How Long to Walk to Burn 500 Calories? Net vs. Gross

For a 155 lb (70 kg) adult, walking 500 calories takes about 90 minutes at a brisk 3.5 mph if you count total calories (gross), and about 110 minutes if you count only the extra calories above resting (net). At an easy 3 mph pace, plan on roughly 1 h 50 to 2 h 30.

If you searched for how long to walk to burn 500 calories and found answers from about 90 minutes to over two and a half hours, nobody is lying. The pages use different pace assumptions, and they count different things. This guide shows the math with one public data source, so you can pick the number that fits your own goal.

How long to walk to burn 500 calories, by weight and pace

The table uses MET values from the 2024 Adult Compendium of Physical Activities. A MET is defined there as 1 kcal per kg of body weight per hour, roughly the cost of sitting quietly. The compendium lists three walking levels on flat, firm ground: 3.8 METs for 2.8 to 3.4 mph (code 17190), 4.8 METs for 3.5 to 3.9 mph (code 17200) and 5.5 METs for 4.0 to 4.4 mph (code 17220).

Each cell shows minutes to reach 500 calories as gross / net. The figures are our own arithmetic from those MET values, rounded to the nearest minute.

Read it like this: a 155 lb adult walking briskly reaches 500 gross calories in about 89 minutes, or 500 net calories in about 112 minutes. These are averages for groups of people. Your own result will differ with fitness, terrain, stride and how much of the walk is spent waiting at crossings, so treat the table as a planning estimate, not a measurement.

Why websites give different answers

The same math explains the gap you see in search results. One popular guide says a 155 lb person walking 3.5 mph needs about 90 minutes, which matches the gross column above. A food-to-walking calculator reports about 2 hours 37 minutes for 150 lb at an easy 3 mph, which is the net calculation for the 3.8 MET level. Both are correct for what they count, and neither tells you which one you need.

Three things move the number:

• Gross or net. Net asks for roughly 20 to 35 percent more time in the table, because it removes the resting energy.
• Pace. Going from an easy walk to a brisk one cuts the time by roughly a fifth to a quarter.
• Body weight. Heavier bodies spend more energy per minute, so they reach 500 sooner.

Which number should you use: gross or net?

If you want to know how much extra energy a walk adds on top of your day, use net. Many daily calorie targets are built from a total that already includes resting energy, so counting the gross figure can count that resting energy twice. Gross is the number most fitness trackers and charts show, and it is fine for comparing activities with each other.

If you are unsure how your own target was built, use the net column. It is the more cautious estimate.

How many steps is that?

Walking speed is hard to know without a treadmill, but steps per minute are easy to count. In the CADENCE-Adults laboratory study of 76 adults aged 21 to 40, about 100 steps per minute matched moderate intensity (3 METs), and each extra 10 steps per minute added roughly 1 MET. That puts 110 steps per minute near 4 METs and 120 near 5.

Applied to the brisk row of the table, 90 to 110 minutes at 110 to 120 steps per minute is roughly 10,000 to 13,000 steps. This is a rough conversion from a study of younger adults, so your count may differ.

Is 500 calories in one walk a realistic goal?

For most people, 500 calories in one go is a long walk. The CDC says adults need at least 150 minutes of moderate activity a week, for example brisk walking 22 minutes a day, and notes that you can break activity into smaller chunks of time. It also notes that most weight loss comes from eating fewer calories, while activity helps keep it off.

A calmer way to use the table is weekly. By our arithmetic, the CDC’s 150 minutes of brisk walking a week comes to about 840 gross calories, or about 670 net, for a 155 lb adult at 4.8 METs. You do not need a single heroic walk.

Putting it into your day

Pick your row and column from the table, decide whether you are tracking gross or net, and write the minutes down once. Then forget the math and just walk.

If you log meals in an app, make sure walking is counted the same way every day. In Scalie, if you go over your calories, your steps count, from your iPhone or a watch that syncs with Apple Health. You can see how the app works on the Scalie home page, and the support page explains the Apple Health setup and how to log a walk by hand. More guides will appear in the Scalie blog.

FAQ

How many steps is 500 calories?

Roughly 10,000 to 13,000 steps for a 155 lb adult at a brisk pace, using the cadence-to-MET link from the CADENCE-Adults study. A slower pace usually takes more steps in total, because more minutes are needed.

How many miles do you walk to burn 500 calories?

For a 155 lb person at 3.5 mph, about 5 miles by the gross count (89 minutes) and about 6.5 miles by the net count (112 minutes).

Can I burn 500 calories walking for 30 minutes?

No. A 155 lb adult walking briskly spends about 170 gross calories, or about 130 net, in 30 minutes. Reaching 500 takes about three times as long.

Is it better to walk 500 calories at once or in short walks?

For general health, the CDC says activity can be spread out and broken into smaller chunks. The calories add up either way, so several shorter walks are a valid way to reach the same total.

Estimates, not medical advice. Calorie burn varies from person to person, and these figures are averages. Talk to a doctor before starting a new exercise plan if you have a health condition.