Everyday Life

Convert Between Roman Numerals & Numbers

Built by Kevin Glover · @gloverbuilds · Verified formula

Convert any number to Roman numerals and back. Supports values from 1 to 3,999.

📅 Updated April 2026 ✅ Formula verified 📖 4 min read 🆓 Free · No sign-up

In this article

Roman Numeral System
Where You See Roman Numerals

Os Símbolos

I=1, V=5, X=10, L=50, C=100, D=500, M=1000. Regra de subtração: menor antes de maior = subtrai. IV=4, IX=9, XL=40. 2024 = MMXXIV. 1999 = MCMXCIX.

Usos Modernos

Relógios, capítulos de livros, filmes (Episódio IX), Super Bowl, reis e papas.

⚡ CalcWolf Insight

The most commonly searched Roman numeral query: "What is the Super Bowl number?" Super Bowl numbering uses Roman numerals to add prestige — Super Bowl LVIII (58) sounds more impressive than "Super Bowl 58." The exception: Super Bowl 50 used Arabic numerals because "Super Bowl L" looked like a losing record.

Frequently asked questions

Como converter?▾

Decomponha: 1994 = 1000+900+90+4 = M+CM+XC+IV = MCMXCIV.

Por que IV e não IIII?▾

Subtração (IV) é o padrão. Muitos relógios usam IIII por simetria visual.

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Kevin Glover · @gloverbuilds

Founder, CalcWolf · GLVTS · Blickr

All formulas sourced from primary references — IRS publications, peer-reviewed research, and official standards. Results are tested against independent reference calculators before publishing. Rates and brackets updated when official sources change. Editorial policy →