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About this tool
Convert light-years to yards instantly. Free, bidirectional, and fully in-browser.
1 light-year equals 1.034638e+16 yards — enter any light-year value to convert it to yards instantly. This Light-year to Yard converter is a client-side tool: it applies a single multiplication (yd = ly × 1.034638e+16) in your browser, updates the moment you type, and works in both directions — edit either field, or press swap, to convert yards back to light-years. A reference table lists common light-year values already converted, and nothing you enter is sent to a server.
Open Light-year to Yard Converter on AltFTool — it loads instantly in your browser.
Type the value you want to convert into the Light-year field.
Read the equivalent in yards in the result field, and copy it if needed.
Use the decimal-places slider for more or less precision, or press swap to convert yards to light-years.
The result updates as you type, and the swap button flips the conversion to yard → light-year without reloading.
The conversion uses the precise factor (yd = ly × 1.034638e+16), so the number matches a manual calculation to the decimal places you choose.
A slider sets 0–10 decimal places, and very small or very large results switch to scientific notation instead of rounding to zero.
Everything runs locally in your browser — no upload, no account, no limit on conversions.
One light-year is 1.034638e+16 yards. Multiply the light-year value by 1.034638e+16 to convert. For example, 10 ly = 1.034638e+17 yd.
yd = ly × 1.034638e+16. This tool applies it automatically and shows a worked example: 10 ly = 1.034638e+17 yd.
Yes. Press the swap button, or type into the yard field, and the tool converts yards to light-years using the inverse of the same relationship.
It uses the standard distance and length definition (yd = ly × 1.034638e+16), not a rounded approximation, so results are exact to the number of decimal places you select.
Yes. The converter is a browser-side script with no network calls: your values are never uploaded, and once the page has loaded it keeps working without a connection.
Add the Light-year to Yard Converter widget to your blog or website — free, responsive, no signup. Just keep the “Widget by AltFTool” credit link visible.
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