Responsive Font Scale Calculator
Fluid type sizes across viewport range.
Inputs
Results
H1 size (px)
61.04
H2 size (px)48.83
H3 size (px)39.06
H4 size (px)31.25
Body size (px)16
Scale contrast (H1/body)3.82
Fluid slope (vw coeff.)0.18
Fluid intercept (rem)0.88
How to Use This Calculator
- Enter Base font size (px), Scale ratio, and Number of steps.
- Set Min viewport (px) and Max viewport (px).
- Review the H1 size (px) result.
- Use H2 size (px) and H3 size (px) to inform your decision.
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