Convert between YAML and JSON formats with validation and formatting
Convert between cooking units including cups, tablespoons, grams, ounces, and more. Perfect for recipe conversion, international cooking, and baking.
Convert between logarithmic units including decibels, power ratios, intensity ratios, and more. Essential for audio engineering, signal processing, and acoustics.
Generate realistic sample data for testing, development, and prototyping with customizable schemas
Try combining multiple tools for a complete workflow. For example: Notepad → Text Encryption → Save to Cloud or Date Calculator → Calendar → Countdown Timer
We'd love to hear your thoughts!