Content rating
Everyone
1+
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Content rating
Everyone
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About this app

Numerarium is a clean, fast Roman numeral converter supporting bidirectional conversion between Arabic numbers (1-3999) and Roman numerals (I to MMMCMXCIX).

Features:
Instant bidirectional conversion: type in either field, see results in real-time
Conversion history: all conversions are saved locally for reference
Quiz mode: test your knowledge with random Roman numeral questions
Rules reference: complete guide to Roman numeral rules including basic symbols, subtractive notation, and examples
Fully offline: no internet required for core features
No data collection: your privacy is respected
Updated on
Jun 9, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
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No data collected
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Content rating
Everyone
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App support

About the developer
Alpine Acquisition, LLC
joseaa@alpineacquisition.lat
188 W Northern Lights Blvd Ste 920 Anchorage, AK 99503-3940 United States
+1 303-332-1310

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