本文提供了一张详细的单位转换表格，涵盖了像素、em、百分比、点等常见单位之间的换算关系，便于网页设计与开发人员快速查找和应用。
1in = 2.54cm = 25.4 mm = 72pt = 6pc ；
- PX to EM:Example: 12px / 16px = .75em
- PX to %:Example: 12px / 16px * 100 = 75%
- PX to PT:Example: 16px * 72 (72 points = 1 inch) / 96 (96 pixels per inch in Windows, 72 in Mac) = 12pt
- EM to PX:Example: .75em * 16px = 12px
- EM to %:Example: .75em * 100 = 75%
- % to PX:Example: 75 * 16px / 100 = 12px
- % to EM:Example: 75 / 100 = .75em
- PT to PX:Example: 12pt * 96ppi / 72ppi = 16px
| Pixels | EMs | Percent | Points |
|---|---|---|---|
| 6px | 0.375em | 37.5% | 5pt |
| 7px | 0.438em | 43.8% | 5pt |
| 8px | 0.5em | 50% | 6pt |
| 9px | 0.563em | 56.3% | 7pt |
| 10px | 0.625em | 62.5% | 8pt |
| 11px | 0.688em | 68.8% | 8pt |
| 12px | 0.75em | 75% | 9pt |
| 13px | 0.813em | 81.3% | 10pt |
| 14px | 0.875em | 87.5% | 11pt |
| 15px | 0.938em | 93.8% | 11pt |
| 16px | 1em | 100% | 12pt |
| 17px | 1.063em | 106.3% | 13pt |
| 18px | 1.125em | 112.5% | 14pt |
| 19px | 1.188em | 118.8% | 14pt |
| 20px | 1.25em | 125% | 15pt |
| 21px | 1.313em | 131.3% | 16pt |
| 22px | 1.375em | 137.5% | 17pt |
| 23px | 1.438em | 143.8% | 17pt |
| 24px | 1.5em | 150% | 18pt |
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