Braille alphabet

Braille↔ASCII table↔UNICODE↔SimBraille↔dot patterns

Table shows how to write ASCII characters in Braille. In addition to standard international characters, polish diactritic character are presented.

Braille translator

Braille↔translator↔text to Braille conversion

Calculator allows you to translate given plain text into Braille.

Calculator forecasts future value of your money after applying inflation and/or rate of interest.

Cost of area

Price of land, wall, tiling, etc.

The cost-of-area calculator. It finds the price for a piece of land/property/flat/floor, a cost of painting the wall, a quantity of seed you need to plant your lawn... The expenditure of anything that depends on area in many different units!

Online calculator of electric energy cost. First you set the price for a 1kWh (one kilo-watt). Then you specify all the electric devices you use, and how much of time they are used daily. The calculator computes the yearly, montly and daily usage of an electric energy, and its overall cost... This can be used for household computation, but also for any business costs estimation.

Country ISO codes

ISO 3166-1↔ISO 3166-2↔alpha-2↔alpha-3↔numeric code↔us↔uk↔de↔etc.

Table shows list of ISO 3166-1 and ISO 3166-2 codes assigned to different countries.

Currency ISO codes

ISO 4217↔alpha-3↔numeric code↔USD↔GBP↔EUR↔etc.

Table shows list of ISO 4217 codes assigned to different currencies such as EUR for Euro, USD for american dollar etc.

Dimensionless quantities units

percent↔permile↔basis point↔ppm↔uno↔etc.

Converts dimensionless quantity units such as percent, permile, ppm (parts per million) mU (miliuno) etc.

Electoral system

electoral system↔election↔number of seats↔parliament↔D'Hondt method↔etc.

Calculator finds out number of seats in parliament using D'Hondts method.

Calculator helps you with common calculations related to fuel cost and consumption. You will find out how much you spend on fuel, what is the average fuel consumption of your vehicle, how much you will spend on the journey in your car or how much fuel you should refuel in order to reach the goal etc.

Fuel consumption units

9 fuel consumption units
miles per gallon↔gallons per 100km etc.

Fuel consumption units converter. Converts l/100km, miles/gallon and many other british, american and metric based units.

GS1 prefixes

GS1↔EAN↔country code↔barcode prefix↔etc.

Table summarizes GS1 country codes also known as barcode prefixes.

IBAN codes

IBAN↔BIC↔format↔country codes↔BBAN↔length↔etc.

Table summarizes formats of IBAN (International Bank Account Number) numbers used in different countries.

Number to words

one↔two↔three fourths↔thousand↔one tenth↔seven ten-thousandth↔etc.

This calculator converts given numbers to its textual forms e.g. 3.14 into three and fourteen hundredths.

Paper size

A3↔A4↔A5↔B4↔C5↔RA0↔SRA3↔etc.

Table shows common paper size standards such as A4, A5 etc.

Polish PESEL analyzer

poland↔pesel↔analyzer↔date of birth↔serial number↔gender↔control digit↔etc.

Calculator decodes given PESEL number (unique ID assigned to each person in Poland) and breaks it into date of birth (year, month, day), serial number, gender and checksum (control digit) parts. Just enter your PESEL and we'll show you what data is hidden inside it.

Polish PESEL generator

poland↔pesel↔random generator↔date of birth↔age↔etc.

Calculator generates random PESEL numbers (unique ID assigned to each person in Poland) matching given criteria such as date of birth, age range or gender.

Polish notarial wages calculator.

Property purchasing costs online calculator - polish only.

Roman numbers calculator

Roman to Arabic↔Arabic to Roman↔I, II, III, IV etc.

Convert Roman numbers to Arabic and vice versa.

School break calendar

winter holidays↔summer holidays↔school break↔school calendar

Table shows when summer and winter holidays are in different places in the world. Both actual (ongoing) and historical data are included.

Comparison of different shoe size systems - European (EU), United Kingdom (UK, British), foot size in centimeters (CM) and few more.

Sound intensity level (dB)

sound level↔decibel↔logarithmic scale↔noise level↔acoustic pressure↔etc.

Table shows examples of sound sources with various intensity level given in decibels.

Stop watch

Stopwatch online↔timer↔time measure

The stop watch online. Simply start the timer and catch your events with millisecond precision.

Calculator finds out tire production date (year, weak and month) based on DOT index printed on your tire.

Table summarizes how to read load index codes printed on tyres and more.

Table summarizes how to read speed ratings codes printed on tyres and more.

Put in your wedding date and Calculla will show you list of your wedding anniversaries.