Calculators and planners

Wondering how much water to store, how long a battery might last, or whether a bag is too heavy? Start with that question below. The tools run in your browser and do not send your entries to ReadyLience. Their estimates help you plan; they are not guarantees or safety checks.

Start with the question you need to answer

Browse every calculator and planner

• Food Preservation & DehydrationDehydration Batch Log and Yield Cost CalculatorRecord a home-dehydration batch, calculate measured weight yield and entered cost, and keep method, equipment, package, and inspection details auditable.
• Water Storage & FiltrationEmergency Water Storage Calculator for HouseholdsCalculate a transparent emergency water-storage baseline, add household-defined needs, and turn the total into an accessible container and rotation plan.
• Evacuation & Bug-Out BagsGo-Bag Weight and Capacity PlannerCompare a household's chosen carry capacity with the real weight of personal, shared, and optional go-bag items without claiming a universal safe limit.
• Insurance Inventory & RecoveryHome Inventory Coverage Worksheet: Record Scope, Not Insurance CoverageUse a private browser-only worksheet to track broad home-inventory record scope and review triggers without entering values, policy details
• Financial Emergency PreparednessHousehold Emergency Expense Planning WorksheetUse a browser-only worksheet to total broad household expense categories for a week, month, or disruption event without storing personal financial information.
• Emergency Food StorageHousehold Emergency Food Quantity CalculatorTurn your household's own meal choices into a transparent count of meal and snack slots for a three-day or two-week food reserve.
• Off-Grid Living BasicsOff-Grid Daily Water, Energy, and Waste PlannerCompare entered water, energy, and sanitation quantities for a short stay without treating arithmetic or checked boxes as safety approval.
• Emergency Food StoragePantry Rotation Planner for a Practical Household ReserveBuild a private printable card for normal pantry use, protected food, label checks, and the next review without treating a date as a food-safety verdict.
• Backup Power SystemsPortable Power Station Runtime CalculatorEstimate battery runtime from watt-hours, usable capacity, and continuous load, then adjust the result for inverter losses, startup surges, temperature
• Small Space & Apartment LivingSmall-Space Preparedness Storage Map: A Private Printable ToolMap four household storage zones for immediate access, exit-side carry items, stay-at-home supplies, and seasonal rotation without listing private inventory.
• Small Space & Apartment LivingSmall-Space Reserve Fit Planner for Household SuppliesMeasure one shelf or cabinet and compare the space your emergency supplies need. Then check the arrangement, access, and weight limits in the real room.

What these tools will not do

A calculator can turn watts and hours into watt-hours. It cannot measure your equipment, know how long a person can go without treatment, or account for the condition of a battery you have not tested. Where a number carries real consequence — medical devices, heating, medication — the figure that matters comes from a clinician, a manufacturer, or a documented measurement, and the guide around each tool says so.

Treat the output as the start of a decision, then verify it against your own equipment before you depend on it.