free U.S. Copyright Term Calculator - Determine Copyright Duration & Public Domain Status

U.S. Copyright Term Calculator

Determine the copyright duration and public domain status of U.S.-published or unpublished works under U.S. copyright law. Read disclaimer* at the bottom of the page.

Outputs

End of copyright term:

-

Current copyright status:

-

Explanation:

-

Authority:

-

Quick Fill: Search public databases for certain types of works

Auto-populate available inputs above by searching for books, sound recordings, or architectural works

⚠️ NOTE: This calculator is for works published in the United States only. Verify you are using the U.S. publication date, not the original publication date from another country.

Select work type:

Data sources: Library of Congress API (books, primary), Open Library API (books, fallback), MusicBrainz API (music), Wikidata (architecture and author death dates)

📋 Need to verify copyright registration status? Search the U.S. Copyright Office's official records at publicrecords.copyright.gov (1898-1945 and 1978-Present) or the Virtual Card Catalog (1870-1977).

Questions or feedback? Email dsbet762@gmail.com.

Inputs

Outputs

Quick Fill: Search public databases for certain types of works