First Camp

How much water per person for camping?

For a simple trip where you must bring your own water, start with one gallon (about four liters) per person per day—then increase it for heat, strenuous activity, pets, cooking, and washing.

Quick answer: people × days × 1 gallon

Two people camping for three calendar days need a baseline of six gallons. Do not count an unverified stream, spring, or campground tap until the managing agency confirms that it is available and potable.

Camping water calculator

6 gallonsBaseline for two people over three days.

What the gallon includes

Treat the baseline as the group's total starting supply for drinking and simple camp use, not a promise that it will fit every itinerary. Cooking water, dishwashing, unusually hot weather, long hikes, illness, children, and pets can raise the total. If the campground has reliable potable water, you can carry smaller containers and refill them—but verify before leaving home.

Important: water from lakes and streams can contain disease-causing organisms even when it looks clean. Follow current treatment guidance and local warnings; some contaminants cannot be made safe with an ordinary backpacking filter.

How to carry it

Sources

The 50% hot-weather option is a conservative First Camp planning buffer, not a universal agency formula. Adjust for the destination and the needs of your group.

Build the rest of your trip plan.

Use the free First Camp planner for a dated checklist and gear list.