Advanced Number to Word Converter

Effortlessly convert numbers to their word form and vice versa with our powerful and intuitive tool. This converter handles large numbers up to the quadrillions and offers extensive customization for grammatical style, making it perfect for financial documents, check writing, and educational purposes. The bi-directional conversion happens in real-time, providing instant results as you type.

How It Works

Our converter is designed for simplicity and power. Whether you start with digits or words, the tool automatically provides the converted output in the adjacent panel.

  1. Enter Your Input: Type a number into the "Digits" panel or the written-out words into the "Words" panel.
  2. Get Instant Conversion: The tool automatically processes your input and displays the converted result in the other panel in real-time.
  3. Customize the Format: Use the options below the panels to fine-tune the grammatical style of the word output, such as casing, hyphenation, and comma usage.

Key Features

  • Bi-directional Conversion: Seamlessly switch between converting numbers to words and words back to numbers.
  • Real-Time Updates: As you type in either panel, the conversion happens instantly, with a smart delay to prevent excessive updates while you're typing.
  • Large Number Support: Powered by `BigInt`, the converter accurately handles numbers up to 18 digits long (up to the quadrillions).
  • Advanced Grammar Customization: Tailor the word output to meet specific stylistic requirements.
    • Case Styling: Choose between Title Case, UPPERCASE, or lowercase for the output.
    • Hyphenation: Toggle hyphens for compound numbers (e.g., "fifty-one" vs. "fifty one").
    • "And" Usage: Control the inclusion of "and" in numbers (e.g., "one hundred and five" vs. "one hundred five").
    • Serial Comma: Choose whether to use a serial (Oxford) comma for separating larger number groups.
  • Convenient Interface Tools:
    • Copy to Clipboard: Easily copy the results from either panel with a single click.
    • Swap Panels: Flip the layout to prioritize either the digit or word input, with a responsive icon that adapts to your screen size.
  • Smart Input Handling: The tool gracefully handles invalid characters and displays clear messages for numbers that are too large or words that are not recognized.
  • Helpful Footers: Instantly see a live count of the digits or characters in each panel as you type.

How to Use the Converter

  1. Step 1: Choose Your Input Panel
    Start typing in the "Digits" panel (left by default) or the "Words" panel (right by default).
  2. Step 2: Enter Your Data
    As you type, the other panel will automatically update with the converted result.
  3. Step 3: Adjust Formatting (Optional)
    Use the checkboxes and dropdown menu below the input areas to change the case, add/remove hyphens, and adjust other grammatical rules for the word output.
  4. Step 4: Copy or Swap
    Click the copy icon to save a result to your clipboard. Click the swap button (⇄ or ⇅) between the panels to reverse their positions on the screen.

Find Our Tool

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