Culture and Reference

Roman numerals: 1 to 50

Seven letters make every Roman numeral: I (1), V (5), X (10), L (50), C (100), D (500) and M (1,000). The table below covers 1 to 50, computed directly from those symbol values, not copied from a chart.

  • I1
  • II2
  • III3
  • IV4
  • V5
  • VI6
  • VII7
  • VIII8
  • IX9
  • X10
  • XI11
  • XII12
  • XIII13
  • XIV14
  • XV15
  • XVI16
  • XVII17
  • XVIII18
  • XIX19
  • XX20
  • XXI21
  • XXII22
  • XXIII23
  • XXIV24
  • XXV25
  • XXVI26
  • XXVII27
  • XXVIII28
  • XXIX29
  • XXX30
  • XXXI31
  • XXXII32
  • XXXIII33
  • XXXIV34
  • XXXV35
  • XXXVI36
  • XXXVII37
  • XXXVIII38
  • XXXIX39
  • XL40
  • XLI41
  • XLII42
  • XLIII43
  • XLIV44
  • XLV45
  • XLVI46
  • XLVII47
  • XLVIII48
  • XLIX49
  • L50

Como ler este número

The seven base symbols

I=1, V=5, X=10, L=50, C=100, D=500, M=1000. Every other number is built by combining these, read largest to smallest.

Como ler este número

Why IV is not IIII

When a smaller symbol sits before a larger one, it subtracts: IV is 5−1=4, IX is 10−1=9. This subtractive rule only applies to specific pairs (IV, IX, XL, XC, CD, CM) — not any two symbols.

Where are Roman numerals still used today?

Clock faces, book chapters, movie sequels, the names of monarchs and popes (Elizabeth II, John Paul II), and the Super Bowl all keep Roman numerals alive — mostly in contexts where a number needs to look formal or traditional rather than be easy to calculate with.

That trade-off is exactly the numeral system's weakness: there is no symbol for zero, and doing arithmetic directly on Roman numerals (adding, say, XXVII and XIV) is far harder than with digits — which is why the Hindu-Arabic system (0–9, place value) replaced it everywhere multiplication and division actually happen.