Convert Numbers to Words
Write numbers clearly for checks, invoices, documents, and everyday use.
Number to Words Converter
Enter a number above and click "Convert" to see it in words.
Try examples: 42, 1999, 3.14, or 1000000
Popular number tools
Browse All Tools & Resources โ
Number to Words
Spell any whole number or decimal in English.
Check Writer
Write payment amounts correctly for checks.
Ordinal Numbers
Convert 1, 2, and 3 to first, second, and third.
Roman Numerals
Convert Roman numerals and Arabic numbers.
Numbers in Languages
See number spelling across multiple languages.
Currency in Words
Format currency amounts for business documents.
Use numbers with confidence
Core Conversion Tools
Number to Word Converter
Convert 123 โ one hundred twenty-three
Ordinal Number Converter
Convert 1st, 2nd, 3rd โ first, second, third
Roman Numeral Converter
Convert XVI โ 16
Number Spelling in Multiple Languages
See how numbers are written in different languages
Percentage Calculator
Calculate percentages with ease
What Percentage of the Year Has Passed
Track the progress of the current year
Split Money Calculator
Divide money amounts fairly between people
Backwards Percentage Calculator
Calculate original values from percentage results
Fourier Series Expansion Calculator
Calculate Fourier series coefficients and expansions
HEX to Pantone Converter
Convert HEX color codes to Pantone instantly โ and vice versa. Find matching brand colors with this easy tool.
Factorial Calculator
Calculate n!, binomial coefficients, and factorial divisions with step-by-step solutions
Coefficient of Variation Calculator
Calculate CV for statistical analysis, risk assessment, and data comparison with interpretation guide
Eulers Formula Calculator
Calculate e^(iฮธ) = cos(ฮธ) + iยทsin(ฮธ) with interactive unit circle visualization
Chi-Square Test Calculator
Statistical significance testing with goodness of fit, independence analysis, and step-by-step p-value calculation guide
Hypergeometric Distribution Calculator
Calculate sampling probabilities without replacement with formula explanation and step-by-step examples
De Moivre's Theorem Calculator
Calculate complex number powers and nth roots using De Moivre's theorem with step-by-step solutions and polar form conversion
Pink TI-84 Calculator Online
Free cute pink graphing calculator with full TI-84 functionality. Perfect aesthetic calculator for students - scientific calculations, graphing, and more in adorable pink design
Binary Calculator
Convert and calculate with binary, hex, and octal numbers online
Minutes to Hundredths of an Hour
Convert minutes to decimal hours for payroll, time cards, and billing
Military Time Conversion Guide
Convert 1030, 1330, 1630 and more โ two-way military time converter with full chart
Educational Resources
How to Write Checks with Numbers in Words
Step-by-step guide to writing amounts on checks
Rules for Hyphenating Number Words
When and how to hyphenate numbers in text
Number Words in Different Number Systems
Binary, Hexadecimal, and more
History of Number Words and Numerals
The evolution of how we write and say numbers
Number Words in Mathematics Education
Best practices for teaching number concepts
Pascal's Triangle Formula & Binomial Expansion
Interactive guide to Pascal's Triangle, combinations, and binomial expansions with calculators
Pythagorean Theorem and Pythagorean Triples
Complete guide with theorem calculator, triples validator, Euclid's generator, and real-world applications with answer key
Nonlinear Schrรถdinger Equation Dynamics
Explore soliton solutions, inverse scattering transform, and mathematical physics applications
Geometric Perimeter Guide
Interactive visual guide to understanding perimeters and circumferences of various geometric shapes with formulas and calculator
Cauchy Residue Theorem Examples
Step-by-step complex analysis with residue calculations
Conic Sections - Parabola
Explore parabolic curves, focus properties, and geometric applications
Transition Probability Matrix Calculator
Calculate Markov chain transition probabilities with smoothing
Math Symbols List
Complete reference of math notations from arithmetic to calculus - click to copy!
What Adds To and Multiplies To
Find two numbers that add to a sum AND multiply to a product โ essential for factoring quadratics
Programming Number Systems
Master binary, hex, and octal for coding with practical examples
Historical Number Systems
Explore ancient counting methods from Roman numerals to Mayan mathematics
Number Conversion Formulas
Learn decimal, binary, and hex conversion formulas with step-by-step examples
Visualization Techniques
Transform abstract numbers into visual patterns with charts, graphs, and models
Math Worksheet Generator
Create custom practice sheets instantly with adjustable difficulty and operations
GSE Geometry Unit 4 Help
Step-by-step solutions for circles and arcs problems
Square Root Curve Chart
Interactive grade curve calculator with visualization
Full-Year Jewish Curriculum
Complete K-12 program for schools & homeschool
Capacitor Formula
Calculate capacitance, charge & voltage with examples
Parallel & Perpendicular Lines
Free worksheet with 20 problems & answer key
AP Calculus Homework Help
Differentiability & continuity explained clearly
Programming Tutorials
Python, TypeScript, C, and NumPy tutorials with practical examples
Computer Science Fundamentals
Algorithms, automata theory, digital electronics, and signal processing
Specialized Applications
Legal Document Number Formatting Guide
Proper number formats for legal documents
Financial Number Word Standards
Formatting numbers for financial documents
Large Number Name Reference
Billion, Trillion, Quadrillion, and beyond
Scientific Notation and Number Word Equivalents
Converting between scientific notation and words
Fractions and Decimals in Words
How to express partial numbers in text
Math Notation Guide
Scientific notation converter plus interval & set notation explained with examples
Fishing Reel Identification Tool
Lookup manufacture dates for Shimano, Abu Garcia, and Penn reels by serial number
Fun and Interesting Content
Number Word Etymology and Origins
Where our number words come from
Number Idioms and Phrases Explained
"Third time's a charm" and other sayings
Number Puzzle Generator
Create fun number-based puzzles
Number Trivia by Digit
Fascinating facts about every number
Number Word Games for Learning
Fun games to practice number words
Gabriel's Horn Mathematics
Explore the mathematical paradox
The Sierpinski Triangle
Discover the uncountable fractal pattern
Orbital Period Equation
Calculate orbital periods in celestial mechanics
Sliding Number Puzzle Game
Play the classic 8-tile Number Puzzle Game online
Why 69 Is the Coolest Number
Discover the only number whose square and cube use all digits from 0โ9 once. Mind-blowing math fun!
