Work out tour guide ratio instantly with clear inputs, formula shown and shareable results.
Guide-to-guest ratios are driven by safety and audibility, not economics: adventure activities require roughly one guide per ten participants, walking tours around one per 25, and coach tours can run one guide for a full coach because the microphone carries.
Guides required
Guides = ceiling(Group size / Maximum group per guide)
Guide cost per guest
Cost per guest = Guide cost per departure / Group size
For adventure and water-based activities, frequently yes, and insurance cover usually depends on adhering to them.
Because guide cost is a step function: it stays flat until the ratio limit is crossed, so per-guest cost falls until the next guide is needed.