This online calculator computes travel duration given departure time and city and arrival time and city using time zones information

The online calculator lists the languages spoken in a given country.

The Language Speakers by Country Calculator allows the user to select a language from a list and displays a table of countries where the selected language is spoken along with the number of speakers and the fraction of the total population.

Returns country or territory name by ISO code

This online calculator is a currency reference tool that provides information on the currency used in a selected country as well as obsolete currencies. It displays the name, symbol, short symbol, and effective date of the currency for the selected country.

Displays list of countries in which you can pay by the selected currency.

The calculator displays all the letters of a given language.

This calculator calculates the cost of travel by multiplying the distance traveled in kilometers (or miles) by the rate per kilometer (or mile).