Binary and hexadecimal converter
Convert a nonnegative whole decimal number to binary and hexadecimal.
Convert a whole number from 1 to 3,999 into standard Roman-numeral notation.
Convert a whole number from 1 to 3,999 into standard Roman-numeral notation.
Whole number: 2026.
Roman numeral: MMXXVI .
Standard modern notation is used; historical conventions can differ.
Results are rounded for display; calculations use unrounded values. Read our calculation methodology.
Convert a whole number from 1 to 3,999 into standard Roman-numeral notation. The displayed figures use the inputs and formula shown on this page.
Use the roman numeral converter to compare a scenario, check an estimate, or verify a manual calculation.
| Input | What to enter |
|---|---|
| Whole number | Enter a number of at least 1 and no more than 3999. |
Standard modern notation is used; historical conventions can differ.
It is exact for the stated mathematical model and entered values. Real-world results can differ when rates, timing, fees, definitions or measurement conditions differ.