Free calculators
Real answers in seconds
Nine free calculators built on the same official sources as our guides. They run entirely in your browser: nothing you type is saved, sent or seen by anyone.
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Preparedness
Emergency kits, water, food rotation and pets.
Emergency water calculator
Gallons for your household and pets, how many containers that takes, what it weighs and when to replace it.
Open the calculator72-hour kit builder
An interactive emergency kit checklist that sizes quantities to your household. Check items off as you pack, then print it.
Open the calculatorFood storage calorie calculator
Add what's in your pantry from the Nutrition Facts labels and see roughly how many days of calories it covers for your household.
Open the calculatorHome & Moving
Moving timelines and year-round home care.
Money
Budgets, debt payoff, medical costs and school.
Small Business
Pricing, invoices, taxes, rentals and records.
House cleaning price calculator
Turn square footage, your own cleaning speed, labor cost and target margin into a per-visit price, profit and monthly revenue.
Open the calculatorQuarterly estimated tax estimator
A planning estimate of self-employment tax plus income tax at a rate you choose, split into quarterly amounts with due dates and safe harbor.
Open the calculatorTeam & HR
PTO, schedules, payroll hours and hiring.
PTO accrual calculator
See what one employee earns per pay period, how the balance moves through the year and what carries over under your caps.
Open the calculatorRotating shift calendar
Pick a pattern, a crew and a start date to preview the schedule on a calendar, with hours per workweek and average overtime.
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