Typography / pc → in
Convert Picas to CSS inches
Convert absolute CSS lengths and desktop-publishing points. Convert Picas (pc) to CSS inches (in). Find the formula, worked examples, unit definitions, and practical guidance below.
Reverse: CSS inches to Picas →
How to convert picas to CSS inches
These use CSS definitions: 1 inch = 96 CSS pixels = 72 points = 6 picas. A CSS pixel is not a physical screen pixel. Relative em, rem, and viewport units need a rendering context and are excluded.
Use x for the value in pc, b for the intermediate value in in, and y for the result in in.
in = pc × 0.16666666666666666
Worked examples
10 pc ≈ 1.66666666667 in
Step 1: (10 × 0.166666666667) ≈ 1.66666666667 in.
Step 2: 1.66666666667 ÷ 1 ≈ 1.66666666667 in.20 pc ≈ 3.33333333333 in
Step 1: (20 × 0.166666666667) ≈ 3.33333333333 in.
Step 2: 3.33333333333 ÷ 1 ≈ 3.33333333333 in.
Results are rounded to 12 significant digits. Converting units does not increase the precision of the original measurement. Very large or small values outside JavaScript’s finite numeric range are rejected.
About Picas
Picas (pc) measures typography under the conventions above. The base value in in is (x × 0.166666666667), where x is the numerical value in pc. Factors shown here are rounded for display; calculations use the stored factor.
About CSS inches
CSS inches (in) measures typography under the conventions above. The base value in in is (x × 1), where x is the numerical value in in. Factors shown here are rounded for display; calculations use the stored factor.
Definitions and sources
Keep these unit conventions consistent when using measurements in construction calculations.
Picas to CSS inches reference table
| Picas (pc) | CSS inches (in) |
|---|---|
| 1 | 0.166666666667 |
| 5 | 0.833333333333 |
| 10 | 1.66666666667 |
| 25 | 4.16666666667 |
| 50 | 8.33333333333 |
| 100 | 16.6666666667 |
| 1000 | 166.666666667 |
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