25+ free calculators for training, safety, and climbing decisions
Convert between V-scale, Yosemite Decimal, and Fontainebleau grading systems.
Calculate rope needs, rappel options, and pitch requirements.
Training zones from age and resting/max heart rate.
Calculate fall impact force, rope elongation, and safety margins.
Optimal warmup time based on conditions and target grade.
Assess your climbing strength level: beginner to elite.
Estimate chalk use per session and refill frequency.
Calories burned during climbing based on intensity.
Water intake requirements for climbing in heat and altitude.
Estimate rest needed between hard climbing sessions.
Wind chill, frostbite risk, and clothing layers.
Number of bolts needed for sport routes.
Find your harness size from measurements.
Rope friction recommendations for different conditions.
Hangboard loading and progression timelines.
Training splits for redpoint goals.
Estimate rack weight for any route.
Anchor forces and equalization calculations.
Camalot sizes and rack costs for trad routes.
AMS risk and acclimatization days for altitude.
Rest placement strategy for multi-pitch crux pitches.
Climbing shoe sizing recommendations.
Difficulty factor for steep climbing angles.
Carabiner strength and safety margins.
Helmet impact protection assessment.