Ultimate Survival Calculator

People

Target runway

days

Scenario

Units

View

Calories/person/day

Water/person/day

gal

Plan date

Grow zone

Rainfall/month

System Runway 0 days Waiting for data

Readiness 0% Target unknown

Food 0 days 0 kcal stored

Nutrition 0 days Macros pending

Water 0 days 0 gal stored

Power 0 days 0 kWh/day

Livestock Feed 0 days 0 lb stored

Next Expiration None Inventory clear

What Should I Do Next?

Field Checklist

Five actions to use when the day is busy

More Next Steps

Simple Order

Plan Control

Trust Warnings

Sample Plans

Assumption Confidence

Data Completeness

Medical & First Aid

Comms & Information

Labor & Skills

Apply Sample Plan

Audit Log

Runway Timers

Priority Actions

Runway Balance

Monthly Water Outlook

Expiration-Aware Depletion Forecast

Readiness Review

Target Coverage

Nutrition Balance

Resupply Gaps

Critical Systems Audit

Life Safety Audit

Critical thresholds, failure modes, labor, and source-backed assumptions

Primary local hazard

Leave / shelter trigger

Critical Thresholds

Plan Breakers

Labor Budget

Minimum Viable Survival

Medical Continuity

Reference Assumptions

Immediate Hazard Checklist

Fire, combustion, temperature, waste, and local hazards

Inventory Batches

Item	Category	Qty	Unit	Calories/unit	Protein g/unit	Fat g/unit	Daily use	Expires	Condition

Crop Plan

Cultivated area

sq ft

Soil quality

Season extension

Irrigation efficiency

Organic matter

Compost on hand

cu yd

Compost strength

Cover crop coverage

Mulch coverage

Crop	Area	Yield/sq ft	Unit	Calories/unit	Water/wk	Days	Preserve %	Feed %	Last crop	Same bed yrs

Soil Health & Nutrients

Crop Rotation Plan

Animal Husbandry

Animal	Count	Feed/day	Water/day	Output	Calories/day	Breeding cycle

Land & Space

Shelter, run, pasture, and stocking pressure

Total usable land

Pasture / browse

Forage yield

AUM/ac

Grazing season

Built shelter

sq ft

Runs / dry lots

sq ft

Rotation paddocks

Feed / tool storage

sq ft

Animal Space Plan

Space Suggestions

Property Map

Property width

Property depth

Downhill flow

Prevailing wind from

Site Layout

Design Review

System	Type	X	Y	Width	Depth	Zone	Notes

Sanitation & Governance

Public health, ration rules, and scarcity behavior

Governance Checklist

Score Components

Sanitation Escalation

Governance System

Historical References

Behavior Watchlist

Water System

Stored potable water

gal

Tank capacity

gal

Catchment area

sq ft

Catchment efficiency

Rainfall pattern

First flush / storm loss

Filter capacity

gal/day

Graywater reuse

Treatment consumables

days

Electrical Loads

Solar array

Peak sun hours

System loss

Battery capacity

kWh

Usable battery

Inverter efficiency

Conservative solar yield

Inverter continuous output

Generator fuel

gal

Generator yield

kWh/gal

Load	Qty	Watts	Hours/day	Start surge	Priority

Process Guides

Calculator-aware field procedures

Permaculture Templates

Starter sustainability loops for the property map

Operations

Meal Plan

Meal	Servings	Uses/week	Calories	Protein g	Fat g	Inventory draw

Preservation Log

Batch	Method	Qty	Unit	Date	Shelf life	Calories/unit

Seed Viability

Crop	Variety	Year	Seeds	Viability %	Planting window

Breeding Calendar

Animal	Breeding date	Gestation/incubation	Expected date	Notes

Maintenance

Task	System	Interval	Last done	Next due	Parts

Material Flow Ledger

Inventory, harvests, preservation, feed, meals, output, and expiry

Failure Simulator

Failure

SOP Binder

Operational Resilience

Red-team drills, vulnerable profiles, decision cards, community, shelters, and stale-plan checks

