55 kg — 29 Calorías Extra/Hora de Pie

At 55 kg (121 lb), standing burns 29 extra kcal/hour versus sitting (standing 104 kcal/h vs 75 kcal/h sitting, per Ainsworth 2011). Across 230 workdays with 3 h/day standing, the annual surplus is ~19,924 kcal—equivalent to about 5.7 pounds of fat.

Standing burns ≈ 29 more kcal/hour than sitting at 55 kg (121 lb).
Swap 3 h of sitting for standing each workday → ≈ 87 kcal/day, 433 kcal/week, 19924 kcal/year (~5.7 lb of fat).
SITTING
75 kcal/h
STANDING
104 kcal/h
EXTRA / HOUR
+29 kcal
EXTRA / YEAR
19924 kcal

ADJUST FOR YOU

EXTRA CALORIES BURNED
+87 kcal/day · 19924 kcal/year

How this is calculated

Energy burn is estimated from metabolic equivalents (METs): light office work seated is about 1.3 MET, standing light work about 1.8 MET. Hourly burn is MET × body-mass(kg) × 1.05. The difference is the extra you spend by standing instead of sitting.

Reality check: a standing desk is a posture and movement tool, not a weight-loss device. The extra 29 kcal/hour is real but modest — the bigger wins are less prolonged sitting, better circulation, and an easier path to staying upright.

Calories by body weight

WEIGHT + / HOUR + / YEAR* DETAILS
50 kg
110 lb		 +26 kcal 18112 kcal ► VIEW
55 kg
121 lb		 +29 kcal 19924 kcal ► VIEW
60 kg
132 lb		 +32 kcal 21735 kcal ► VIEW
65 kg
143 lb		 +34 kcal 23546 kcal ► VIEW
70 kg
154 lb		 +37 kcal 25358 kcal ► VIEW
75 kg
165 lb		 +39 kcal 27169 kcal ► VIEW
80 kg
176 lb		 +42 kcal 28980 kcal ► VIEW
85 kg
187 lb		 +45 kcal 30791 kcal ► VIEW
90 kg
198 lb		 +47 kcal 32602 kcal ► VIEW
95 kg
209 lb		 +50 kcal 34414 kcal ► VIEW
100 kg
220 lb		 +52 kcal 36225 kcal ► VIEW
110 kg
243 lb		 +58 kcal 39848 kcal ► VIEW
120 kg
265 lb		 +63 kcal 43470 kcal ► VIEW

* assuming 3 h/day standing, 230 workdays/year.

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FAQ

How reliable are these calorie estimates?
Very, because they're based on standardized MET values (Ainsworth 2011), not estimates. The seated office work value (1.3 MET) and standing light work (1.8 MET) are validated across hundreds of studies. Your exact burn depends on posture quality and movement, but the 29 kcal/h gap is a solid average.
Is 29 kcal/hour significant?
In isolation, no—it's about a cup of tea. But accumulated: 87 kcal/day × 230 days = 19,924 kcal/year, or 5.7 pounds. More importantly, Buckley 2015 shows that the metabolic benefit of standing comes from breaking sitting rhythm, not from calorie burn alone—sedentary interruptions matter.
What if I can't stand 3 hours daily?
Even 1 hour of standing daily (29 kcal/h = 6,670 kcal/year) adds up, and the research benefit (per Owen 2010, Healy 2008) applies at any frequency. Brief standing bouts throughout the day beat one long stationary period, because interrupting sitting is the key—not total duration.

REFERENCIAS

  1. Ainsworth BE, Haskell WL, Herrmann SD, et al. (2011). 2011 Compendium of Physical Activities: a second update of codes and MET values. Medicine & Science in Sports & Exercise, 43(8):1575–1581.
  2. Buckley JP, Hedge A, Yates T, et al. (2015). The sedentary office: an expert statement on the growing case for change towards better health and productivity. British Journal of Sports Medicine, 49(21):1357–1362.
  3. Healy GN, Dunstan DW, Salmon J, et al. (2008). Breaks in sedentary time: beneficial associations with metabolic risk. Diabetes Care, 31(4):661–666.
  4. Owen N, Healy GN, Matthews CE, Dunstan DW (2010). Too much sitting: the population-health science of sedentary behavior. Exercise and Sport Sciences Reviews, 38(3):105–113.