Number Conversion Calculator
Decimal: -
Binary: -
Roman: -
Example:
- Enter
- Enter
- Enter
- Enter
25 and select Decimal to see: Binary = 11001, Roman = XXV.- Enter
1101 and select Binary to convert it to Decimal = 13, Roman = XIII.- Enter
XIV and select Roman to get Decimal = 14, Binary = 1110.
📘 Frequently Asked Questions – Number Calculator
❓ What is a Number Calculator?
🔢 A Number Calculator allows you to convert between Binary, Decimal, and Roman numeral systems. It's useful for programming, math education, and historical references.
💻 How do I convert Decimal to Binary?
🧮 Repeatedly divide the number by 2 and record the remainders.
Example: 13 → 1101 in Binary.
📜 How is a Roman numeral converted to Decimal?
📐 Assign values and add/subtract based on order. Example: IX = 9 and XI = 11.
🧠 Can the calculator handle large numbers?
📈 Yes, for Binary and Decimal. Roman numerals are typically capped at 3999 (MMMCMXCIX).
⚡ Why use an online Number Converter?
⏱️ It provides instant, error-free conversions and is helpful for students, developers, and history enthusiasts.
📱 Is the Number Calculator mobile-friendly?
✅ Yes! The calculator works smoothly on all screen sizes—desktop, tablet, and mobile.