How Long Should a Professional Bio Be?

Professional bios vary by platform. A LinkedIn bio is typically 2-3 sentences (100-200 words). Twitter and Instagram bios are much shorter—under 160 and 150 characters respectively. Resume summaries run 2-4 sentences. Speaker bios for conferences often span 100-200 words. The key is matching length to the platform: social profiles favor brevity, while website about pages and speaker bios allow more room. When in doubt, lead with your most compelling credential and keep it scannable.