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Units & converters

Typography unit converter

Convert type and layout dimensions between DTP points, picas, CSS pixels, millimetres, centimetres and inches.

Free & no registration Calculated in your browser
01

Your inputs

The starting values are an example.

Decimals: 12.5 · Thousands: 1,234.56. Follow the field instructions for lists.

02

Your result

Enter your values and select Calculate.

Your calculation will appear here.

Your result will include the relevant values and units.

Understand the calculation

Formula and example

How it is calculated

Converted value = original value × source factor / target factor

Worked example

12 pt (DTP/CSS) = 4.233333333 mm.

Things to check

  • The CSS relationships are 1 inch = 96 CSS pixels = 72 DTP points. A CSS pixel does not correspond to a fixed number of physical display pixels.
  • Rounding is applied only to displayed results. Very small or very large values may appear in scientific notation.

Sources and references