CalcUseful (unit conversion・selling price review・date calculation) app for iPhone and iPad

This is an useful calculation app which have 3 functions !

Function １：Unit conversion

There are various units around the world. (e.g. kg,gallon,°F,℃)
You can converse units of “Weight”・“Length”・“Volume”・”Temperature”・
”Volume⇄Weight”(by inputting density).
By inputting numerical value and quantity of the unit which you choose,
you can get a calculation result of individual value and gross value of each unit.
(It is necessary to push “Calculate” button after you input numerical value.)

Function 2 : Selling price review

A. Profit calculation
By inputting “Cost price”・”Selling price”・”Individual weight”・”quantity”,
you can get “Sales”・”Profit”・”Commission” etc.
You can choose three input types.(“quantity unit price”・”g unit price”・”kg unit price")

B. Selling price calculation
What selling price will be if cost price is $10 and commission is 10% ?
By inputting “cost price”・”commission(%)”・”Individual weight”・”quantity”,
you can get “selling price”・”sales”・”profit” etc.
You can choose three input types.(“quantity unit price”・”g unit price”・”kg unit price")

(It is necessary to push “Calc” button after you input numerical value.)

Function 3 : Date calculation

This function is really useful
if you want to know the day of the week of the specific day,
if you want to know the date after OO days from the specific day.
if you want to know number of days between 2 specific days !

A.Which day of the week is it that day ?
By inputting year-month-day, you can get the day of the week of the day.
(It is necessary to push “DOW calc” button after you input numerical value.)

B.What’s the date OO days later ?
By inputting base date and number of days, you can get the date
after OO days from base date.
(It is necessary to push “Date calc” button after you input numerical value.)

C.The number of days between OO/OO and OO/OO !
By inputting “Date①” and “Date②”, you can get number of days between Date① and Date②.
(It is necessary to push “Number of days calc” button after you input numerical value.)