Switching from sitting to standing usually increases energy expenditure a little because more muscles stay engaged to support posture and balance. This calculator estimates the additional calories you burn by standing instead of sitting for the same amount of time. It is not a workout calorie calculator, and it is not designed to predict fat loss on its own.
Use it to answer practical questions like:
Researchers often describe activity intensity using METs (Metabolic Equivalents of Task). A MET is a multiple of resting energy use. Very roughly:
The key idea for this page is the difference between standing and sitting. We estimate “extra calories” as the calories for standing minus the calories for sitting over the same time period.
Calories per minute can be estimated from METs using the standard conversion:
Calories/min = 0.0175 × weight(kg) × MET
So, the extra calories from standing (vs sitting) for H hours is:
Where:
Because the equation is linear, doubling your standing time doubles the estimated extra calories, and heavier body weight also increases the estimate.
Tip: If you alternate frequently (e.g., 20 minutes standing per hour), add up the total standing time across the day and enter it as hours.
The output is best understood as a small daily “bonus” rather than a dramatic calorie change. For many people, the extra burn from quiet standing is modest—often tens of calories per day—yet it can add up over time.
Also remember: standing may influence your day in other ways (posture changes, more breaks, short walks). Those behaviors can matter more than quiet standing itself—but they’re not included unless your standing is more active than “quiet standing.”
Example: 70 kg person stands 4 hours/day instead of sitting.
Using METstand = 1.8 and METsit = 1.3, the MET difference is 0.5.
How to read this: If your standing is truly “quiet standing,” 147 kcal/day may be an overestimate for some people and an underestimate for others—real-world standing often includes micro-movements, shifting weight, short walks, and breaks. Treat it as a directional estimate and compare scenarios (e.g., 2 vs 4 vs 6 hours).
The table below uses common MET approximations (sitting 1.3 MET, standing 1.8 MET) to show how the estimate scales with weight and time.
| Weight | Extra calories per hour (standing vs sitting) | Extra calories for 4 hours/day |
|---|---|---|
| 60 kg | ~31.5 kcal/hour | ~126 kcal/day |
| 70 kg | ~36.8 kcal/hour | ~147 kcal/day |
| 80 kg | ~42.0 kcal/hour | ~168 kcal/day |
| 90 kg | ~47.3 kcal/hour | ~189 kcal/day |
These figures are calculated as: 0.0175 × weight(kg) × (1.8 − 1.3) × 60.
Safety note: Prolonged standing can cause discomfort for some people. Consider alternating positions, taking brief movement breaks, and adjusting desk height and footwear. If you have pain, numbness, swelling, or a medical condition, consider guidance from a qualified clinician or ergonomics professional.
It’s an estimate based on typical MET values. It’s most useful for comparing scenarios (e.g., 2 hours vs 5 hours standing) rather than treating the result as a precise measurement.
This calculator is for standing vs sitting. Walking has a much higher MET value than quiet standing, so you would need a walking-specific estimate to avoid undercounting.
Yes. Small movements can increase energy expenditure above quiet standing. That’s one reason real-world results vary.
Because the difference between sitting and quiet standing can be modest, and it varies by posture, movement, and measurement method. This page uses common MET approximations to provide a consistent baseline.
Many people do best with a mix: sitting, standing, and brief movement breaks. “All day” in either posture can cause discomfort; ergonomics and variety usually help.