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Number bases

What is this hex value in decimal and in binary?

One value in four bases, with the binary grouped into bytes so a bitmask is readable. It also prints the value as a CSS colour channel and as a file permission, which are the two reasons people convert bases at all.

420 1a4 read as hexadecimal.
  • hexadecimal 0x1A4
  • binary 0b1 10100100
  • octal 0o644
  • as a colour channel out of range
  • as a file mode 644

how to use it

  1. Type the value and say which base it is already in.
  2. Read the other three; the binary is grouped in eights.
  3. The last rows are the two things this number usually turns out to be.

what this page cannot do

A number you already have. The extension reads the values a page is actually holding - a bitmask in storage, a colour channel in a computed style - so there is something to convert in the first place.

Console in the panel What is this page saying to its console?