How Many Calories Do You Burn Lifting Weights?

Most people burn about 180 to 360 calories per hour lifting weights at a bodyweight near 150 pounds, based on Harvard Health MET data. Lighter, slower sessions land near the bottom of that range, while heavier lifters and fast, vigorous training push past 400. Rest length, muscle mass, and effort all move the number.

That is the short answer. The longer one is more interesting, because lifting burns calories in a way cardio does not: it keeps working after you rack the last set. Here is what actually drives the number, a chart you can read against your own bodyweight, and how to burn more per session.

What Changes the Number

Two people can do the same workout and burn very different amounts. Four things explain most of the gap.

• Bodyweight. Moving a heavier body costs more energy. A 185 lb lifter burns roughly 40% more than a 130 lb lifter doing the identical routine.
• Intensity. Heavy compound sets with short rest raise your heart rate and burn far more than slow isolation work with long breaks. Harvard Health separates “general” weight training from “vigorous” for this reason, and the vigorous figure is close to double.
• Rest between sets. Scrolling your phone for three minutes between sets drops your average burn hard. Shorter rest keeps the engine running.
• Muscle mass. More lean muscle means a higher energy cost during the lift and a higher resting metabolism the rest of the day (more on that below).

MET values, short for metabolic equivalents, are the standard way researchers estimate this. One MET is your resting rate. Harvard Health assigns light-to-moderate weight training about 3.5 METs and vigorous weight training about 6.0 METs, which is where the ranges in this guide come from.

Calories Burned Lifting Weights, by Bodyweight and Time

The table below uses the Harvard Health MET values (3.5 for moderate, 6.0 for vigorous) applied to the standard formula: calories per minute = MET × 3.5 × weight in kg ÷ 200. Numbers are rounded.

A few things to read out of it. A 155 lb person doing a solid, moderate-paced 45 minute session burns around 194 calories, roughly what 10 minutes of hard cardio plus some stretches out over the full hour. Push the same person into vigorous training for a full hour and it more than doubles to about 443. The gap between “moderate” and “vigorous” is the single biggest lever you control day to day.

Treat these as estimates, not a food scale. Fitness trackers tend to overstate lifting calories because they read wrist movement, not muscular work, so the MET method above is usually closer for resistance training.

The Afterburn Effect (EPOC)

Here is the part cardio calculators miss. After a hard lifting session, your body keeps burning extra calories for hours while it repairs muscle, restocks energy, and returns your temperature and hormones to baseline. Exercise scientists call it EPOC, or excess post-exercise oxygen consumption. Most people just call it the afterburn.

Cardio produces some afterburn too, but resistance training, especially heavy compound work, tends to produce more because it causes more muscle disruption to repair. Published estimates vary, and EPOC usually adds somewhere in the range of 5% to 15% on top of the calories burned during the session, sometimes lasting well past the workout. It is not a magic multiplier, but over a training week it adds up, and it is a real reason lifting supports fat loss beyond the hour you spend in the gym.

The takeaway: the calories in the chart above are the floor for a hard session, not the ceiling.

How to Burn More Per Session

If your goal is more calories out per hour, you do not need a longer workout. You need a denser one.

1. Lead with compound lifts. Squats, deadlifts, rows, presses, and lunges recruit large muscle groups at once, so they cost far more energy than curls or calf raises. Build your session around a heavy leg-focused workout and add pulls like the seated row.
2. Use supersets. Pair two exercises back to back with no rest between them (for example a squat then a row). You keep your heart rate up and pack more work into the same minutes.
3. Cut your rest. Dropping rest from three minutes to 60 to 90 seconds is the fastest way to raise average burn. It moves you from the “moderate” column toward the “vigorous” one.
4. Add tempo and range. Slower lowering phases and full range of motion keep muscles under tension longer, which raises the energy cost of every rep.
5. Progress the load. Heavier weight over time means more work done, more calories, and more muscle built.

Fuel it properly so you can train hard again tomorrow. See what to eat after a workout, and if you are structuring phases around a body-composition goal, our guide to bulking and cutting explains how calories in and out fit together.

Why Muscle Keeps Burning Calories at Rest

The biggest long-term payoff from lifting is not the hour on the floor. It is what the muscle you build does the other 23 hours.

Muscle tissue is metabolically active, so it uses energy even when you are sitting still. Adding lean muscle nudges up your resting metabolic rate, the calories you burn just being alive. The per-pound effect is smaller than gym folklore claims (research puts skeletal muscle at roughly 6 calories per pound per day at rest, not the 50 you sometimes hear), but it is real, it stacks, and unlike a cardio session it works while you sleep. Combine that with the afterburn and the direct burn during training, and lifting quietly raises your total daily energy use on three fronts.

That is why resistance training is so effective for fat loss and weight maintenance: it protects and builds the tissue that keeps your metabolism up, instead of only spending calories in the moment.

Putting It Together

Lifting weights burns a respectable amount during the session, roughly 180 to 360 calories an hour for most people and more for heavier or harder-training lifters, then keeps paying out through the afterburn and the muscle you build. If you want the number higher, train denser rather than longer: compound lifts, supersets, short rest. If you want it to matter for months, keep adding muscle. Grab your training gear and make the hour count.

Frequently Asked Questions

How many calories do you burn lifting weights for 1 hour?

For a 150 to 155 lb person, about 258 calories in a moderate hour and up to 443 in a vigorous one, per Harvard Health MET values. Heavier lifters burn more: a 185 lb person can top 500 in a hard hour.

Does lifting weights burn more calories than cardio?

During the session, steady cardio usually burns more calories per minute. But lifting produces a larger afterburn and builds muscle that raises your resting metabolism, so over a full day and week the totals get much closer.

Do you keep burning calories after lifting weights?

Yes. Through EPOC (the afterburn), your body burns extra calories for hours after a hard session while it repairs muscle and returns to baseline, often adding another 5% to 15% on top of the workout burn.

Is lifting weights good for fat loss?

Very. It burns calories during training, adds afterburn, and builds calorie-hungry muscle that lifts your resting metabolism. Paired with a modest calorie deficit and enough protein, it is one of the most effective tools for losing fat while keeping muscle.

How accurate is my fitness tracker for lifting calories?

Not very. Wrist trackers read movement, not muscular effort, so they tend to underestimate or overestimate resistance training. The MET-based chart above is usually a closer estimate for lifting.