Utility / Converters

Age Calculator

Calculates exact age in years, months and days as of a given date (defaults to today), plus total days lived and a Life Path-style number from the birth date.

Cross-System Letter Value Comparator

Compares a word's numerical value across the Pythagorean, Chaldean and Arabic Abjad letter-value systems side by side.

Date Difference Calculator

Calculates the difference between two dates in years, months, days, total days and weeks, with the digital root of the total days.

Day of Week Finder

Finds the day of the week for any date, with its classical planetary ruler and a digital root from the date.

Digital Root Steps Calculator

Shows the step-by-step digit-sum reduction of a number down to its single-digit digital root.

Hijri Date Converter

Converts a Gregorian date to its approximate Hijri (Islamic) calendar date using the tabular Islamic calendar algorithm. May differ by a day or two from moon-sighting based calendars.

Julian Day Number Calculator

Calculates the Julian Day Number (JDN) for a Gregorian calendar date, with its digital root.

Magic Square Generator

Generates an odd-order (3-9) magic square using the Siamese method, with its magic constant and digital root.

Number Base Converter

Converts a number between binary, octal, decimal, hexadecimal or any base from 2 to 36, with its decimal value and digital root.

Number to Words Converter

Converts a whole number (0 to 999,999,999,999) into English words, with its digital root.

Prime Factorization Calculator

Finds the prime factorization of an integer (2 to 10^12), with its digital root.

Roman Numeral Converter

Converts a number (1-3999) to Roman numerals, or a Roman numeral back to a number, with its digital root.

Text to Binary Converter

Converts text to its binary (UTF-8 byte) representation, with byte and bit counts and a digital root.

Unicode Code Point Sum Calculator

Sums the Unicode code points of every non-space character in a text, with a per-character breakdown and digital root.