Area sheet conversion: 1 = 10000 square meters, 1 square meter = 100 square decimeter.
A complete set of mathematical unit conversion formulas; 1 square decimeter = 100 square centimeter, 1 square centimeter = 100 square millimeter.
Weight unit conversion: 1t = 1000kg, 1kg = 1000mg, 1kg = 1kg.
Currency unit conversion: 1 yuan = 10 angle, 1 angle = 10 minute, 1 yuan = 100 minute.
Time unit conversion: 1 century = 100, 1 year = 65438+February, and (3 1 day)1.3.5.7.35438+00.438. Leap year 366 days 1 day =24 hours 1 hour =60 minutes 1 minute =60 seconds 1 hour =3600 seconds.