Line Height Calculator
Calculate readable line-height values for body copy, long-form content, and headings without guessing.
Features
Readable Defaults
See recommended line-height ratios for different kinds of text instead of guessing from memory.
Context-Specific Guidance
Compare tighter heading settings with looser body-copy settings in the same tool.
Implementation Ready
Use the result for CSS, design tokens, content systems, or editorial specs.
How It Works
Start with the text size you are designing or implementing.
Compare tighter, normal, and looser line-height recommendations.
Apply the suggested ratio or absolute line height in code or documentation.
Frequently Asked Questions
Related Tools
Convert pixel values to rem and back again using your preferred root font size.
Convert between pixels, points, picas, em, rem, inches, millimeters, and more.
Paste or type your writing and instantly see the word count, character count, sentence count, and estimated reading time. Supports multiple sections and auto-saves to your browser.