Plan for one radio per person who talks, plus spares for charging, guests, and the inevitable dead battery.
The rule of thumb when people ask how many walkie talkies they need is simple: one per person who actually communicates. If a crew of ten has five leads who talk and five workers who mostly listen, sure, you could try fewer units — but workers end up needing to answer sooner than you think. Realistically, the walkie talkie quantity that works is crew size plus two spares. Nobody tells you this but the spares matter more than the main units, because someone always forgets to charge overnight.
Here’s the deal. A radio per person sounds like a lot until shift two, when two units are dead and the charger bay is full. Think about shifts when you count. If you run two shifts, you can charge between shifts and buy fewer units, but honestly, crews hate hunting for a working radio at shift change. It eats minutes and builds resentment. One per person per shift, plus a charger that handles a quarter of the fleet at once, is the boring answer that just works.
And don’t forget support gear. Extra battery packs are cheaper than extra radios, and a good multi-slot charger keeps the fleet honest. Start by picking one model — browse radio lineup and check which units support multi-bay charging — then scale the count as the crew grows. Sticking with a single model from day one saves you from mixed-fleet chaos. Trust me on that one, I’ve seen it.