Event calculator Event duration (hours)hoursEvent duration (hours) Beer size (litres)litresBeer size (litres) Target volume of beers to be sold at the event (beers)beersTarget volume of beers to be sold at the event (beers) POS average serving time per order (seconds)secondsPOS average serving time per order (seconds) Average number of beers sold per order (beers)beersAverage number of beers sold per order (beers) CalculateReset Estimated requirementEstimated requirement