No — and actually, it's absolutely normal not to eat the same calories every day. The human body doesn't work with mathematical precision day-to-day, but constantly adapts to needs and circumstances.
Your energy needs change every day. One day you might move more, exercise harder, or feel more mentally worn out; another day you might rest more or sleep less. Factors like physical activity, sleep, stress, and even hormonal changes all affect how much energy your body needs.
That's why small fluctuations in your daily calorie intake aren't just not a problem—they're expected. Your body can balance out these differences as long as the overall direction stays steady.
What really matters isn't whether you "hit the number" every day, but your average calories over time — week to week, month to month — and your overall consistency in food choices. Trying to be absolutely precise often leads to stress and doesn't bring real benefit.
A flexible approach, that lets you make day-to-day adjustments, is more realistic, more sustainable, and ultimately more effective. When your days overall are heading in the same direction, your body responds—even if your calories aren't exactly the same every day.