C1 Paper Size
648 x 917 mm
What is C1?
A C1 sheet of paper measures 648 × 917 mm, which equals 25.51 × 36.1 inches or 7654 × 10831 pixels at 300 DPI.
C1 — All Units
| Units | Width × Height |
|---|---|
| Metric | |
| mm — Millimeter | 648 × 917 |
| cm — Centimeter | 64.8 × 91.7 |
| dm — Decimeter | 6.48 × 9.17 |
| m — Meter | 0.648 × 0.917 |
| km — Kilometer | 0.000648 × 0.000917 |
| µm — Micrometer | 648,000 × 917,000 |
| nm — Nanometer | 648,000,000 × 917,000,000 |
| Imperial | |
| in — Inch | 25.51 × 36.1 |
| ft — Foot | 2.126 × 3.009 |
| yd — Yard | 0.7087 × 1.0028 |
| mi — Mile | 0.000403 × 0.00057 |
| nmi — Nautical Mile | 0.00035 × 0.000495 |
| hand — Hand | 6.378 × 9.026 |
| bc — Barleycorn | 76.5354 × 108.307 |
| Typography | |
| pt — Point (PostScript) | 1,836.9 × 2,599.4 |
| pc — Pica (PostScript) | 153.071 × 216.614 |
| twip — Twip | 36,737.01 × 51,987.4 |
| Didot pt — Point (Didot) | 1,723.535 × 2,439.015 |
| Didot pc — Pica (Didot) | 143.628 × 203.251 |
| cicero — Cicero | 143.628 × 203.251 |
| Digital / Pixel | |
| css px — CSS Pixel (96 PPI) | 2,449.1 × 3,465.8 |
| px@72 — Pixel @ 72 PPI | 1,836.9 × 2,599.4 |
| px@96 — Pixel @ 96 PPI | 2,449.1 × 3,465.8 |
| px@150 — Pixel @ 150 PPI | 3,826.8 × 5,415.4 |
| px@300 — Pixel @ 300 PPI (print) | 7,653.5 × 10,830.7 |
| px@600 — Pixel @ 600 PPI (high-res) | 15,307.1 × 21,661.4 |
| px@1200 — Pixel @ 1200 PPI (ultra) | 30,614.2 × 43,322.8 |
| Relative Typography | |
| em — Em (12pt base) | 153.071 × 216.614 |
| en — En (12pt base) | 306.142 × 433.228 |
| Area | 594216 mm² |
| Aspect ratio | 1 : 1.4151 |
US Envelope Paper Sizes — View all →
Frequently Asked Questions
What is C1 in inches?
C1 = 25.51 × 36.1 in
What is C1 in millimeters?
C1 = 648 × 917 mm
What is C1 in centimeters?
C1 = 64.8 × 91.7 cm
What is C1 in pixels at 300 DPI?
C1 = 7654 × 10831 px @300 DPI