British and American English share most vocabulary, but spelling differs in predictable ways. Choosing the right convention — and using it consistently — matters for academic, professional, and published writing.
This guide explains the main differences and how to choose.
Common Spelling Differences
- -ise vs -ize: British "organise," American "organize."
- -our vs -or: British "colour," American "color."
- -re vs -er: British "centre," American "center."
- Doubling consonants: British "travelling," American "traveling."
Choose One and Stay Consistent
Neither convention is wrong — but mixing them in one document looks careless. Choose British spelling for a UK audience or institution, American for a US one, and apply it throughout.
An Editor Can Help
A native English editor checks that your spelling is consistent and appropriate for your audience. Request a free sample edit and choose your editor.
