CSS Clamp Generator
Clamp options
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About CSS Clamp Generator
CSS clamp() lets you define a minimum value, a flexible preferred value, and a maximum value in one expression. It is especially useful for fluid typography and responsive spacing.
This generator calculates a clamp() expression from your minimum and maximum sizes and the viewport range where the value should scale.
How to use this tool
- Choose the CSS property you want to generate.
- Set the minimum and maximum size.
- Set the viewport range where the value should scale.
- Copy the clamp() value or the full CSS rule.
Tips
- Use clamp() for headings that should scale smoothly between mobile and desktop.
- Use padding or gap clamp values to avoid many breakpoint-specific spacing rules.
- Keep the minimum viewport smaller than the maximum viewport.
CSS clamp() checks before shipping fluid values
A fluid formula needs useful minimum and maximum bounds, a predictable viewport range, and validation at intermediate sizes.
Define real bounds
Choose minimum and maximum values from the design requirements rather than extrapolating beyond readable or usable sizes.
Check the preferred value
Verify the rem and viewport coefficients produce the intended endpoints and do not make the value shrink as the viewport grows.
Test intermediate widths
Inspect narrow phones, tablets, laptops, wide screens, zoom levels, and long translated text—not only the two endpoints.
Preserve accessibility
Use relative units where appropriate and confirm text still responds to browser zoom and user font-size preferences.
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