Conv.Boy has 3 functions
# Unit convertion of length area and etcetera.
# Price calculation between in two other country currency.
# Calculation period of two selected date.
You can convert the unit of length, area, volume, weight, pressure, temperature, speed.
when you input the currency value of before and after exchange, the exchange rate is holded.
this application can calculate the price in the origin currency from exchanged currency.
[Calculation period of two selected date]
this appllication calculate the ages, days before celebration etcetera