1. What is a Line Height Calculator?

Definition: This calculator determines the optimal line height (leading) for text based on font size and a multiplication factor.

Purpose: It helps designers and developers create better typography by calculating proper spacing between lines of text.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( LH \) — Line height (pixels)
• \( FS \) — Font size (pixels)
• \( k \) — Line height factor (unitless, typically 1.2-1.5)

Explanation: The font size is multiplied by a factor to determine the vertical space between baselines of text.

3. Importance of Line Height Calculation

Details: Proper line height improves readability, creates visual harmony, and enhances user experience in digital and print media.

4. Using the Calculator

Tips: Enter the font size in pixels and line height factor (default 1.2). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What's a typical line height factor?
A: For body text, 1.2-1.5 is common. Headings often use smaller factors (1.0-1.2), while long paragraphs may need larger factors (1.5-1.8).

Q2: Should I use pixels for line height?
A: While pixels are precise, consider using unitless values in CSS (e.g., line-height: 1.5) for responsive designs.

Q3: When would I use a higher factor?
A: Use higher factors for improved readability in long texts, small fonts, or complex typefaces.

Q4: How does line height affect accessibility?
A: Proper line height helps users with dyslexia and visual impairments by preventing text from appearing crowded.

Q5: Can I use this for print design?
A: Yes, though print often uses points instead of pixels. The same principles apply.