There is no strict rule for the maximum length of a subtitle, but there are general guidelines and recommendations. The length of a subtitle is often measured in characters per line and lines per subtitle. Number of lines per subtitle: Ideally, the number of lines per subtitle should be limited to two, although some subtitle formats allow up to two lines. Length per line: It is recommended to limit the length of a subtitle line to approximately 35 to 40 characters. Dit bevordert de leesbaarheid, vooral bij snelle weergave van ondertitels. Reading time: Make sure that the reading time of a subtitle corresponds to the speaking time of the accompanying dialogue. In general, it is recommended to display subtitles on the screen for approximately 1 to 7 seconds, depending on the speed of the narration and its complexity. The goal is to keep the subtitles readable and understandable even when they appear quickly on the screen. Subtitles that are too long can be problematic, especially for viewers who don't fully understand the language or have difficulty reading at high speed.