Paper Size Reference

Quick reference for standard paper sizes including ISO A-series, North American, and envelope sizes.

NameWidthHeightCategoryScale
A0841 mm1189 mmISO A Series
A1594 mm841 mmISO A Series
A2420 mm594 mmISO A Series
A3297 mm420 mmISO A Series
A4210 mm297 mmISO A Series
A5148 mm210 mmISO A Series
A6105 mm148 mmISO A Series
Letter216 mm279 mmNorth American
Legal216 mm356 mmNorth American
Tabloid (11x17)279 mm432 mmNorth American
Executive184 mm267 mmNorth American
B4 (ISO)250 mm353 mmISO B Series
B5 (ISO)176 mm250 mmISO B Series
C4 (Envelope)229 mm324 mmEnvelopes
C5 (Envelope)162 mm229 mmEnvelopes
DL (Envelope)110 mm220 mmEnvelopes
#10 (Envelope)105 mm241 mmEnvelopes

About Paper Sizes

ISO A-Series: Each size is half the area of the previous. A0 = 1 m². Aspect ratio: 1:sqrt(2).

A4: The most widely used paper size globally (210 x 297 mm).

Letter: Standard in the US and Canada (8.5 x 11 inches / 216 x 279 mm).

Legal: Used for legal documents in North America (8.5 x 14 inches / 216 x 356 mm).

Related Tools

Results are for informational purposes only. Verify important calculations independently.