Rock Climbing Calories Burned Calculator
Written by Thierno Sadou Diallo, formula verified per our methodology • Last checked on 9/5/2026
Low-to-moderate difficulty climbing burns about 5.8 MET, versus 7.3 MET for high-difficulty routes. For a 70 kg person climbing for an hour on easy to moderate routes, that's about 406 kcal.
Explanation
Climbing intensely engages upper-body, forearm, and core strength, in a way quite different from a classic cardio activity like running or cycling: a large share of the effort involves holding sustained muscular tension rather than a repeated cyclic movement. The difficulty of the routes climbed directly affects this expenditure: easy to moderate routes, with large holds and undemanding moves, reach 5.8 MET, while high-difficulty routes, which demand intense grip strength and body positions that heavily engage stabilizing muscles, rise to 7.3 MET. These values typically include rest phases between routes (belaying, recovery), already folded into the average measured over a full session rather than only the moments actively spent climbing. As with the other calorie calculators on this site, the result remains an estimate based on average MET values: climbing style (bouldering, sport routes, overhangs), technical level, and individual fitness all make the real expenditure vary. See also our one-rep max calculator to gauge the raw strength that underpins this kind of effort, or our elevation gain calculator for another activity measured by vertical progress rather than horizontal distance.
Example for a one-hour session of easy to moderate routes
Inputs
Weight: 70 kg. Duration: 1 hour. Difficulty: low to moderate (5.8 MET).
Calculation
Calories = 5.8 × 70 × 1 = 406 kcal.
Result
An hour of climbing on easy to moderate routes burns about 406 kcal for a 70 kg person.
Frequently asked questions
Why does route difficulty change energy expenditure so much?
Because a difficult route demands far more intense muscular tension in the forearms, fingers, and core, often held longer on each move, and generally involves less passive recovery time between efforts than an easy route.
Does time spent belaying a partner count in this calculation?
The values used here correspond to a typical climbing session, with belaying and breaks folded into the average. If you spend a large share of the session only belaying without climbing yourself, the real expenditure will be lower than this estimate.
Does this estimate work equally well for bouldering and roped indoor climbing?
This calculator uses generic climbing values that don't precisely distinguish bouldering (short, intense efforts with more rest between attempts) from roped indoor climbing (more continuous efforts). High-level bouldering generally lands closer to the high-difficulty value, while a continuous route session at a moderate level fits the low-to-moderate value better.