Eggs are pretty incredible. They're a great source of protein, can be eaten any time of day, and they're a vital ingredient in almost all our favorite baked goods. They also happen to be relatively inexpensive, perfectly portioned, and they last a long time. But how long do eggs last, actually? If you're anything like us, your carton rarely makes it past week two in the fridge. According to the FDA, eggs should be used between three weeks of purchase.