Screens & design
Pick a tool. Each one answers as you type and shows how the result was worked out.
Pixel and point converterConvert CSS pixels, print points and picas to physical lengths.Aspect ratio calculatorFind an aspect ratio, or resize while keeping it.Screen PPI calculatorPixel density and physical size of any screen from its resolution and diagonal.Image print size calculatorPrint size from pixels and DPI, or the pixels needed for a print.PX to REM converterConvert CSS pixels and rem using your root font size.Golden ratio calculatorGolden-ratio proportions from any one length.