A4
210 × 297 mm; 8.27 × 11.69 in in the current chart. Use it when the document, destination, or printer explicitly calls for A4.
Paper Size Chart for ISO and North American Formats
Printable reference + builder
Use this paper size chart to compare physical sheet dimensions before choosing a printer setting, document template, envelope, poster format, or drawing sheet. The current dataset lists A4 as 210 × 297 mm (8.27 × 11.69 in), US Letter as 216 × 279 mm (8.5 × 10.98 in), and US Legal as 216 × 356 mm (8.5 × 14.02 in). Inch values are calculated from the dataset’s rounded millimeter values using 25.4 mm per inch, then rounded to two decimals.
Start with the family required by the task. ISO A, B, and C; North American common sizes; ANSI engineering sheets; and Arch drawing sheets are separate systems, not one worldwide sequence. A nearby dimension is not permission to substitute. The printer manual, application page setup, drawing contract, mailing specification, or project standard controls when it names a format. Pixel dimensions are a second decision because they depend on DPI, image orientation, bleed, and the required final output.
ISO A/B/C
US Letter & Legal
Pixels at 300 DPI
Printable reference
Quick answer
Paper size chart quick answers
US Letter
216 × 279 mm; 8.5 × 10.98 in after conversion from the chart’s rounded millimeter row. It is the common office choice in many North American workflows.
US Legal
216 × 356 mm; 8.5 × 14.02 in by the same method. Select it only when the document and printer support the longer sheet.
These are physical dimensions, not printable-area promises. A printer can reserve margins, rotate output, scale to fit, or reject a loaded size. Check the device tray, driver, application page setup, orientation, and scaling before a final run. If a supplied template or client specification gives dimensions that differ from this reference, use the supplied specification and report the mismatch rather than silently resizing the work.
Build your chart
Build a printable paper dimension reference
Use the paper size chart builder to choose the size families and columns needed for the job. The current controls can include ISO A, ISO B, ISO C, US Common, ANSI Engineering, Arch Architecture, and Photo Sizes. Millimeters and inches can be shown together. The optional pixel column is calculated at 300 DPI by the chart; it does not make 300 DPI correct for every press, screen, scanner, or image workflow.
The Office & Home preset combines ISO A and US Common. Creative & Print adds ISO B, photo sizes, and the 300-DPI pixel column. Architecture uses ANSI and Arch rows with an inch-first blueprint layout. These presets organize the current dataset; they do not choose the governing format for a project.
Browser Print remains free and does not use the daily download quota. The Free plan allows one PDF or PNG download per day. The current Pricing page describes Pro downloads as Unlimited. That is the current plan wording, not a promise of unlimited API access, automated bulk exports, unrestricted redistribution, or a permanent plan or price. Content use and redistribution remain governed by the Terms, and export does not certify dimensional compliance.
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Office & Home • A4 (portrait)
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Paper Size Chart
Standard Dimensions Reference Guide
| System | Name | Size (mm) | Size (inches) | Notes |
|---|---|---|---|---|
| ISO A Series | A0 | 841 × 1189 | 33.11" × 46.81" | - |
| ISO A Series | A1 | 594 × 841 | 23.39" × 33.11" | - |
| ISO A Series | A2 | 420 × 594 | 16.54" × 23.39" | - |
| ISO A Series | A3 | 297 × 420 | 11.69" × 16.54" | - |
| ISO A Series | A4 | 210 × 297 | 8.27" × 11.69" | Standard International Paper |
| ISO A Series | A5 | 148 × 210 | 5.83" × 8.27" | - |
| ISO A Series | A6 | 105 × 148 | 4.13" × 5.83" | - |
| ISO A Series | A7 | 74 × 105 | 2.91" × 4.13" | - |
| ISO A Series | A8 | 52 × 74 | 2.05" × 2.91" | Business Card Size |
| ISO A Series | A9 | 37 × 52 | 1.46" × 2.05" | - |
| ISO A Series | A10 | 26 × 37 | 1.02" × 1.46" | - |
| US Common | Letter | 216 × 279 | 8.5" × 10.98" | Standard US Paper |
| US Common | Legal | 216 × 356 | 8.5" × 14.02" | - |
| US Common | Tabloid | 279 × 432 | 10.98" × 17.01" | - |
| US Common | Ledger | 432 × 279 | 17.01" × 10.98" | - |
| US Common | Junior Legal | 127 × 203 | 5" × 7.99" | - |
| US Common | Half Letter | 140 × 216 | 5.51" × 8.5" | - |
| US Common | Gov. Letter | 203 × 267 | 7.99" × 10.51" | - |
| US Common | Gov. Legal | 216 × 330 | 8.5" × 12.99" | - |
1 inch = 25.4 mm
File Details
Sizes
19
Format
A4 (portrait)
PDF SIZE
≈0KB
Quality
300 DPI
Choose a paper size by task
Office documents
Match the document template and receiving workflow first. If collaborators expect A4, keep A4 through editing and output. If the workflow names Letter or Legal, use that named format. Converting late can move page breaks, tables, signatures, and form fields.
