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ID Photo Size Calculator

Lifestyle Tools

12 specs, DPI pixel conversion

Quick Answer

ID Photo Size Calculator: 12 specs, DPI pixel conversion. ID Photo Size Calculator uses standard everyday life formulas to compute accurate results instantly.

Photo spec

Print paper

dpi
mm
1-inch pixel size @ 300 DPI
295 × 413 px
25 × 35 mm · Resume, student ID
Per sheet9 photos
Layout3 × 3
Paper5" paper (127×89)

Calculation steps

  1. 1Pixels = mm ÷ 25.4 × DPI: 25÷25.4×300 = 295 px, 35÷25.4×300 = 413 px
  2. 2Layout on 5" paper (127×89): 3 cols × 3 rows = 9 photos with 2mm gaps
  3. 3Print at the same DPI the shop uses — mismatch causes size errors. 300 DPI is the standard for photo labs.

All specs on this paper

SpecSize (mm)Per sheet
1-inch25×359
Small 1-inch22×3210
Large 1-inch33×484
2-inch35×494
Small 2-inch35×454
US Visa51×512
Japan Visa45×452
Driver license22×3210
Social security26×329
Background rules: white for ID/passport/driver license, blue for resume/education, red for marriage registration & insurance in some regions. Head height should occupy ~2/3 of photo height; no hats, even lighting, neutral expression.

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How to Use

  1. Enter scenario values: fill real-life numbers into the ID Photo Size Calculator (defaults work for a quick try).
  2. Instant results: everything computes live, no button needed.
  3. Read the advice: results come with practical tips, reference standards and pitfalls.
  4. Compare options: adjust parameters to compare choices side by side.

Key Points

  • ID Photo Size Calculator is a free online everyday life tool — open and use, no sign-up.
  • All calculations run locally in your browser; your data never leaves the device.
  • Key capability: 12 specs, DPI pixel conversion.
  • Results come with formulas and reference tables so you can verify every number.

Formula & How It Works

ID Photo Size Calculator formula

ID Photo Size Calculator uses standard everyday life formulas to compute accurate results instantly.

FAQ

How do I use the ID Photo Size Calculator?
Open the page and fill in the input fields — results update automatically. 12 specs, DPI pixel conversion.
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 common formulas and industry conventions. Last updated: 2025-07

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. ID Photo Size Calculator[EB/OL]. https://www.yijiansuan.com/en/c/life/id-photo

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