Pixel per inch to Pixel per centimeter Converter
免费图像分辨率转换器, 即时换算 DPI、PPI、每厘米点数和每毫米像素
Pixel per inch
- Symbol
- PPI
- System
- Metric/Imperial
- Dimension
- Various
Pixel per centimeter
- Symbol
- px/cm
- System
- Metric/Imperial
- Dimension
- Various
Quick Reference Table
| Pixel per inch | Pixel per centimeter | Pixel per centimeter | Pixel per inch |
|---|---|---|---|
| 1 | 0.3937007874 | 1 | 2.54 |
| 2 | 0.7874015748 | 2 | 5.08 |
| 3 | 1.1811023622 | 3 | 7.62 |
| 5 | 1.968503937 | 5 | 12.7 |
| 10 | 3.937007874 | 10 | 25.4 |
| 25 | 9.842519685 | 25 | 63.5 |
| 50 | 19.6850393701 | 50 | 127 |
| 100 | 39.3700787402 | 100 | 254 |
| 500 | 196.8503937008 | 500 | 1270 |
| 1000 | 393.7007874016 | 1000 | 2540 |
Conversion Formula
Pixel per centimeter = Pixel per inch × 0.3937007874
Pixel per inch = Pixel per centimeter × 2.54
Factors are from BIPM SI brochure and NIST SP 811, stored unrounded and computed via a base unit. Reverse factor is 1 ÷ 0.3937007874.
How to convert Pixel per inch to Pixel per centimeter
Multiply the value in pixel per inch by 0.3937007874 to get pixel per centimeter. For example, 5 Pixel per inch = 1.968503937 Pixel per centimeter. All results in the image resolution converter update instantly as you type, so you can see every unit at once without manual math.
Common mistakes
Do not round the factor to 0.39 too early — keep full precision until the final display. For image resolution, always verify critical calculations (medicine, engineering) with a second source.
FAQ
- How many Pixel per centimeter in 1 Pixel per inch?
- 1 Pixel per inch = 0.3937007874 Pixel per centimeter.
- How many Pixel per inch in 1 Pixel per centimeter?
- 1 Pixel per centimeter = 2.54 Pixel per inch.
- What is the source?
- BIPM/NIST via OmniConverter base-unit engine. Source table and formula above are exact.
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