The Code-128 barcode length calculator will compute the total length of a Code 128 barcode given the total number of data characters and the X dimension. Use this calculator to determine if you have sufficient space available on your tag for your desired barcode.

The Code 39 barcode length calculator is a useful tool that will compute the length of a Code 39 bar code given the total number of data characters, X dimension and wide-to-narrow ratio. Use this tool to determine if your Code 39 barcode will fit within the space you have available on your tag.