Roman Numerals Converter

A simple tool to convert numbers to Roman numerals and back.

Number (1-4999)

Roman Numeral

How it Works:

Roman Numerals Chart

100

500

1000

Learn More About Roman Numerals

A Roman numerals converter is a tool that translates standard numbers (like 1, 2, 3) into their Roman numeral equivalents (I, II, III) and vice versa. It's a fantastic educational resource for understanding this ancient number system, making it easy to convert any number, including for a special roman numeral date.

Our converter uses a set of rules. To turn a number into a Roman numeral, it breaks the number down into thousands, hundreds, tens, and ones, then represents each with symbols like M (1000), C (100), X (10), and I (1). For converting back, it reads the Roman symbols from left to right, adding their values, but also knows to subtract when a smaller numeral (like I) comes before a larger one (like V for IV, meaning 4).

Date Activities: Have students convert today's date or their birthdays into a roman numeral date.
Scavenger Hunt: Write clues in Roman numerals and have students use the converter to solve them.
Math Problems: Create simple addition or subtraction problems using Roman numerals.
History Connection: Use the converter while discussing historical events from the Roman Empire.

Children are typically introduced to Roman numerals around 3rd or 4th grade (ages 8-10). They usually start by learning Roman numerals 1-100 and then expand to larger numbers. This tool is perfect for supporting that curriculum, especially with the interactive chart and step-by-step explanations.

Example 1: Converting 55

The number 50 is represented by 'L' in Roman numerals. The number 5 is 'V'. So, 55 becomes LV.

Example 2: Converting 2024

2000 is MM (1000 + 1000). 20 is XX (10 + 10). 4 is IV (5 - 1). Put it all together, and you get MMXXIV.

Roman Numerals Converter

How it Works:

Roman Numerals Chart

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Number to Roman Numeral Converter

How it Works:

Roman Numerals Chart

Related Resources

The Roman Empire and the Pax Romana

Writing Numbers & Names

Life in the Roman Empire

Numbers 1—5

Numbers 10—15

Numbers 5—10

Numbers 15—20

Numbers 0—20

Expanded Form Multi—Digit Whole Numbers

Numbers Review 0—10

Curriculum Resources by Grade

Find learning resources for:

Related Topics

Scale Factor Calculator

Age Calculator

Cylinder Volume Calculator

More in Calculators

Connect with Workybooks!