That's a great question about something we see every day but rarely think about! The average capacity for a standard-sized public trash can in an urban setting is typically between 60 and 120 liters (about 16 to 32 gallons). You'll most commonly find the 120-liter models on city sidewalks, in parks, and near public buildings.
Of course, it's not one-size-fits-all. The actual capacity can vary quite a bit. Smaller "litter bins" at bus stops might be only 30-40 liters, while large communal bins in apartment complexes or busy squares can hold 240 liters or more. The size chosen depends heavily on location and expected foot traffic. A quiet residential street needs a different solution than a bustling downtown corridor.
The design has evolved too. While classic metal mesh baskets are still around, many cities now use heavy-duty plastic or steel containers with lids. These larger units help contain odors, prevent animals from scattering trash, and often feature separate compartments for recycling—a growing trend in urban waste management.
So, while 60-120 liters is the standard range, the next time you're in the city, take a closer look. You'll start to notice the clever ways urban planners match the bin to the need, all to keep our public spaces clean.