Biblical Meaning of Numbers
What do numbers like 3, 7, and 9 mean in Scripture? Discover their spiritual significance with Bible verses.
Banach-Tarski Paradox Explained
Can one sphere become two? Explore this mind-bending paradox in mathematics with simple visuals and explanations.
ABU Ambassadeur 5000 Lookup
Find the manufacturing year of your ABU 5000 fishing reel by serial number. Quick reference for vintage collectors.
Archangel Sandalphon Number
Discover the spiritual meaning of numbers linked to Archangel Sandalphon. Learn how divine messages reach you.
82 to 1 Prime Numbers
Browse the list of prime numbers from 82 down to 1. A quick reference for students, teachers, and math lovers.
Causality & Causal Inference
Comprehensive guide to causality vs causal inference with practical methods for handling long-tailed data distributions
Golden Ratio for Men
Calculate face and body proportions using the Golden Ratio (1.618) with interactive calculators
Bank Routing Numbers Guide
Find official routing numbers for US banks and learn when it's safe to share them
Number One in Chinese
Learn to write and pronounce ไธ (yฤซ) and ๅฃน with usage examples and pronunciation guide
Number One in Japanese
Learn ichi (ไธใปใใกใปใคใ) with counter words, pronunciation, and cultural usage
Geometry Puzzle: Shaded Area
Solve this viral math puzzle: find the area of the shaded region in a square with two semicircles
What is Bar Notation?
Learn how to write repeating decimals with bar notation - simple explanation with examples
Number One in Japanese
Master how to say and write "1" in Japanese - ichi, hitotsu, and the complete counter system
Rite of Passage Meaning
Learn the correct spelling and meaning of this common phrase
Unit Conversion Tools
Kilograms to Pounds Converter
Convert kg to lbs instantly with charts and formulas
Celsius to Fahrenheit Converter
Switch between Celsius and Fahrenheit temperature scales
Density Converter (Cu Ft to Lbs)
Calculate weights based on volume and material density
PSI to Head (Feet) Converter
Convert water pressure to its equivalent vertical height
Square Feet to Linear Feet
Convert area to board length for lumber and flooring
Cubic Yards to Tons Calculator
Estimate the weight of bulk materials like gravel and sand
Speed Converter (MPH to KM/H)
Fast speed unit conversion for commuters and athletes
Practical Tools
Invoice/Receipt Number Word Generator
Format numbers for business documents
Age in Words Calculator
Express ages in written form
Date in Words Converter
Convert dates to written text
Time in Words Display
Express time in written form
Currency Amount in Words Tool
Convert monetary values to text
Random Phone Number Generator Texas
Generate random Texas phone numbers
Random Phone Number Generator California
Generate random Texas phone numbers
4-Digit Random Number
Generate clean 4-digit numbers with one click. Perfect for PINs, games, and simple randomness.
Professional Resources
Number Style Guide for Writers and Editors
Best practices for using numbers in text
Programming Functions for Number-Word Conversion
Code snippets in various languages
API Documentation for Developers
Integrate our conversions into your projects
Number Word Localization Standards
Regional differences in number formatting
Accessibility Guidelines for Numbers in Content
Making number content accessible to all
Thermodynamics Cheat Sheet
Essential thermodynamics concepts and formulas
Information Theory & Thermodynamics Slides
Educational slides connecting information theory and thermodynamics
Standards Alignment Guide
Understanding standards in education, business, and documentation
🏦 Bank Routing Numbers by State
Find ACH and wire routing numbers for Chase, Bank of America, Wells Fargo, and local banks โ covering all 50 US states.
California
Chase, BofA, Wells Fargo, Golden 1 CU
Texas
Chase, Frost Bank, Prosperity Bank
New York
Chase, Citibank, TD Bank, NYCB
Florida
Chase, SunTrust, Centennial Bank
Illinois
Chase, BMO Harris, Wintrust
Pennsylvania
Chase, PNC, Citizens Bank
Ohio
Chase, Huntington, KeyBank
Georgia
Chase, Truist, Ameris Bank
North Carolina
Chase, Truist, First Bank NC
Michigan
Chase, Flagstar, Chemical Bank
Washington
Chase, Banner Bank, BECU
All 50 States
Complete routing number directory
🇨🇦 Canada Bank Transit Numbers
Find transit numbers and institution codes for RBC, TD, Scotiabank, BMO, and all major Canadian financial institutions.
RBC Royal Bank
Canada's largest bank by assets
TD Canada Trust
Institution 004 guide
Scotiabank
Institution 002 codes
BMO Bank
Institution 001 - Canada's First
CIBC
Institution 010 and Simplii
Tangerine
No-fee digital banking (614)
EQ Bank
High-interest digital (623)
Simplii
CIBC's digital division
National Bank
Quebec's major institution (006)
Desjardins
Largest credit union federation
ATB Financial
Alberta's Crown bank (219)
All Canada
Complete transit number guide