How many tacos per person

Plan 3 tacos per adult, 4–5 for big eaters and 1–2 per child, with about 2 oz of cooked filling in each taco.

Counts are for regular 6-inch tacos served as the main course with rice and beans on the side. Small street tacos go faster, so plan 4–5 each.

Who / occasion	Per person	10 people	20 people	30 people	50 people
Adults	3 tacos	30	60	90	150
Big eaters	4–5 tacos	40–50	80–100	120–150	200–250
Kids under 10	1–2 tacos	10–20	20–40	30–60	50–100
Street tacos (small)	4–5 tacos	40–50	80–100	120–150	200–250

Tips

Filling: about 2 oz of cooked meat per taco, so roughly 6 oz (a little over 1/3 lb) per adult.
Buy tortillas in a 10–20% surplus; a few always tear.
With chips, rice and beans on the table, the low end of each range is enough.
Taco bar with two fillings? Split the filling weight between them rather than doubling it.

These counts are rules of thumb. Portion sizes vary by restaurant and caterer, so ask them if their pieces or trays run small or large.