Water Carry & Planning Calculator

Hike Segment Details

Estimate water needs for one segment of your hike (e.g., between known water sources). Results update automatically.

Segment Distance

Segment Elevation Gain

Est. Time (Hours)

Avg. Temperature

Exertion Level

Est. Humidity

Personal Sweat Factor

Safety Buffer

(Liters or %)

Estimated Water Needs for Segment

0.0 Liters

0 fl oz / 0 qt US Fluid Oz / Quarts

~0 x 1L / ~0 x 0.5L Bottle Equivalents

0.0 Est. Liters per Hour

Disclaimer: This calculator provides a rough estimate only. Actual water needs vary greatly based on individual physiology, fitness, acclimatization, humidity, wind, sun exposure, elevation, specific trail conditions, and more.

Formula uses a base rate adjusted for time, temperature, exertion, elevation gain rate, and humidity.
Always carry more water than you think you need, especially in hot, dry, or remote conditions.
Learn to recognize signs of dehydration. Plan water sources carefully and treat water appropriately.