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Photo Print Size Calculator

Unit Converters

Pixels and dpi to printable inches and cm

Quick Answer

Photo Print Size Calculator: Pixels and dpi to printable inches and cm. Photo Print Size Calculator uses standard unit conversion formulas to compute accurate results instantly.

Photo pixels

px
px
dpi
Printable size at this dpi13.33 × 10.00 in · 33.9 × 25.4 cm
Largest standard print12-inch

Calculation

  1. 1Width = 4000 ÷ 300 = 13.33 in
  2. 2Height = 3000 ÷ 300 = 10.00 in
  3. 3= 33.9 × 25.4 cm (1 in = 2.54 cm)
  4. 4Fits 12-inch (10×12 in needs 3000×3600 px)
  • 300 dpi is the print-industry anchor — at 25-30 cm viewing distance individual pixels vanish.
  • Upscaling below-spec pixels only makes blur bigger; shoot higher resolution instead.
  • 6-inch (4R) is 3:2 while phones shoot 4:3 or 16:9 — expect edge cropping.
  • Bulk online printing costs far less per print than one-off kiosks.
  • Glossy paper pops color; matte suits texture and long-term display.
  • ID photos have fixed specs — use the dedicated ID photo calculator.

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How to Use

  1. Pick units: switch source and target units in the Photo Print Size Calculator.
  2. Enter a value: results sync both ways instantly — no convert button needed.
  3. Use the reference table: common conversions are listed for instant lookup.
  4. Copy the result: copy the converted value with its unit.

Key Points

  • Photo Print Size Calculator is a free online unit conversion tool — open and use, no sign-up.
  • All calculations run locally in your browser; your data never leaves the device.
  • Key capability: Pixels and dpi to printable inches and cm.
  • Results come with formulas and reference tables so you can verify every number.

Formula & How It Works

Photo Print Size Calculator formula

Photo Print Size Calculator uses standard unit conversion formulas to compute accurate results instantly.

FAQ

How do I use the Photo Print Size Calculator?
Open the page and fill in the input fields — results update automatically. Pixels and dpi to printable inches and cm.
Are the results accurate?
Yes. Standard formulas and conversion factors are used and verified.
Is it free? Do I need to sign up?
Completely free. No registration, login or download required.
Does it work on mobile?
Yes. The responsive design works on phones, tablets and desktops.
Is my data saved?
No. Everything runs locally in your browser.

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Source & Updates

Based on SI conversion factors and international standards. Last updated: 2025-07

Authoritative sources:

Last updated:

Formulas and content on this page are reviewed by the YiJianSuan team. For reference only — official sources prevail.

Maintained and periodically reviewed by the YiJianSuan editorial team — review process in ourEditorial Policy.

Cite this page: YiJianSuan. Photo Print Size Calculator[EB/OL]. https://www.yijiansuan.com/en/c/convert/photo-print

Results provided by this tool are for reference only and do not constitute professional advice.