Display Unit Converter
Quick converters engineers reach for when reading datasheets and laying out boards: pixels to millimetres, inches to millimetres, nits to foot-lamberts, mils to millimetres, DPI, and Celsius/Fahrenheit.
Pixels ↔ millimetres (needs DPI)
Convert a pixel pitch or dimension to physical size at a given dot density.
Inches ↔ millimetres
1 inch = 25.4 mm.
Nits ↔ foot-lamberts
1 fL ≈ 3.426 nits (cd/m²). Useful for aviation/legacy spec sheets.
Mils ↔ millimetres
1 mil = 0.0254 mm. For FPC / flex thickness and trace width.
DPI from size + pixels
Enter physical size (inch) and pixel count of one axis.
Celsius ↔ Fahrenheit
Operating / storage temperature conversion.
FAQ
Which DPI should I assume for a TFT panel?
TFT modules are usually specified by pixel pitch in mm (e.g. 0.0645 mm ≈ 394 DPI). Convert the pitch to DPI with the tool above rather than guessing from diagonal size, which includes bezel.
Why convert nits to foot-lamberts?
Older military/aerospace and some industrial specs still quote luminance in fL. The fixed ratio 1 fL = 3.426 cd/m² lets you compare directly with modern datasheets.
When should I use this display unit converter?
Use it whenever a datasheet mixes unit systems — for example an overseas panel quoting pitch in mm while your layout tool works in mils, or a luminance spec in fL next to a cd/m² target. It removes mental math and unit-confusion errors during component selection.
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