An emergency fund is money set aside specifically for the unplanned: a job loss, an unexpected repair, a medical bill. Its entire value comes from being available and untouched for anything else — which is exactly why keeping it mixed into general savings tends to erode it over time.

What people usually mean by "enough"

You'll often see emergency funds discussed in terms of months of essential expenses — rent or mortgage, utilities, groceries, insurance, minimum debt payments — rather than a fixed dollar figure, since that figure looks very different for a $2,000/month cost of living versus a $6,000/month one. The commonly cited range spans a few months up to about six, though what's realistic depends heavily on job stability, other income in a household, and how quickly expenses could be cut if needed.

Where it should sit

The general principle people apply is accessibility over growth — an emergency fund needs to be reachable quickly without a penalty or a delay, which usually rules out anything tied up for a fixed term. Beyond that, the specifics of where to hold it are genuinely worth a conversation with a financial advisor, since account types, rates, and tradeoffs change over time.

This is general information, not a personal target. How much makes sense for you depends on your specific expenses, income stability, and risk tolerance — a financial advisor can help you land on a number.