4.5 cm in Pixels
4.5 cm = 170 px at 96 DPI or 531 px at 300 DPI. This is the height of a standard 3.5 x 4.5 cm passport photo. If you need the full photo, the complete dimensions are 413 x 531 px at 300 DPI.
4.5 cm at 96 DPI
170 px
4.5 cm at 300 DPI
531 px
3.5 x 4.5 cm photo
413 x 531 px at 300 DPI
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This page answers the height-only query. If you need the width too, visit the full 3.5x4.5 cm photo maker.
Quick conversion table
Rounded to the nearest pixel. 4.5 cm is the height of a standard passport photo (3.5 x 4.5 cm).
| DPI | 4.5 cm height | 3.5 x 4.5 cm photo |
|---|---|---|
| 96 DPI | 170 px | 132 x 170 px |
| 150 DPI | 266 px | 207 x 266 px |
| 200 DPI | 354 px | 276 x 354 px |
| 300 DPI | 531 px | 413 x 531 px |
Quick answers
4.5 cm at 96 DPI
170 px
4.5 cm at 300 DPI
531 px
3.5 x 4.5 cm at 96 DPI
132 x 170 px
3.5 x 4.5 cm at 300 DPI
413 x 531 px
How to use the answer
Check if you need just the height
If the form only says 4.5 cm, use the single-dimension answer. Don't assume it means a full passport photo.
Pair with the width when needed
A full 3.5x4.5 cm passport photo is 413x531 px at 300 DPI. Use both dimensions only when the requirement is a complete photo.
Open the tool for the actual file
Use the browser-based cropper when you need a real JPG output - not just the math.
Frequently asked questions
How many pixels is 4.5 cm?
4.5 cm is 170 px at 96 DPI, 266 px at 150 DPI, 354 px at 200 DPI, and 531 px at 300 DPI.
Is 4.5 cm the height of a passport photo?
Yes. The standard Indian passport photo is 3.5 cm wide x 4.5 cm tall. At 300 DPI, 4.5 cm converts to 531 pixels in height.
What DPI should I use for the 4.5 cm dimension?
Use 300 DPI for government exam uploads and print labs. Use 96 DPI only for screen-only applications where DPI is not specified.
Is 45 mm the same as 4.5 cm?
Yes. 45 mm and 4.5 cm describe the same physical measurement. The pixel conversions are identical.
Bharat Kumar G.verified
Technical SEO & Document Processing Expert
Bharat is the founder of ReadyToSubmit. With years of experience in technical web development, he builds privacy-first, client-side tools to help Indian government exam aspirants format their applications accurately and securely without server uploads.
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