Number and Word Converter Utility

 Need to quickly change a large number like 15,000,000 into its written form, or check the value of words for numbers that are verbosely spelled out? This simple bidirectional converter handles all your number-to-word and word-to-number needs for figures up to 999,999,999. It uses the U.S. standard (no hyphens, all lowercase) for word output. It's also designed to be very forgiving when you type words in, as it can handle extra spaces, mixed cases, and even words like "and" without reporting an error. Just paste a number or type out your phrase in the box. The result will instantly appear below. Tap the result box to copy the converted value.

Number & Word Converter

Enter Number (e.g., 999999) or Words (e.g., seven million...)

Result (Tap to Copy):

Copied!

*Supports positive whole numbers up to 999,999,999.

For information other ciphers and topics:

• Pager Code Look Alike Cipher Tool: This is the full 26-letter system that uses visual tricks with numbers for every letter from the 1990's before texting. This cipher will translate messages into this OG secret messaging. [Try out this cipher tool on your own messages.]

• Beeper Codes: Need a super-fast message? These are simple, standardized three-digit messages used as quick status updates (e.g., 143 for "I love you"). [View the Beeper Code Dictionary] 

• The Spartan Secret: Encrypt Messages with the Scytale Cipher: Use one of the earliest codes to be employed in the World! [Scytale Cipher Tool]

Roman Numeral Conversion Tool

Roman numerals are an ancient numerical system that uses a combination of seven Latin letters (I, V, X, L, C, D, and M).

In stark contrast, the modern Western number system, which is a game-changing advancement brought to Europe by Arabic scholars around the 10th century CE, is a positional base-10 system utilizing a crucial zero placeholder.^[1] [2] The classical Roman method is non-positional and relies heavily on additive aggregation (for example, VI=5+1=6).

To convert a Roman numeral to a standard number, we interpret its symbols from left to right: we either add the values or employ the more compact, modern subtractive notation (for example, IV instead of IIII for 4).

The classic Roman system peaks at 3,999, only reaching 3,999,999 through the use of the vinculum (an overline that acts as a ×1,000 multiplier). Try out the conversion tool linked below to translate your numbers between the different systems! 🧮

Roman Numeral Value Chart (Standard & Vinculum)
Roman Numeral	Number Value
Base Numerals (1 - 1,000)
I	1
V	5
X	10
L	50
C	100
D	500
M	1,000
Vinculum Numerals (x1,000)
I̅	1,000
V̅	5,000
X̅	10,000
L̅	50,000
C̅	100,000
D̅	500,000
M̅	1,000,000

Traditional (Subtractive) vs. Classical (Additive) Roman Numeral Notation
Value	Subtractive (Traditional)	Additive (Classical)
Base Numerals (1 - 1,000)
4	IV	IIII
9	IX	VIIII
40	XL	XXXX
90	XC	LXXXX
400	CD	CCCC
900	CM	DCCCC
Vinculum Numerals (x1,000)
4,000	I̅V̅	I̅I̅I̅I̅ or MMMM
9,000	I̅X̅	V̅MMMM
40,000	X̅L̅	X̅X̅X̅X̅
90,000	X̅C̅	L̅X̅X̅X̅X̅
400,000	C̅D̅	C̅C̅C̅C̅
900,000	C̅M̅	D̅C̅C̅C̅C̅
4,000,000	I̅V̅ [Nonstandard]	M̅M̅M̅M̅

For information other ciphers and topics:

• Pager Code Look Alike Cipher Tool: This is the full 26-letter system that uses visual tricks with numbers for every letter from the 1990's before texting. This cipher will translate messages into this OG secret messaging. [Try out this cipher tool on your own messages.]

• Beeper Codes: Need a super-fast message? These are simple, standardized three-digit messages used as quick status updates (e.g., 143 for "I love you"). [View the Beeper Code Dictionary] 

• The Spartan Secret: Encrypt Messages with the Scytale Cipher: Use one of the earliest codes to be employed in the World! [Scytale Cipher Tool]