When should I convert px to sp?

Convert px to sp when you inspect screenshots, redlines, or dense-device exports and want the original Android text token behind the rendered size.

Does font scale affect px to sp conversion?

Yes. The same rendered pixel size can map to a different sp value depending on the assumed accessibility font scale.

Android typography reverse calculator

PX to SP Converter

Turn measured text pixels back into Android sp values so screenshots, QA notes, and design redlines can become real typography tokens again.

Android Unit Tool

PX to SP Converter

Convert measured text pixels back into Android sp values, taking both display density and accessibility font scaling into account.

px valueDPI

Android density presets

Font scale1x

Use this to simulate Android accessibility font scaling.

Converted value

32sp

32px / ((160/160) x 1) = 32sp

Active factor

Pixel multiplier against the mdpi baseline.

Current target

160dpi

Useful for Android device and asset density checks.

Quick reference table

Common values converted using your active DPI.

Live update

px	sp
4px	4sp
8px	8sp
12px	12sp
16px	16sp
20px	20sp
24px	24sp
32px	32sp
44px	44sp
48px	48sp
64px	64sp

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Useful for QA

If a screenshot review tells you a heading renders at 54px on a specific device, this tool helps you back into the underlying sp value instead of guessing.

Mind accessibility settings

The same UI can render larger text when accessibility font scaling is enabled, so treat font scale as part of the conversion, not an afterthought.