Calculators and quizzes
Put in your own numbers and get a plain answer. Calculator inputs are not saved or sent, and no email is required to use the calculators. The readiness quiz is free to finish and view results without email. It saves your answers in your browser session. If you choose the optional Readiness Starter signup, your email and quiz answers are sent; selected answers personalize your emails, as explained in the signup notice.
Calculator
Water Storage Calculator
People, days, pets and a hot-climate option turn into gallons to store and a count of containers.
Calculator
Power Sizing Calculator
List your devices with watts and hours. Get daily watt-hours and the battery station size to look for.
Calculator
30-Day Food Storage Calculator
Adults, children and days become planning calories and water for your household.
Quiz
Start Here Readiness Quiz
Five questions about water, food, power and your biggest worry. Your next steps for each gap.
New to all this? Start with Start Here. Some tools suggest gear we have looked at. Where a link earns us a commission, the page says so next to it. Full disclosure.