CSS Clamp Calculator
Calculate a clamp expression that scales smoothly between minimum and maximum sizes.
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What is CSS Clamp Calculator?
CSS Clamp Calculator creates a fluid size that grows linearly between chosen viewport and size limits.
How to use CSS Clamp Calculator
- 01
Enter minimum and maximum sizes, viewport bounds and the root font size.
- 02
Confirm that each maximum is greater than its matching minimum.
- 03
Copy the clamp expression and review its slope and intercept.
CSS Clamp Calculator FAQ
Why does the middle clamp value combine rem and vw?
The rem intercept respects the root scale while the vw term provides viewport-based growth between the limits.
Is CSS Clamp Calculator private to use?
Yes. CSS text, values and previews are processed locally in your browser and are not sent to Toolnera.