Red Team Mode

Decision Cards

Vulnerable Profiles

Name	Need	Daily support	Med days	Power	Mobility

Community Contacts

Name	Role / Skill	Distance	Comms	Mutual aid

Known Shelters

Shelter	Type	Distance	Direction	Capacity	Status	Source

Shelter Finder Notes

Continuity & Documents

Training, Morale & Confidence Decay

Communications

Emergency bands, radio plan, check-in windows, licensing, and safe operating practices

Emergency Band Reference

Safe Comms Practices

Radio Channel Plan

Name	Band	Frequency / Channel	Use	License	Notes

Comms Checklist

Message Discipline

Official References

Security & Accountability

Lawful inventory, safe storage, de-escalation, training freshness, and accountability

Defensive Tools

Tool	Type	Qty	Storage	Condition	Last checked

Ammunition Accountability

Caliber / Gauge	Qty	Lot / Label	Storage	Condition	Last inspected

Security Checklist

Non-Lethal & Hardening

De-Escalation Rules

Never Do

CBRN Planning

Conservative shelter, contamination, and radiation planning references

Radiation reference

Shelter protection factor

Outside dose rate

mSv/hr

Shelter duration

Sealed water

days

Sealed food

days

Air control

Radiological Dose & Attenuation

CBRN Readiness Checks

Material Shielding Stack

Layer	Material	Thickness	HVL	HVL count	Transmission

Material Penetration

Action Guides

Dose & Material Reference

Planning Calendar

Equations & Assumptions

Planning math used by the calculator

Local Advisor

Planning question

Download & Run Offline

Self-contained bundles for local use

macOS

Download, unzip the whole folder, then open Open Ultimate Survival Calculator.command or open index.html in a browser.

Download macOS

Windows

Download, right-click the zip, choose Extract All, then run Open Ultimate Survival Calculator.bat. Do not open the app from inside the compressed zip.

Download Windows

Linux

Download, unzip the whole folder, then run open-ultimate-survival-calculator.sh or open index.html in a browser.

Download Linux

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Install Notes

No install required

Ultimate Survival Calculator is a static offline web app. Extract the full bundle first so index.html, app.js, and styles.css stay together.

Back up your plan

Your data is stored in the browser you use. Use Export Plan regularly and keep a backup JSON file.

Hosted offline mode

When opened from an HTTPS website, Ultimate Survival Calculator caches the app shell after first load so it can reopen offline.

Verify Downloads

SHA-256 checksumsUse this file to verify downloaded zip archives were not corrupted.

Checksums

Web hosting folderSite owners should upload the generated dist/web folder.

Static

About Ultimate Survival Calculator

Free, portable, and built for practical readiness

Ultimate Survival Calculator was created to make serious preparedness planning more understandable, connected, and accessible. It brings food, water, power, agriculture, livestock, sanitation, communications, safety, and long-term resilience into one local-first planning system.

How It Was Created

Human expertise, assisted by advanced AI

The platform was developed with the assistance of leading, sophisticated AI models under the direction of a career Security and AI Engineer with a professional background in Homeland Security and membership in The American Civil Defense Association (TACDA).

Why It Is Free

Preparedness should be accessible

This tool is made freely available in the creator's sincere hope that it will help as many individuals, families, and communities as possible prepare before emergencies and make clearer decisions in times of need.

Local First Your plan stays with you

Core calculations work without a cloud account, and personal planning data remains in the user's browser.

Transparent Assumptions are visible

Equations, limitations, confidence labels, and reference links are exposed for review.

Practical Actions over theory

Runways, warnings, calendars, guides, and checklists turn entered information into next steps.

Free Access Available to everyone

The hosted calculator and portable offline bundles are offered without charge.

“With resolute defiance, we now choose to grasp at the delicate thread of life.”