How Often Should You Weigh Yourself?

October 02, 2026

Keeping track of your weight can be an important part of weight management. But when and how often should you weigh yourself? University Hospitals registered dietitian Renee Cooper, RD, LD, shares how to get the most useful information from your scale.

Individual Weight Goals Matter

“How often a person weighs themself depends on individual weight goals,” says Cooper. “However, for most people, weighing yourself 1-2 times a week is usually sufficient to stay aware of trends in your weight without causing added stress over daily changes.”

People with certain health conditions, such as diabetes, heart failure and kidney disease, may need to weigh themselves daily to track sudden increases in fluid retention. If they experience a weight gain of 2 or more pounds in a day, they may need to notify their doctor to see if medical care is needed.

When Is the Best Time to Weigh Yourself?

“The ideal time to weigh yourself is first thing in the morning after you use the bathroom and before you eat or drink anything,” says Cooper.

This is important because your body weight naturally fluctuates 2-5 pounds throughout the day and while you sleep. During the day, your weight can change due to:

Food and drink. What you eat and drink adds weight until your body gets rid of waste and extra fluids.
Foods high in sodium and carbohydrates. These foods can cause your body to hold on to water, which can make the number on the scale go up slightly.
Exercise. Heavy sweating during exercise can cause a temporary drop in weight because your body loses water.
Bathroom habits. Whether you have recently urinated or had a bowel movement can affect your weight.

Overnight, your weight can fluctuate because:

You lose water while you sleep. Your body loses a small amount of water through breathing and sweating.
Your metabolism keeps working. Your body continues using stored energy and processing fluids while you sleep.
Your digestive system continues working. This can help make your morning weight one of the lowest and most consistent readings of the day.

If you can’t weigh yourself first thing in the morning, Cooper recommends choosing a consistent day and time. You should also wear little to no clothing or the same lightweight outfit each time you step on the scale.

What Kind of Scale Should You Use?

“Not all scales are created equal,” says Cooper. “Digital bathroom scales are typically more precise and consistent compared to older mechanical models.”

Smart scales may be worth trying if you want to automatically track your weight and see how it changes over time. These digital scales can send information about your weight to an app on your smartphone.

Some smart scales also use technology called bioelectrical impedance analysis (BIA) to estimate body fat and muscle mass. BIA sends a small electrical current through your feet to make these estimates. However, Cooper cautions that data collected by smart scales should be viewed only as approximate, because hydration levels, food intake, recent exercise and other factors can skew the results.

Can Weighing Yourself Have Potential Negative Effects?

Yes. For some people, weighing themselves can lead to more anxiety or stress, especially when the number on the scale goes up unexpectedly.

“I often remind patients that weight loss is not a one-directional process,” says Cooper. “You may see ups, downs and plateaus, but if the overall trend is down, that is a success.”

Is It Ever Okay to Abandon the Scale Entirely?

Though scales can be very helpful for managing weight, you don’t have to use one. For people who prefer not to weigh themselves, there are other ways to monitor weight loss progress, including:

Paying attention to how your clothes fit and feel. Do they feel looser, tighter or the same?
Taking body measurements.
Taking pictures and comparing them over time.
Noticing if you have more energy.
Noticing if you feel stronger – for example, by being able to lift heavier weights.