calc() as CSS unit value
- CRMethod of allowing calculated values for length units, i.e. width: calc(100% - 3em)
Chrome
- 4 - 18: Not supported
- 19 - 25: Supported
- 26 - 123: Supported
- 124: Supported
- 125 - 127: Supported
Edge
- 12 - 123: Supported
- 124: Supported
Safari
- 3.1 - 5.1: Not supported
- 6: Supported
- 6.1 - 17.3: Supported
- 17.4: Supported
- 17.5 - TP: Supported
Firefox
- 2 - 3.6: Not supported
- 4 - 15: Supported
- 16 - 124: Supported
- 125: Supported
- 126 - 128: Supported
Opera
- 9 - 12.1: Not supported
- 15 - 108: Supported
- 109: Supported
IE
- 5.5 - 8: Not supported
- 9: Partial support
- 10: Partial support
- 11: Partial support
Chrome for Android
- 124: Supported
Safari on iOS
- 3.2 - 5.1: Not supported
- 6: Supported
- 7 - 17.3: Supported
- 17.4: Supported
- 17.5: Supported
Samsung Internet
- 4 - 23: Supported
- 24: Supported
Opera Mini
- all: Not supported
Opera Mobile
- 10 - 12.1: Not supported
- 80: Supported
UC Browser for Android
- 15.5: Supported
Android Browser
- 2.1 - 4.3: Not supported
- 4.4 - 4.4.4: Partial support
- 124: Supported
Firefox for Android
- 125: Supported
QQ Browser
- 14.9: Supported
Baidu Browser
- 13.52: Supported
KaiOS Browser
- 2.5: Supported
- 3: Supported
Support can be somewhat emulated in older versions of IE using the non-standard expression()
syntax.
Due to the way browsers handle sub-pixel rounding differently, layouts using calc()
expressions may have unexpected results.