ANSI C Paper Size
ANSI C measures 17 × 22 inches (431.8 × 558.8 mm). It is a large-format drawing size, an ANSI engineering size.
| Inches | 17 × 22 in |
|---|---|
| Millimetres | 431.8 × 558.8 mm |
| Centimetres | 43.2 × 55.9 cm |
| Aspect ratio (long ÷ short) | 1.294 |
| Area | 0.2413 m² |
| Resolution | Width × height | Typical use |
|---|---|---|
| 72 PPI | 1224 × 1584 px | Screen design (PDF points) |
| 96 PPI | 1632 × 2112 px | Web / CSS pixels |
| 150 PPI | 2550 × 3300 px | Draft print quality |
| 300 PPI | 5100 × 6600 px | High-quality print |
| Print onto | Scale |
|---|---|
| A5 paper | 34.3% |
| A4 paper | 48.6% |
| A3 paper | 68.8% |
| Letter paper | 50.0% |
| Legal paper | 50.0% |
Where you will see ANSI C
The ANSI series starts at ANSI A, which is the same sheet as Letter, and ANSI B, which is the same as Tabloid. Each step up roughly doubles the area, so ANSI C is used for large engineering drawings, plans and plots.
Printing it on smaller paper
Large-format sheets are usually plotted on wide-format printers. If you only need a reference copy, the table above shows the scale at which a ANSI C page fits on A3, A4 or Letter paper. Text and fine lines can become hard to read at small scales, so check a test print.
Frequently asked questions
What are the dimensions of ANSI C?
ANSI C is 17 × 22 inches (431.8 × 558.8 mm).
How big is ANSI C compared with Letter?
ANSI C has 4.0 times the area of Letter.
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Last updated: 2026-10-03