< class="breadcumb-title text-anim" data-cue="slideInUp" data-delay="300">Digital Resolution Converter
Professional Digital Resolution Converter — DPI, PPI, DPCM & More | ASLI FORM

Basic Resolution Converter

Convert between DPI, PPI, DPCM, PPCM, DPMM and other basic resolution units with scientific precision.

Conversion Formula
1 DPI = 0.393701 DPCM

Common Conversions

Quick reference table
FromToResult

How to Use This Converter

Our digital resolution converter is engineered for speed, precision, and ease of use. Follow these steps to get accurate conversions instantly.

  • Select a Category Choose from 5 categories using the sidebar (desktop) or dropdown (mobile).
  • Choose Source Unit Pick the unit you want to convert from in the first dropdown.
  • Choose Target Unit Select the unit you want to convert to in the second dropdown.
  • Enter Value Type your number — the result appears instantly as you type.
  • Swap Units Click the swap button to instantly reverse the conversion direction.
  • View Formula The exact conversion formula is displayed below for verification.

Why Professionals Choose ASLI FORM

Built with precision engineering and premium design, our converter meets the demands of designers, printers, developers, and professionals worldwide.

  • Scientific Precision Results accurate to 10 significant digits using official conversion factors.
  • Instant Results Real-time conversion as you type — no buttons to click, no waiting.
  • Works Offline All calculations run locally in your browser. Perfect for field work.
  • Universal Compatibility From basic keypad phones to 4K displays — works on every device.
  • Zero Tracking No cookies, no analytics, no data collection. Your privacy is absolute.
  • Free Forever No subscriptions, no hidden fees, no usage limits, no advertisements.

Frequently Asked Questions

DPI (Dots Per Inch) refers to the number of ink dots a printer can place in one inch, used for print resolution. PPI (Pixels Per Inch) refers to the number of pixels in one inch of a digital image or display, used for screen resolution. While often used interchangeably, they measure different things: DPI is for physical output, PPI is for digital input. Numerically, 1 DPI = 1 PPI when converting between print and digital.
The standard DPI for print varies by use case:
  • Newspapers: 85-100 DPI
  • Magazines: 133-150 DPI
  • Photo prints: 240-300 DPI
  • Fine art prints: 600+ DPI
For most professional printing, 300 DPI is the gold standard.
Retina displays have pixel densities high enough that the human eye cannot distinguish individual pixels at normal viewing distance. Apple's Retina displays range from:
  • MacBook: 144-220 PPI
  • iMac: 218-220 PPI
  • iPhone: 326-476 PPI
  • iPad Pro: 264 PPI
Android equivalents include HDPI (240), XHDPI (320), XXHDPI (480), and XXXHDPI (640).
DPI and PPI are numerically equivalent when converting between print and digital. 1 DPI = 1 PPI in terms of measurement. However, they serve different purposes: DPI for printing, PPI for screens. To convert to metric units: multiply by 0.393701 to get DPCM or PPCM, or multiply by 0.0393701 to get DPMM or PPMM.
For 4K resolution (3840×2160 pixels) printing, you need at least 300 DPI for professional quality. This means your print size would be approximately 12.8×7.2 inches at 300 DPI. For larger prints, you can use 150-200 DPI as the viewing distance increases. For billboards and large format, 72-150 DPI is sufficient.
For web images, 72 PPI or 96 PPI is standard. However, with high-DPI displays (Retina, 4K monitors), it's recommended to use 2x or 3x resolution (144-288 PPI) for crisp images on modern screens. Always optimize file size for web performance using formats like WebP or AVIF.
Android uses density buckets to scale UI elements:
  • LDPI: ~120 DPI (0.75x)
  • MDPI: ~160 DPI (1x baseline)
  • HDPI: ~240 DPI (1.5x)
  • XHDPI: ~320 DPI (2x)
  • XXHDPI: ~480 DPI (3x)
  • XXXHDPI: ~640 DPI (4x)
To calculate PPI for any display, use the formula: PPI = √(width² + height²) / diagonal. For example, a 27-inch 4K monitor (3840×2160) has: PPI = √(3840² + 2160²) / 27 = √(14,745,600 + 4,665,600) / 27 = √19,411,200 / 27 = 4406.5 / 27 = 163 PPI.
DPCM (Dots Per Centimeter) is the metric equivalent of DPI. Since 1 inch = 2.54 cm, to convert DPI to DPCM, multiply by 0.393701 (or divide by 2.54). For example, 300 DPI = 300 × 0.393701 = 118.11 DPCM. DPCM is commonly used in European and Asian printing industries.
Recommended resolutions for social media:
  • Instagram Post: 1080×1080px (1:1) at 72 PPI
  • Instagram Story: 1080×1920px (9:16) at 72 PPI
  • Facebook Cover: 1640×624px at 72 PPI
  • Twitter Header: 1500×500px at 72 PPI
  • YouTube Thumbnail: 1280×720px at 72 PPI
  • LinkedIn Banner: 1584×396px at 72 PPI
Yes, the ASLI FORM Digital Resolution Converter is 100% free forever. There are no registration requirements, no usage limits, no subscription fees, and no hidden charges. We do not display advertisements and we do not collect any personal data.
Yes. Once the page loads, all calculations happen locally in your browser. There is no server-side processing, no API calls, and no internet dependency for conversions. This makes the tool perfect for field work, remote locations, and anywhere connectivity is limited.

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