We make it easy to find the correct paper size in American sizes or converted to Millimeters.
Paper Size Background Locations
A4 paper is the standard paper size used worldwide, with the exception of countries in North America. The US, Canada, and Mexico have standardized 8.5 inch by 11 inch (about 21.5 cm by 27.9 cm) paper, typically referred to as "letter" size. A4 paper is slightly longer, at about 8.27 inches by 11.75 inches (21 cm by 29.7 cm). This and other types of "A" paper sizes are based on a metric measurement system and established through international European standards.
American Paper Sizes
|American Paper Sizes|
|Size||Width x Height (mm)||Width x Height (in)||Aspect Ratio|
|Half Letter||140 x 216 mm||5.5 x 8.5 in||01:01.5|
|Letter||216 x 279 mm||8.5 x 11.0 in||01:01.3|
|Legal||216 x 356 mm||8.5 x 14.0 in||01:01.6|
|Junior Legal||127 x 203 mm||5.0 x 8.0 in||01:01.6|
|Ledger / Tabloid||279 x 432 mm||11.0 x 17.0 in||01:01.5|
4A0 to A10 Paper Sizes
|Paper Sizes From 4A0 to A10|
|Size||Width x Height (mm)||Width x Height (in)|
|4A0||1682 x 2378 mm||66.2 x 93.6 in|
|2A0||1189 x 1682 mm||46.8 x 66.2 in|
|A0||841 x 1189 mm||33.1 x 46.8 in|
|A1||594 x 841 mm||23.4 x 33.1 in|
|A2||420 x 594 mm||16.5 x 23.4 in|
|A3||297 x 420 mm||11.7 x 16.5 in|
|A4||210 x 297 mm||8.3 x 11.7 in|
|A5||148 x 210 mm||5.8 x 8.3 in|
|A6||105 x 148 mm||4.1 x 5.8 in|
|A7||74 x 105 mm||2.9 x 4.1 in|
|A8||52 x 74 mm||2.0 x 2.9 in|
|A9||37 x 52 mm||1.5 x 2.0 in|
|A10||26 x 37 mm||1.0 x 1.5 in|
A Series Paper Chart
B Series Paper Chart
Paper Sheets Size Comparison
Some of the most commonly asked questions about paper sizes are asked about those paper sizes that are, or were, most often used in the office environment. These are the A4 paper size used internationally, Letter and Legal paper sizes in the US and the old imperial foolscap paper size that was used in the British Commonwealth prior to the introduction of the ISO 216 standard.
Letter at 279mm (11.0") is slightly smaller than A4 at 297mm (11.7"), both Legal at 356mm (14.0") and Foolscap at 330mm (13.0") are longer than A4 with Legal being the longest. Foolscap is the narrowest at 203mm (8.0"), followed by A4 at 210mm (8.3") and then Letter and Legal at 216mm (8.5").
The following comparison table gives the sizes in millimeters and inches of A4, Letter, Legal and Foolscap Folio paper together with the areas and aspect ratios for these types of paper.
|Size||Width x Height (mm)||Width x Height (in)||Area sq m||Area sq yd||Aspect Ratio|
|A4||210 x 297 mm||8.3 x 11.7 in||0.062 sq m||0.074 sq yd||1:1.4142|
|Letter||216 x 279 mm||8.5 x 11.0 in||0.060 sq m||0.072 sq yd||1:1.2941|
|Legal||216 x 356 mm||8.5 x 14.0 in||0.077 sq m||0.092 sq yd||1:1.6471|
|Foolscap||203 x 330 mm||8.0 x 13.0 in||0.067 sq m||0.080 sq yd||1:1.625|