C3 Paper Size Dimensions
C3
324 x 458 mm
A C3 piece of paper measures 324 × 458 mm or 12.8 × 18 inches. Cutting it in half will create two C4 sheets of paper. C3 is part of the C Envelope series.
A C3 piece of paper measures 324 × 458 mm or 12.8 × 18 inches. Cutting it in half will create two C4 sheets of paper. C3 is part of the C Envelope series.