Updated Jul 23, 2026 · v2.1.7
Convert easily Decimal Number to Roman Numerals and vice versa
Roman Numerals Converter – Convert Numbers to Roman Numerals and Back Roman Numerals Converter is a simple and easy-to-use app for converting decimal numbers to Roman numerals and Roman numerals back to numbers. Whether you are learning how Roman numerals work, solving a historical or educational problem, or simply need a quick Roman numeral conversion, this app makes the process fast and straightforward. Convert Decimal Numbers to Roman Numerals Enter a regular number using the numeric keyboard, and the app will instantly convert it into its equivalent Roman numeral. For example: 6 → VI 10 → X 49 → XLIX 2024 → MMXXIV Simply tap the first input field, enter your number, and get the corresponding Roman numeral. Convert Roman Numerals to Numbers You can also convert Roman numerals into their equivalent decimal or integer values. Select the second input field and use the dedicated Roman numeral keyboard to enter symbols such as I, V, X, L, C, D, and M. For example: VI → 6 X → 10 XLIX → 49 MMXXIV → 2024 The app is useful for quickly translating Roman numerals into modern numbers and understanding the relationship between the two numbering systems. A Simple Roman Numeral Translator With support for conversion in both directions, this app works as a Roman numeral converter, Roman numeral translator, and number-to-Roman-numeral converter in one convenient tool. Use it whenever you need to: Convert numbers into Roman numerals Convert Roman numerals into integers Check the value of an unfamiliar Roman numeral Learn and practice Roman numeral notation Verify Roman numeral answers quickly Explore how Roman numerals represent modern numbers Learn How Roman Numerals Work Roman numerals are based on a combination of seven main symbols: I = 1 V = 5 X = 10 L = 50 C = 100 D = 500 M = 1000 Some Roman numerals use subtractive notation. For example, IV represents 4 because 1 is placed before 5, while IX represents 9. Similarly, XL represents 40 and CM represents 900. Whether you need to convert decimal numbers to Roman numerals or translate Roman numerals into numbers, Roman Numerals Converter provides a quick and convenient way to get the answer. Fast, Simple, and Easy to Use No complicated settings or unnecessary steps. Just choose the type of conversion you need, enter your number or Roman numeral, and get the result. Try examples such as 2018 → MMXVIII or VI → 6 and discover how easy Roman numeral conversion can be.
8 years on Google Play
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