Convert dates
Enter one date per line. Example: Reiwa 8-08-29 / 2026-08-29
Your input is processed in your browser and is not sent to our server.
FREE WEB TOOL
Convert Japanese era dates and Gregorian dates line by line.
Enter one date per line. Example: Reiwa 8-08-29 / 2026-08-29
Your input is processed in your browser and is not sent to our server.
Japanese era / Gregorian date converter is a free online utility from BlueprintLab Tools. Convert Japanese era dates and Gregorian dates line by line.
Use it to convert text or data into another format with as little friction as possible.
No account is required. The tool is designed to complete the task directly in your browser with a short input → process → result flow.