Calculators & Knowledge for the Outdoors

Choose your outdoor discipline:

CLIMBING
BOULDERING

MOUNTAINEERING
WALKING

CYCLING
MTB & ROAD BIKE

SKIING
SKI TOURING

RUNNING
TRAINING

Climbing & Bouldering

Climbing Grades
Converter

Climbing Shoes
Size Guide

Ape Index

Impact Force
Climbing Fall

Fall Factor

Via Ferrata
Grades

Slacklining
Forces

Mountaineering & Walking

High Altitude
Conditions

Cycling, MTB & Road Bike

Bicycle
Tyre Pressure

Road Bike
Tyre Pressure

Cycling Wattage &
Power-to-weight ratio

Sweat Rate

Skiing & Ski Touring

Munter
Avalanche Method

Running, Fitness & Training

Nordic Walking
Pole Size

Hydration
Requirement