Calories Burned Weight Lifting Calculator
Use this calories burned weight lifting calculator to estimate the calories you burn in a lifting session from your weight, time and effort.
Updated October 2, 2026
Medical Disclaimer: This calculator provides a general estimate based on established research and is for educational purposes only, not a substitute for medical advice. Individual results can vary based on health conditions, so consult a qualified healthcare professional or registered dietitian before making significant changes to your diet, exercise, or health routine. Read our full Medical Disclaimer.
How Calories Burned Lifting Weights Is Calculated
Calories burned lifting weights is the energy your body uses during a strength training session. It depends on how much you weigh, how long you train and how hard the session is. This tool is for adults and covers weight training only, so for other activities use the general Calories Burned Calculator.
What Calories Burned Lifting Measures
It estimates the energy cost of a whole session, including the rest between sets. It does not measure how strong you are or how much muscle you build. It is also not a heart rate or watch reading, it is a standard estimate based on average values from research.
The Formula
The calculator uses MET values. A MET is a multiple of your resting energy use, and one MET is about 1 calorie per kilogram of body weight per hour².
Calories burned = MET x body weight (kg) x time (hours)
The MET numbers come from the 2024 Adult Compendium of Physical Activities, a research list of measured activity costs¹ ².
How This Calculator Computes Your Result
Enter your weight in kilograms or pounds, your total session time in minutes, and one of three effort levels. Pounds are converted to kilograms, and minutes are converted to hours. The answer is rounded to the nearest whole calorie.
Count the whole session, including rest between sets. Leave out warm-up cardio and long breaks. The result includes the energy your body would use at rest anyway. The tool also shows a table of calories per 30 and per 60 minutes for all three effort levels at your weight.
What Your Result Means
Pick the level that best matches your session. The MET values come from the compendium¹.
Effort level | What it looks like | MET | Compendium code |
Light or moderate | Multiple exercises, 8 to 15 reps at varied weights | 3.5 | 02054 |
Vigorous | Heavy lifting, powerlifting or bodybuilding | 6.0 | 02050 |
Circuit training | Weights with supersets and short rests | 5.8 | 02055 |
Here is what that gives for a 70 kg (154 lb) adult:
Effort level | Per 30 minutes | Per 60 minutes |
Light or moderate | 123 kcal | 245 kcal |
Vigorous | 210 kcal | 420 kcal |
Circuit training | 203 kcal | 406 kcal |
A heavier person burns more at the same effort, because the formula multiplies by weight. Use the numbers to compare sessions, not to match food to the calorie.
Why Lifting Estimates Are Rough
Lifting is mostly short bursts of work followed by rest. In one study of an 8-exercise session, people averaged about 3.9 METs (men) to 4.2 METs (women), and the session burned less than 150 calories³. In another small study with long rests, moderate dumbbell sessions measured 2.4 to 3.9 METs⁴. The longer you rest, the lower your real average.
The error can go the other way too. Methods that only count oxygen use can miss energy made without oxygen. Adding blood lactate raised the measured cost of weight training in one study⁵. The compendium authors also say its values do not reflect precise individual energy use². So treat your result as a ballpark.
What About the Afterburn Effect?
After hard exercise, your body can use a little more energy while it recovers. This is called excess post-exercise oxygen consumption, or EPOC. In one study of 10 young men, resting metabolic rate was still higher 12 hours after a resistance session than before it⁶. The studies are small, and results vary with how hard and long you train. This calculator does not add anything for afterburn.
A Note on Accuracy
This is an estimate based on group averages, not a measurement of your own body. Rest time, lifting speed, exercise choice, age, sex and muscle mass all change your real number. The tool is for adults. It uses the 2024 compendium, which was built mainly for ages 19 to 59.
Frequently Asked Questions
How many calories does weight lifting burn in an hour?
For a 70 kg (154 lb) adult, this calculator gives about 245 calories for light or moderate lifting and about 420 for vigorous lifting. Your number goes up with your weight and the effort of the session.
How accurate is a weight lifting calorie calculator?
It is a rough guide. Rest between sets and individual differences mean real values can sit above or below the estimate³ ⁴ ⁵.
Do I count rest time between sets?
Yes, count the whole session from your first working set to your last. The effort level values already assume you rest between sets.
Does lifting weights burn calories after the workout?
A small extra amount, for hours after a hard session⁶. It is hard to measure for one person, so this calculator leaves it out.
Sources
2024 Adult Compendium, Conditioning Exercise, Compendium of Physical Activities
2024 Adult Compendium of Physical Activities, Herrmann et al., 2024
Energy Cost of the ACSM Single-Set Resistance Training Protocol, Phillips and Ziuraitis, 2003
Energy Expenditure during Acute Weight Training Exercises, Peng et al., 2021
Contribution of Blood Lactate to the Energy Expenditure of Weight Training, Scott, 2006
EPOC After Steady-State, Intermittent and Resistance Exercise, Greer et al., 2015