Felo
US State Abbreviation Converter Online
What is US State Abbreviation Converter Online?
US State Abbreviation Converter Online is a conversational tool for the common writing job of switching between full US state names and their two-letter postal abbreviations. Paste a sentence, a mailing list, an article draft or a spreadsheet column, and the agent returns the same text with the state references converted. It also handles the reverse direction, so an address line reading "Austin, TX" can become "Austin, Texas" when you need the long form.
The job is deliberately narrow. This is a fixed dictionary of the 50 states, not a general translator and not a natural-language rewriting engine. Everything outside the list is preserved exactly as you typed it, including punctuation, line breaks and capitalization of unrelated words.
Key Features
- Two-way state conversion. Full names become postal abbreviations, and postal abbreviations become full names, in the same request.
- Explicit direction control. You can ask for "to abbreviations", "to full names", or let the agent auto-detect based on what it finds in the text.
- Whole-word matching. "Indiana" is converted, but the letters inside an unrelated word are not touched. This avoids the silent corruption that substring replacement can cause.
- Change list. After the converted text, the agent reports which entries were replaced and how many times, so you can audit the result before using it.
- Preserved formatting. Line breaks, spacing and punctuation survive the conversion, which matters for address blocks and lists.
How to Use
- Paste the text you want to convert and state the direction, for example "to abbreviations: I moved from Ohio to North Carolina last spring."
- Read the converted text in the copyable block. If you asked for auto-detect, check the direction note above the block.
- Review the change list. If a short form was ambiguous, ask for the specific state you meant and the agent will redo the conversion.
Example Use Cases
- Shortening a travel article. A writer covering a road trip from Washington to Florida wants compact state references for a map caption and asks for US state abbreviations throughout the paragraph.
- Expanding mailing addresses. An operations assistant has a column of lines like "Denver, CO" and "Boise, ID" and needs full state names for a formal document, so they paste the list and request full names.
- Checking a draft for consistency. An editor wants every state reference in one style, so they paste a section and ask which entries were converted and whether any short forms were left unmatched.
Tips for Best Results
- Say the direction explicitly when your text contains both full names and abbreviations; auto-detect picks the majority pattern and tells you which one it chose.
- Two-letter forms are matched case-insensitively, so "MS" and "Ms" both expand to Mississippi; the change list reports the form as found.
- If you need the District of Columbia handled, mention it explicitly; the agent will treat it as an optional extra beyond the source list and will say so in the change list.
FAQ
What input format does it accept?
Plain text pasted into the chat. There is no file upload requirement; long lists and multi-line address blocks work as long as you paste them. Very long documents are handled in sections, and the agent will say when it split the work.
How accurate is the conversion?
The mapping is a fixed, verifiable list of state names and postal codes, so conversions are exact for listed entries. Accuracy limits come from ambiguity: short forms that are also ordinary words, and text where the intended direction is unclear. The agent flags both rather than guessing silently.
How does the matching work?
This agent states the direction it applied, matches whole words so substrings inside other words are not replaced, preserves unmatched text, and returns a change list you can check.
Does it translate other languages or create images?
No. It performs one substitution job on English text containing US state references.