What is the maximum permitted length of a rugby union field of play?

The maximum permitted length of a rugby union field of play is 100 metres, measured between the two goal lines.

World Rugby’s laws distinguish the field of play from the in-goal areas behind the goal lines. Each in-goal area may extend up to 22 metres deep, so the total playing enclosure can be longer than 100 metres when those areas are included.

The field of play may be between 94 and 100 metres long. Its width may range from 68 to 70 metres, giving clubs and stadiums some flexibility while preserving the game’s essential proportions.

This measurement is often confused with the total touchline length. A rugby pitch’s touchline runs beside the field of play and the in-goal areas, whereas the 100-metre limit applies only from goal line to goal line. Rugby sevens uses the same field dimensions but fewer players and shorter matches.