Felo

British to American English Translator Online

Convert British English spelling, vocabulary and common idioms into American English, with every change listed so you can check it. The converter keeps your original text intact, matches whole words only, and can run the reverse direction when you need American back to British. Try it online.

What is British to American English Translator Online?

It is a conversational converter that takes British English text and returns American English. It handles three things: spelling patterns (colour → color, organise → organize), everyday vocabulary (flat → apartment, lift → elevator, queue → line), and a set of common British idioms and expressions (at the weekend → on the weekend, in future → in the future). You paste text, you get converted text plus a list of every change, and your original is never overwritten.

Key Features

A stated lexical map, not guesswork. Spelling rules, vocabulary pairs and idiom pairs are applied explicitly, so the same input always produces the same output.
Whole-word matching. Words are matched as complete tokens, so a British form buried inside a longer word is left alone rather than half-rewritten.
Change report. Every substitution is listed as source → replacement, so you can accept or reject each one.
Reverse direction. Ask for American to British and the same map runs backwards, with ambiguous pairs flagged.
Original preserved. Your input is echoed back unchanged alongside the converted version.

How to Use

Paste or type your British English text in a single message. Any length up to a few thousand words works well; for very long documents, send it in sections.
Say what you want. "Convert to American English" is enough. Add "spelling only" if you want to keep British vocabulary, or "reverse" for American to British.
Read the converted text first, then the change list. If a change looks wrong for your context, tell the agent which one and it will restore it.

Example Use Cases

British to American English words for a US audience. Take a blog paragraph written in UK spelling and vocabulary and get a version ready for American readers, with the change list showing exactly what moved.
British to American slang and idiom cleanup. Convert expressions like "I'm chuffed to bits" or "it's gone pear-shaped" into phrasing an American reader will follow, with a note when a phrase has no clean equivalent.
American to British reverse conversion. Send an American draft and ask for the British version, useful when localising the same copy for two markets.

Tips for Best Results

Tell the agent the register: formal business copy and casual chat take different vocabulary choices.
If a word is genuinely ambiguous ("football", "pants", "chips"), say which meaning you intend, or accept the flagged note and pick.
Keep proper nouns, brand names and quoted speech out of scope by saying so; the converter will leave them untouched.

FAQ

What input format does it accept?
Plain text pasted into the chat. No file upload is needed. Very long documents are best sent in sections so the change list stays readable.

How accurate is the result?
Spelling and vocabulary conversions are deterministic and reliable because they come from a fixed map. Idioms are the soft spot: some British expressions have no exact American equivalent, and the agent will say so rather than invent one. Always skim the change list before publishing.

How is this different from some free text tools?
Some free text tools advertise a British-to-American translator but actually apply an arbitrary word list that has nothing to do with British or American English, and they do not tell you which words changed. This converter states its rules, lists every change, preserves your original, and supports the reverse direction. It does not claim to rewrite grammar or guarantee that a platform will accept your text.

Does it change grammar or punctuation?
No. It changes spelling, vocabulary and listed idioms only. Sentence structure and punctuation stay as you wrote them.