How It Works
Uses canonical subtractive notation (IV, IX, XL, XC, CD, CM). Noncanonical forms such as IIII are rejected.
FAQs
How does this calculator work?
Uses canonical subtractive notation (IV, IX, XL, XC, CD, CM). Noncanonical forms such as IIII are rejected.
What assumptions should I check?
Check the units and definitions shown beside each input. Results use the values you enter.