Roman numerals: Quick Facts

Written and fact-checked by

The Information Architects of Encyclopaedia Britannica

Photos and Videos

Clock with Roman numerals

When are Roman numerals used?

See All Videos, Images and Interactives →

Topics

Is It Still Important to Learn Roman Numerals?ancient Rome x c i d l m numerals and numeral systems significant figures Hindu-Arabic numerals base

Dig Deeper: More Articles That Discuss This Topic