Free Tools
Interactive calculators built for camping, hiking, and the outdoors for beginners. No sign-up, no downloads — enter your numbers and get an answer you can act on.
Hiking Time Calculator
Estimate how long a hike will take using Naismith's rule, based on distance and total ascent.
Hiking Water Calculator
Figure out how many liters and bottles of water to carry for a hike, adjusted for hot weather.
Camp Stove Fuel Calculator
Work out how many grams of canister gas your trip needs and which canister size to bring.