Water Carry Calculator

Calculate how much water to carry between water sources based on distance, exertion, temperature, and elevation. Never run dry on the trail.

Results

Visualization

How It Works

Water weighs 2.2 lbs per liter (8.3 lbs per gallon). In moderate conditions, plan for 0.5-1 liter per hour of hiking. In extreme heat (>90F), increase by 50%. Always carry a 25% buffer — water sources can be seasonal or dry. A water filter lets you carry less by refilling at streams.