Camping & Outdoors
Calculators for hikers and campers: hiking time, trail water and calories, backpack weight, sleeping bag rating and land-nav pace count, so you plan trips safely.
Backpack Weight Calculator
Find a recommended maximum pack weight from your body weight. See your pack as a percent of body weight and whether it sits within the limit.
Hiking Time Calculator
Estimate how long a hike will take with Naismith's rule. Enter distance, elevation gain and pace to get total walking time in hours and minutes.
Hiking Water Calculator
Work out how much drinking water to carry on a hike. Enter your hours and conditions to get total liters and ounces to pack for the trail.
Pace Count Calculator
Convert between distance and paces for land navigation. Enter your pace count per 100 m to find total paces for a distance, or distance from paces.
Sleeping Bag Rating Calculator
Find a recommended sleeping bag temperature rating from the expected overnight low. Adds a safety margin based on whether you sleep warm or cold.
Trail Calorie Calculator
Estimate calories burned hiking using MET values. Enter your weight, hours and effort to see kilocalories burned on the trail. Free and private.