Typography Measurements

CSS reference pixel to Didot point

Convert CSS reference pixel (px) to Didot point (dd).

Result0.703866 Didot point (dd)

Formula and method

result = value × (0.0002645833333333333 ÷ 0.0003759).

The source value is converted to the catalog’s canonical unit, then expressed in the target unit.

Worked examples

These examples use the same conversion engine as the calculator.

  • 1 px0.70386628 dd
  • 5 px3.51933138 dd
  • 10 px7.03866276 dd

Common CSS reference pixel values

CSS reference pixel to Didot point reference values
CSS reference pixel (px)Didot point (dd)
10.70386628
21.40773255
53.51933138
107.03866276
2517.59665691
5035.19331382
10070.38662765
250175.96656912
500351.93313825
1,000703.86627649

How to convert CSS reference pixel to Didot point

  1. Enter a value in CSS reference pixel in the converter above.
  2. The calculator converts it using the catalog’s linear method.
  3. Choose the decimal precision you need,then copy the displayed result if useful.

Frequently asked questions

What is the formula for CSS reference pixel to Didot point?

result = value × (0.0002645833333333333 ÷ 0.0003759). The source value is converted to the catalog’s canonical unit, then expressed in the target unit.

Can I convert Didot point back to CSS reference pixel?

Yes. Use Swap Units when the reverse pair is available in the catalog. The page URL changes to the reverse conversion and the entered value is retained.

Why can a value be rejected?

The engine rejects non-finite values and negative values for units that do not allow them.

How are displayed decimal places chosen?

Use the Decimal precision selector above the result. Very large or very small results switch to scientific notation when that makes the value easier to read.