US Letter Paper Size Dimensions
Standard North American paper format for business documentation, academic printing, and desktop publishing.
Actual Size Screen Preview
Interactive Inch ToolMake sure your screen is calibrated to view true-to-scale imperial inches below.
US Letter Dimensions in Pixels (DPI Matrix)
Use these pixel dimensions when setting up digital canvases in design programs like Figma, Photoshop, or InDesign:
| Resolution (DPI / PPI) | Pixel Dimensions (W × H) | Megapixels | Application |
|---|---|---|---|
| 72 DPI | 612 × 792 px | 0.48 MP | Low-resolution web preview, digital proof |
| 96 DPI | 816 × 1056 px | 0.86 MP | Standard browser CSS display |
| 150 DPI | 1275 × 1650 px | 2.10 MP | Office laser and inkjet draft prints |
| 300 DPI | 2550 × 3300 px | 8.41 MP | Commercial printing, brochures, publications |
| 600 DPI | 5100 × 6600 px | 33.6 MP | High-resolution fine art and legal archival |
US Letter vs. International A4
- Width: US Letter is 5.9 mm (0.23 in) wider than A4 (215.9 mm vs 210.0 mm).
- Height: US Letter is 17.6 mm (0.69 in) shorter than A4 (279.4 mm vs 297.0 mm).
- Geometric Scaling: Unlike A4 (which preserves proportions when folded in half), folding US Letter produces a sheet (5.5 × 8.5 in) with an aspect ratio of 1.545, altering the page shape.
Frequently Asked Questions
What are the dimensions of US Letter paper in inches, mm, and cm?
Standard US Letter paper measures 8.5 × 11.0 inches, 215.9 × 279.4 millimeters, or 21.59 × 27.94 centimeters.
How many pixels is US Letter paper at 300 DPI?
At 300 DPI (high-resolution print quality), US Letter paper is 2550 × 3300 pixels. At 96 DPI (standard CSS web resolution), it measures 816 × 1056 pixels.
Is US Letter the same as ANSI A?
Yes. In the American National Standards Institute (ANSI) engineering paper classification system, US Letter format is designated as ANSI A.
Can I use a sheet of US Letter paper to calibrate my screen ruler?
Yes. Hold an 8.5 x 11 inch sheet against your monitor. The short edge should align with 8.5 inches on a properly calibrated inch screen ruler.