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Romeinse Cijfers Omzetten — Gratis online tool

Zet getallen om naar Romeins en terug

Zet Arabische cijfers (1-3999) om naar Romeinse cijfers en andersom. Direct, nauwkeurig. Gratis tool zonder aanmelding.

Reference
I
1
V
5
X
10
L
50
C
100
D
500
M
1000
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Meer weten

Free Roman numerals converter

Convert Arabic to Roman (1-3999) and back. Live, instant, bidirectional.

How to use this tool

  1. 1

    Enter any number

    1 to 3999 (standard Roman range).

  2. 2

    Or enter Roman numerals

    Like XIV, MMXXVI — we convert back to digits.

  3. 3

    Both directions work live

    Type in either box, the other updates.

Frequently Asked Questions

Max number?
Standard Roman: 3999 (MMMCMXCIX). For bigger, ancient Romans used bars above letters to multiply by 1000 — we don't support that.
Reference
I=1, V=5, X=10, L=50, C=100, D=500, M=1000. Smaller before larger = subtraction (IV = 4).

Belangrijkste punten

  • Roman Numerals Converter is a free, browser-based calculator tool — convert numbers to roman and back.
  • Nee signup, no downloads, no file uploads — your data stays on your device.
  • Works on desktop, tablet, and mobile. Install as a PWA for offline access.

How to Use Roman Numerals Converter

  1. Open the tool: Launch Roman Numerals Converter on Toololis — no account or download needed.
  2. Enter your data: Paste text, enter values, or select a file directly in your browser.
  3. Get instant results: Everything is processed locally — results appear immediately.
  4. Copy or download: Save your output or share it. Bookmark for quick access next time.

Roman Numerals Converter — Quick Facts

Prijs
Gratis — geen limieten, geen watermerk, geen paywall
Privacy
100% in de browser — geen data verlaat je apparaat
Platform
Elke moderne browser — desktop, tablet of mobiel
Categorie
Rekenmachine Tools on Toololis
Offline
Works offline after first visit (Progressive Web App)
FunctieDetails
ToolRoman Numerals Converter
CategorieRekenmachine
Aanmelden vereistNee
Bestand uploadenGeen — verwerkt in browser
Mobiel ondersteundVolledig responsive
KostenVoor altijd gratis

Why Use Roman Numerals Converter?

You should try Roman Numerals Converter for a quick, private way to convert numbers to roman and back. All processing happens in your browser. Your files and data never leave your device. According to web.dev, client-side processing is the gold standard for privacy.

On the other hand, dedicated APIs or desktop tools suit batch processing better. They also handle server-side automation. For everyday tasks, browser tools offer the best speed, privacy, and convenience.

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100% Privacy. Deze tool draait volledig in je browser. Je gegevens worden nooit naar een server geüpload.