Every step below is from an official source
Switch from Bitwarden to Google Password Manager
What to do at Bitwarden before you leave, what Google Password Manager needs when you join, and everything else the switch touches. Your full plan is built in your browser and stays there.
Official sources reviewed . How we review sources
At Bitwarden, before you leave
Export from the Bitwarden web appBefore
In the web app, select Tools, then Export, and choose what to export. Pick .json, .csv, encrypted .json, or .zip with attachments, then confirm with your master password or an email code.
Export vault dataBitwarden Help Center. ReviewedKnow what Bitwarden exports leave outBefore
No export format includes trash items or Sends. Individual vault exports do not include items owned by an organization.
Export vault dataBitwarden Help Center. ReviewedUse .json to keep cards, identities and passkeysBefore
Only .json exports include cards, identities, stored passkeys and SSH keys.
Export vault dataBitwarden Help Center. ReviewedProtect and delete an unencrypted exportAfter
Unless the export is encrypted, don't store or send it over insecure channels like email. Delete the file right after use.
Export vault dataBitwarden Help Center. Reviewed
At Google Password Manager, when you join
Import a CSV file at passwords.google.comDuring
Go to passwords.google.com, select Settings, then Import, then Select File. Choose your file and select Import. Only .CSV files can be imported.
Import passwords to your Google Account - Google Account HelpGoogle. ReviewedImport up to 3,000 passwords at a timeBefore
You can import 3,000 passwords at a time. Your Google Account can store up to 10,000 passwords.
Import passwords to your Google Account - Google Account HelpGoogle. ReviewedDelete the CSV file after importingAfter
After the import, delete the .CSV password file. Otherwise anyone with access to the device can open it.
Import passwords to your Google Account - Google Account HelpGoogle. ReviewedSearch by site name for missing passwordsAfter
Not all app and site names move into the right field. If you can't find an imported password, search for the app or site name.
Then: everything else the switch affects
The steps above are what Bitwarden and Google Password Manager say. Your full checklist adds the accounts, codes, payments and devices that depend on your password manager, in a safe order. It's built from your answers, in your browser.