Commercial print and handouts
Ask the printer for finished size, bleed, safe area, color setup, orientation, and accepted file format. The sheet name alone does not define trim or printable area.
Posters and books
ISO B rows can help compare larger publication formats, but the publisher or print provider controls the actual finished size. Do not infer a press sheet from a finished page.
Envelopes and folded mail
Start with the unfolded or folded insert dimensions, then confirm the envelope’s internal clearance, seam, flap, and postal requirements. A dimensional match is only the first check.
Architecture and engineering
Use the drawing contract or office standard to choose ANSI, Arch, or another specified family. Confirm title-block template, plotter roll or tray, scale, and revision requirements before printing.
How the paper-size systems differ
ISO A-series sheets retain an aspect ratio of 1:√2 in the underlying system, so halving a larger sheet parallel to its short side produces the next smaller nominal format with the same proportion, subject to standardized rounding. This explains the A0, A1, A2 progression. It does not make every document automatically resize without layout changes.
ISO B and C serve different roles. The current chart presents B rows as a separate size family and C rows as envelope references. Do not treat a B or C label as an alternate name for an A sheet.
North American Letter, Legal, Tabloid, and Ledger rows do not follow the ISO A-series progression. ANSI engineering rows and Arch drawing rows are also separate technical families. Similar-looking sizes may have different dimensions, title-block expectations, and equipment support.
This paper size chart keeps each family labeled so the user can compare rather than merge them. Complete edition-level source records are not available for every row. Treat the dimensions as reference values and use the named standard, printer documentation, drawing contract, publisher template, or supplier specification when it controls the job.
Convert physical paper dimensions to pixels
Paper size chart pixels are calculated only after a physical size and resolution are chosen. Convert millimeters to inches with inches = millimeters ÷ 25.4. Then calculate pixels = inches × DPI for width and height. Round according to the image or print workflow, not by copying an unrelated preset.
For example, the chart’s A4 row uses 210 × 297 mm. At 300 DPI, it calculates 2,480 × 3,508 pixels after rounding. This is a reproducible 300-DPI reference, not a universal file requirement. A 150-DPI draft, 300-DPI print image, and 600-DPI monochrome scan produce different pixel dimensions for the same physical sheet.
Bleed, crop marks, printer margins, raster resampling, and orientation can change the required canvas. A design delivered at 300 DPI may still fail if its trim size, bleed, color space, compression, or effective placed-image resolution is wrong. Use the print provider’s specification as the controlling source. Keep the physical dimensions, target DPI, rounding rule, and bleed assumption beside any pixel number so another person can reproduce it.
Check envelopes, folds, and printer setup
For an ISO workflow, the current dataset includes C4 at 229 × 324 mm and C5 at 162 × 229 mm. Those rows can support a first dimensional comparison with A-series inserts. They do not prove that a specific folded packet will feed, seal, or meet mailing rules. Paper weight, number of sheets, fold accuracy, window position, seam construction, and internal clearance all matter.
For North American mail, use the exact envelope product specification rather than assuming a familiar number or marketing label is identical across suppliers. Confirm whether the dimensions are internal or external and whether the insert will be folded.
Before printing, set the application page size and orientation, load the matching tray, and inspect scaling. Fit, shrink, and borderless options can change output dimensions. Print a measured test when physical scale matters. For drawings, labels, forms, or templates with a scale bar, compare the printed scale against a ruler and investigate any mismatch.
A paper size chart helps identify the candidate format. It cannot inspect the printer path, driver, consumables, media stiffness, or finishing process.
A repeatable paper-size workflow
1. Read the requirement. Record the named family, size, orientation, finished dimensions, bleed, and output method. If the requirement only says standard paper, ask which standard rather than guessing.
2. Compare dimensions. Use the paper size chart to check millimeters and inches without collapsing ISO, North American, ANSI, or Arch labels into one system.
3. Configure the file. Set page size before layout work. For raster content, calculate pixels from the required physical size and DPI. Preserve the calculation inputs with the file.
4. Check equipment. Confirm tray or roll support, printable area, duplex behavior, scaling defaults, and media limits in the printer or plotter documentation.
5. Test the output. Print one sample, measure any scale-critical feature, inspect crop and fold positions, and confirm that the receiving workflow accepts the file.
6. Record the choice. Note the selected format and source in the project notes so another editor does not switch from A4 to Letter or from ANSI to Arch during a later revision.
This process favors the project specification over a generic lookup whenever the two disagree.
Method & limits
Methodology, source limits, and related references
This paper size chart stores dimensions in millimeters, calculates inches as millimeters ÷ 25.4 rounded to two decimals, and calculates optional pixel values as round(millimeters ÷ 25.4 × DPI). The optional pixel column currently uses 300 DPI. Keep the physical size, DPI, orientation, bleed, and rounding rule with any exported pixel value so another person can reproduce it.
