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C3 Specifications

Width (*) 324 mm
Height (*) 458 mm
Standard C Series (Envelope)
Half-Size A C4 envelope is half its size
Envelope

Can fit an A3 sheet of paper

(*) Subject to orientation

Click the diagram to see an animation representing the size relationship between C3 and C4 envelopes.

324mm

C3

C4

229mm (C4)
458mm (C3)

Compatible Printers

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Tools

DPI Calculator

Calculate the optimal DPI for printing on C3

Dimensions

UnitWidthHeight
Millimeters (mm)324458
Centimeters (cm)32.445.8
Meters (m)0.320.46
Inches (in)12.75618.031
Points (pt)918.431298.27
Picas (pc)76.54108.19
Pixels @ 72 DPI9181298
Pixels @ 96 DPI12251731
Pixels @ 300 DPI38275409