Research-based calorie estimator for bouldering sessions. Accounts for climbing grade, wall angle, rest time, and intensity. Based on the 2024 Compendium of Physical Activities.
Active Calorie Burn
211–317
exercise calories (kcal)
240
Climbing
+24
Afterburn
8.9
kcal/min
Climbing 27 min
Resting 63 min
+147 kcal baseline during rest
Range reflects ~20% individual variation in metabolic efficiency
Climber
70kg
Session
1h 30m
70%
Typical: 65-75%
Terrain & Effort
Straight up (~0°)
6/10
Subjective effort. Scales calories by 0.85x to 1.15x