Professional Calculation Tools
We provide reliable online calculator tools based on accurate algorithms and verified data. All tools do not collect user personal information and are completely free to use.
π Japanese Era Converter
Convert between Gregorian calendar and Japanese era years (Reiwa, Heisei, Showa, Taisho, Meiji) with high accuracy.
π Service Guide & Tool Instructions
Detailed usage instructions and service guide for each tool.
π What is Japanese Era Converter?
The Japanese Era Converter helps convert between the Gregorian calendar and Japan's traditional era system. It currently supports 5 major eras: Reiwa (什ε), Heisei (εΉ³ζ), Showa (ζε), Taisho (倧ζ£), and Meiji (ζζ²»). Based on accurate historical date data, it can be safely used for document preparation and academic research.
π How to Use Zodiac Calculator
The zodiac calculator determines your corresponding zodiac sign (one of 12 animals) when you enter your birth date. It calculates based on the traditional lunar calendar starting point for more accurate results and provides detailed information and cultural meanings for all 12 animals (rat, ox, tiger, rabbit, dragon, snake, horse, sheep, monkey, rooster, dog, pig).
π³οΈ Election Age Checker Guide
The Election Age Checker verifies if you are eligible to vote in the 2025 21st Presidential Election (must be 18 years or older). It performs accurate age calculations according to current Public Official Election Act standards, allowing you to check your voting eligibility in advance with clear results based on legal grounds.
π Privacy Protection & Security
Our service does not collect any personal information from users. All calculations are processed directly in your browser, and your input data is never transmitted externally, ensuring complete privacy protection. No registration or software installation required - use directly from your web browser.
β‘ Accuracy and Reliability
All calculation algorithms are developed according to relevant laws and standard criteria. We provide accurate results through continuous verification and updates, safe for academic and business use. For Japanese eras, calculations accurately reflect official start and end dates.
π Completely Free Service
All calculator tools are provided completely free of charge. Anyone can use them freely without hidden costs or restrictions, and we continuously strive to improve our services. Optimized for all environments - mobile and desktop - for convenient use anytime, anywhere.
π Frequently Asked Questions (FAQ)
Q: Is the Japanese era conversion accurate?
A: Yes, we calculate based on the exact start and end dates of all eras. We use accurate periods for Meiji (1868-1912), Taisho (1912-1926), Showa (1926-1989), Heisei (1989-2019), and Reiwa (2019-present).
Q: What does "lunar calendar basis" mean in zodiac calculation?
A: Traditionally, zodiac signs are calculated based on the lunar calendar starting point (usually around February 4th). For example, if born in January, the previous year's zodiac applies. This follows traditional Eastern calendar systems.
Q: Can the election age criteria change?
A: Currently, those 18 years or older are eligible to vote, as specified in the Public Official Election Act. If the law changes, we will update accordingly. It's set based on the 2025 presidential election.
Q: Can I use this on mobile devices?
A: Yes, it's available on all devices. You can use it immediately on smartphones, tablets, desktops, or any device with a web browser. Responsive design optimized for each screen size.