/Workbench/Measure & Calculate

Unit Converter for Designers

100% Free Utility

Bi-directional conversion between px, pt, mm, cm, and inches with DPI awareness.

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Live Bi-Directional Conversion300 DPI Target
Pixels (px)
1181.1
Millimeters (mm)
100
Centimeters (cm)
10
Inches (in)
3.937
Points (pt)
283.46
Picas (pica)
23.62
REM (rem)
73.819
EM (em)
73.819

Conversion Math Formula

Inches (3.937) × DPI (300) = 1181.1 px

Workflow Guide

How to use Unit Converter for Designers in 3 steps

01

Enter Length or Type Value

Type any numeric value in pixels, millimeters, inches, points, or picas.

02

Set Target DPI / PPI

Adjust target resolution (72 for screen, 150 for draft, 300 for commercial print).

03

Copy Exact Conversions

Instant bi-directional mathematical conversions across all design systems.

Production Questions

Frequently Asked Questions

Pixels are relative digital display units with no fixed physical size until a density (DPI/PPI) is defined. 300 DPI contains 300/25.4 ≈ 11.81 pixels per millimeter.