Hiking Calculators
Free hiking calculators: trail time estimator, pack weight limit, water intake per mile, calorie burn, elevation gain, and blister risk.
Tobler Hiking Function Calculator
Predict walking speed from terrain slope using the Tobler hiking function. Plan trail times accurately on mixed up-and-down terrain for any route.
Hiking Water Between Resupply Points Calculator
Calculate water needed between trail resupply points by distance, hiker weight, temperature, and difficulty. Returns liters, bottles, and water weight.
Hiking Calorie Burn Calculator
Calculate calories burned hiking based on your weight, distance, ascent, and pack weight. Uses MET values for accurate results.
Hiking Food Plan Calculator
Calculate how much food to pack for a backpacking trip. Based on days, calorie needs, and food weight. Never run low on the trail.
Hiking Pack Weight Calculator
Check if your backpack is the right weight for your body. The 10-20% rule explained. Calculate maximum safe pack weight for day hikes and overnight trips.
Hiking Water Needs Calculator
Calculate how much water to carry hiking. Based on duration, temperature, and exertion level. Prevent dehydration on the trail.
Naismith Rule Hiking Time Calculator
Estimate hiking time using the Naismith Rule: 1 hour per 5 km plus 1 hour per 600 m of ascent. Add correction factors for fitness, pack weight, and terrain.
Trail Difficulty Calculator
Calculate trail difficulty using the Shenandoah formula: Difficulty = √(2 × elevation gain (ft) × distance (miles)). Rate any trail Easy to Strenuous.