Most hikers do well with about 0.5 liter per hour in mild weather and up to 1 liter per hour in heat, adjusting to thirst and sweat.

For hiking, plan to carry roughly 0.5–1 liter per hour, then add more for heat, steep climbs, or personal sweat rate.

On day hikes, plan roughly 0.5 L per hour in mild weather and up to 1 L per hour in heat or steep terrain.

For water while hiking, plan 0.5 liters per hour in mild weather and up to 1 liter per hour in heat, then adjust for sweat and terrain.

On most day hikes, drink 0.5 L per hour; in heat or steep climbs, plan 0.75–1.0 L per hour and add electrolytes on long efforts.

For hiking, plan roughly 0.5–1 liter per hour, then adjust for heat, pace, elevation, and refill access.

Hiking water needs: pack ~0.5 L per hour in mild weather; raise to 1 L+ per hour in heat, altitude, or intense climbs.

Plan about 0.25–0.5 liters of water per hiking mile, then adjust for heat, pace, climb, and your sweat rate.

For hiking, plan about 0.5–1 liter of water per hour, adjusting for heat, pace, elevation, and your sweat rate.

For hiking water needs, plan about 0.5 liters per hour in mild conditions, up to 1.0 liter during heat or steep climbs.