Light-Years to Kilometers Converter - Free, Instant, In Your Browser
Enter a value in Light-Years to convert it to Kilometers.
How to use LIGHT-YEAR → KM
- 1Paste your text or data into the input box above.
- 2LIGHT-YEAR → KM runs instantly, right in your browser.
- 3Copy the result or use it directly.
Your file is processed in your browser and is never uploaded.
Frequently Asked Questions
What's the formula?
1 light-year = 9.4607 × 10¹² km exactly (distance light travels in one Julian year).
Is my data sent to a server?
No - everything runs entirely in your browser with JavaScript. Nothing is uploaded.