Perfect Rhythm with Line Height Calculator
Typography is math. The **Line Height Calculator** tool at **Online Tool Base** uses the Golden Ratio (1.618) and other typographic scales to determine the perfect `line-height` for your text. Readability depends heavily on the relationship between your font size and the width of your text block (measure).
The Golden Ratio in Type
If lines are too close, they are hard to track. If they are too far apart, the eye gets lost. **onlinetoolbase.online** calculates the optimal spacing to ensure a comfortable reading experience for your users. It takes the guesswork out of setting your global typographic baseline.
Why Use This Tool?
Default `line-height: normal` is often too tight for long-form reading on screens. This tool outputs values that follow the "Optimal Line Height" rules derived from centuries of print design, adapted for the responsive web. It helps you build a vertical rhythm that feels professional and easy on the eyes.
Key Features
- Golden Ratio Mode: Multiplies font size by 1.618 for ideal spacing.
- Relaxed vs Tight: Options for different content densities.
- Grid Alignment: Helps match text to a baseline grid.
- CSS output: Provides unitless line-height values (best practice).
How to Use
- Enter your base Font Size (e.g., 16px).
- Enter your content width (optional, for advanced calculation).
- Select a ratio standard (Golden, 1.5, etc.).
- Copy the `line-height` CSS value.
Technical & Privacy Note
Math only. The **Line Height Calculator** from **Online Tool Base** computes values locally. No data is stored.