Hiking & Trail Calculators
Free, easy-to-use hiking calculators built on trusted outdoor science. Calculate calories, backpack weight, hiking time, and trail food with confidence.
Calories & Energy Burn
Uphill Hiking Calories
Calculate calories burned on uphill trails and mountain climbs based on hill steepness, elevation gain, hiking speed, and backpack weight.
Downhill Hiking Calories
Calculate calories burned walking downhill, accounting for gravity assistance and the effort your leg muscles use to brake each step.
Backpack Weight Calories
See how carrying a 10, 20, 30+ lb backpack increases your calorie burn, and how heavier packs demand more effort.
Calories by Distance
Calculate calories burned hiking 3 miles, 5 miles, 10 miles, or any custom distance, with easy adjustments for hills and pack weight.
Backpacking Calories
Estimate calories burned on wilderness backpacking trips carrying 30 to 50 lb packs over rugged backcountry trails.
Rucking Calories
Calculate calories burned walking with a weighted backpack or weighted vest on roads and trails.
Hiking vs Walking
Compare calories burned hiking on uneven trails and hills against walking on flat paved ground for the same person, speed, and time.
Trail Pace, Climb & Distance
Hiking Time & Pace
Estimate how long your hike will take based on trail distance, uphill climbs, descents, and rest breaks.
GPX Route Calories
Upload any trail GPS file (.gpx) to calculate calories burned section by section, processed privately right in your browser.
Elevation Gain & Slope
Calculate total uphill climb, downhill descent, and trail steepness percentage to see how hills affect your hiking effort.
Trail Slope & Steepness
Convert hill climb height and trail distance into percent steepness (grade %) and slope angle in degrees.
Hiking Pace & Splits
Calculate your hiking speed, minutes per mile, and estimated arrival times for each mile of your hike.
Trail Food & Multi-Day Trips
Hiking Food Planner
Turn your burned calories into a practical snack list of energy bars, nuts, dried fruit, and meals, complete with total food weight to pack.
Multi-Day Trekking
Plan multi-day backpacking trips with day-by-day calorie estimates, taking into account how your pack gets lighter as you eat your food.
Backpacking Food Weight
Convert your daily calorie needs into total food weight in pounds and ounces based on how calorie-dense your snacks and meals are.
Reference Guides & Tables
Hiking & Walking Effort Ratings Table
Searchable table of hiking, walking, and backpacking effort levels with real-time calorie burn estimates for your body weight.
Hiking Calorie Burn Reference Charts
Simple calorie tables across body weights (120–240 lbs / 55–110 kg) and hike times (30 min to 8 hours) with easy lb/kg switching.
Total vs. Active Calories Guide
Clear guide explaining why Apple Watch, Garmin, and Strava show different calorie numbers, and how to avoid overeating on the trail.
Calculation Methods & Formulas
Clear explanations of the formulas used on Hiking Calorie Calculator, including backpack weight, downhill walking, and trail pace equations.
Looking for the All-in-One Trail Calculator?
Our main calculator lets you estimate calories, adjust for hills and backpack weight, or upload a GPX trail file all in one place.