# Bandwidth
> Bandwidth is how much data a connection can move at once.
Topics: Connectivity
Difficulty: Everyday
Aliases: internet capacity
Updated: 2026-06-26T08:00:00.000Z
## In one analogy

Think of it like the number of lanes on a road.

## Go deeper
Bandwidth is how much data a connection can move at once. In everyday buying decisions, the useful question is not just what the spec says, but what it changes for comfort, cost, speed, safety, or battery life.