How to type infinity symbol on mac? RapidTables Home > Math > Math symbols > Infinity symbol > Infinity symbol on mac How to type infinity symbol on mac? Infinity symbol typing on mac: Option+5 Hold the Option key and press 5. See also Infinity symbol Calculus symbols Math symbols Write how to improve this page Submit Feedback INFINITY SYMBOL Facebook Keyboard Mac Number Word RAPID TABLES Recommend Site Send Feedback About This website uses cookies to improve your experience, analyze traffic and display ads. Learn more OK Manage Settings