Life-threatening emergency? Call 911.GSS is not an official alerting authority, always follow official warnings.
GSS Family Survival shield logoGSS FAMILY SURVIVAL

SURVIVAL CALCULATORS

Plan with real numbers

Planning estimates only. Adjust for your household's medical needs, climate and official guidance.

DRINKING WATER

6 gal

22.7 liters

Baseline: 1 gallon per person per day for drinking (pets ~½ gallon, a planning estimate). You'll need more for cooking, hygiene, hot climates, illness, nursing mothers and children.