CSS Units Converter

Convert between all CSS units with breakpoint presets and fractional precision.

Value

From Unit

Precision (decimals)

Base Font Size (px) — rem/em/%/ch/ex/lh

Viewport Width (px) — vw/vh/vmin/vmax

Viewport Height (px)

Breakpoint Presets

All Conversions

pxpixelsabsolute

16.0000

ptpoints (1pt = 1/72in)absolute

12.0030

pcpicas (1pc = 12pt)absolute

1.0000

ininchesabsolute

0.1667

cmcentimetersabsolute

0.4233

mmmillimetersabsolute

4.2334

Qquarter-millimetersabsolute

16.9330

remroot em (root font-size)relative

1.0000

emem (parent font-size)relative

1.0000

%percent (parent)relative

100.0000

vwviewport width (1/100th)relative

0.8333

vhviewport height (1/100th)relative

1.4815

vminviewport min (vw/vh)relative

1.4815

vmaxviewport max (vw/vh)relative

0.8333

dvwdynamic viewport widthrelative

0.8333

dvhdynamic viewport heightrelative

1.4815

svwsmall viewport widthrelative

0.8333

svhsmall viewport heightrelative

1.4815

lvwlarge viewport widthrelative

0.8333

lvhlarge viewport heightrelative

1.4815

ch0-width of current fontrelative

1.0000

exx-height of current fontrelative

1.0000

lhline-height of elementrelative

1.0000

rlhline-height of rootrelative

1.0000

Tip: Viewport units (vw/vh/dvw/dvh/svw/svh/lvw/lvh) use the viewport dimensions you set above. Font-relative units (rem/em/ch/ex/lh/rlh) use the base font size. Use breakpoint presets for common device sizes.