Inches Calculator: Convert Length, Area & Volume with Precision

The Inches Calculator turns any inch-based length, area, or volume into six other units with a single click. It follows the fixed definition “1 inch = 25.4 mm” (NIST, 2019) and can display results down to 1⁄64 inch. Simply pick Length, Area, or Volume, type values like “9 ⅛” or “2 3⁄5”, choose a target unit, set fractional precision, and read both decimal and fractional answers.