Roman Numeral Converter
Convert Roman numerals to numbers or numbers to Roman numerals quickly and accurately.
Related calculators
Back to Conversion CalculationsCase Converter
Change text case for headings, titles, or formatting consistency.
Color Code Converter
Enter a color in any format to see the equivalent codes instantly.
Data Transfer Speed Calculator
Switch between bits per second and bytes per second for network and file transfers.
Fuel Consumption Converter
Convert fuel consumption for cars, bikes, and travel planning with accurate formulas.
Kitchen Measurement Converter
Switch between teaspoons, tablespoons, cups, fluid ounces, milliliters, liters, pints, quarts, and gallons in one place.
How Roman numerals work
Roman numerals use letters I, V, X, L, C, D, and M to represent values.
Numbers are formed by combining symbols and using subtractive pairs such as IV (4) and IX (9).
For values above 3999, this converter uses parentheses to mean x 1000 (e.g. (V) = 5000).