What is the difference between sp and dp?

dp is mainly for layout spacing and component sizing, while sp is meant for text because it also respects the user's preferred font scale.

Why does sp to px need font scale?

Android text can grow or shrink based on accessibility settings, so the same sp value may produce different pixel values depending on font scale.

Android typography · Accessibility-aware

SP to PX Converter

Convert Android text sizes into pixels and see how density plus accessibility font scaling changes the final rendered value.

Android Unit Tool

SP to PX Converter

Convert Android scale-independent text sizes into pixels while factoring in both screen density and accessibility font scaling.

sp valueDPI

Android density presets

Font scale1x

Use this to simulate Android accessibility font scaling.

Converted value

16px

16sp x (160/160) x 1 = 16px

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

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

More Mobile Dev Tools

DP to PX Converter

Convert Android density-independent pixels into device pixels.

PX to DP Converter

Turn raw pixel measurements back into Android dp units.

PX to SP Converter

Reverse Android text pixels into scale-independent units.

iOS Points to Pixels

Convert iOS points into @1x, @2x, and @3x asset pixels.

Why sp exists

Android uses sp for text so the UI can honor a person's font-size preference. That makes sp the better choice for labels, body copy, and headings when accessibility matters.

Great for handoff

Designers and developers can use this tool to compare typography specs across devices, validate screenshots, and discuss readable minimums before implementation.