How to Calculate Annual Salary from Hourly Wage in Japan
The basic formula is the same everywhere: Annual Salary = Hourly Rate × Hours Per Week × Weeks Worked Per Year. Japan's statutory standard workweek under the Labor Standards Act (労働基準法) is 40 hours (8 hours × 5 days), so a full-time (正社員) hourly-equivalent calculation typically starts from ¥1,200/hour × 40 hours × 52 weeks = ¥2,496,000/year. In practice, paid leave and public holidays reduce actual working weeks slightly: Japan mandates a minimum of 10 days of paid annual leave (有給休暇) after 6 months of continuous employment (rising with tenure, up to 20 days), plus roughly 16 national holidays per year. As of 2024, the nationwide weighted-average minimum wage is approximately ¥1,050/hour, with Tokyo the highest at roughly ¥1,163/hour — figures are revised every October, so check your prefecture's current rate for precision.