ISO 216:2007 is an external reference for the A/B family concept and 1:√2 relationship. Complete edition-level source records are not available for every ISO, US Common, ANSI, Arch, photo, or envelope row. Treat all dimensions as reference values until checked against the applicable standard, printer documentation, drawing contract, publisher template, or supplier specification.
Use the related conversion charts below to move between millimeters, centimeters, and inches. They convert measurements; they do not select a paper standard.
Related charts
MM → InchesPro template
| Millimeters | Decimal (in) | Fraction (in) |
|---|---|---|
| 0.5 | 0.020 | 0 |
| 1 | 0.039 | 1/16 |
| 6.35 | 0.250 | 1/4 |
| 12.7 | 0.500 | 1/2 |
| 19 | 0.748 | 3/4 |
| 25.4 | 1.000 | 1 |
| 38.1 | 1.500 | 1 1/2 |
| 50.8 | 2.000 | 2 |
| 76.2 | 3.000 | 3 |
| 101.6 | 4.000 | 4 |
Inches → MMWorkshop preset
| Inches (fraction) | Inches (decimal) | Millimeters | Centimeters |
|---|---|---|---|
| 1/4" | 0.250 | 6.35 | 0.64 |
| 1/2" | 0.500 | 12.70 | 1.27 |
| 1" | 1.000 | 25.40 | 2.54 |
| 1 1/2" | 1.500 | 38.10 | 3.81 |
| 2" | 2.000 | 50.80 | 5.08 |
| 2 1/2" | 2.500 | 63.50 | 6.35 |
| 3" | 3.000 | 76.20 | 7.62 |
| 4" | 4.000 | 101.60 | 10.16 |
| 5" | 5.000 | 127.00 | 12.70 |
| 6" | 6.000 | 152.40 | 15.24 |
CM → InchesSizing helper
| Centimeters | Meters | Decimal (in) | Fraction (in) | ft'-in |
|---|---|---|---|---|
| 5 | 0.05 | 1.97 | 1 15/16" | 0'2" |
| 10 | 0.10 | 3.94 | 3 15/16" | 0'4" |
| 20 | 0.20 | 7.87 | 7 7/8" | 0'8" |
| 30 | 0.30 | 11.81 | 11 13/16" | 1'0" |
| 50 | 0.50 | 19.69 | 19 11/16" | 1'8" |
| 70 | 0.70 | 27.56 | 27 9/16" | 2'4" |
| 90 | 0.90 | 35.43 | 35 7/16" | 2'11" |
| 100 | 1.00 | 39.37 | 39 3/8" | 3'3" |
| 130 | 1.30 | 51.18 | 51 3/16" | 4'3" |
| 180 | 1.80 | 70.87 | 70 7/8" | 5'11" |
Inches → CMModern template
| Inches | ft'-in | Centimeters | Meters |
|---|---|---|---|
| 1 | 1" | 2.5 | 0.03 |
| 6 | 6" | 15.2 | 0.15 |
| 12 | 1' 0" | 30.5 | 0.30 |
| 24 | 2' 0" | 61.0 | 0.61 |
| 30 | 2' 6" | 76.2 | 0.76 |
| 36 | 3' 0" | 91.4 | 0.91 |
| 48 | 4' 0" | 121.9 | 1.22 |
| 60 | 5' 0" | 152.4 | 1.52 |
| 63 | 5' 3" | 160.0 | 1.60 |
| 72 | 6' 0" | 182.9 | 1.83 |
Paper size FAQ
What size is A4 paper in millimeters and inches?
The current chart dataset lists A4 as 210 × 297 mm and derives 8.27 × 11.69 inches by dividing millimeters by 25.4 and rounding to two decimals. Confirm the printer, template, or project specification before output.
What is the difference between A4 and US Letter?
In the current dataset, A4 is 210 × 297 mm, while Letter is 216 × 279 mm. A4 is narrower and taller. They are separate formats, so scaling or reflow may occur when a document and printer use different settings.
What size is US Legal paper?
The current chart dataset lists Legal as 216 × 356 mm and derives 8.5 × 14.02 inches from those rounded millimeter values. Check the application page setup and printer tray because a device may label or store the format differently.
Are ISO, North American, ANSI, and Arch sizes interchangeable?
No. They are separate size families used for different regional and technical workflows. Similar dimensions do not make two formats interchangeable. Use the family named by the document, printer, drawing contract, or project specification.
How do I calculate paper size in pixels?
Choose the physical width and height in inches, then multiply each by the required DPI and apply the project’s rounding rule. Pixel dimensions depend on DPI; a physical paper name alone does not define one universal pixel size.
Can this chart confirm printer or envelope compatibility?
No. It is a dimensional reference. Feed path, margins, duplex support, printable area, fold pattern, insert thickness, envelope construction, and software settings can change compatibility. Confirm the printer manual, envelope specification, and project requirements.