Everyday & Pets Calculators
Handy tools for everyday questions, including your pets.
Age Calculator
Calculate exact age in years, months, and days from any birth date.
Days Between Dates Calculator
Calculate the exact number of days, weeks, or business days between any two dates.
Date Calculator
Find the years, months, and days between two dates, or add and subtract days, weeks, months, and years — with US, EU, and ISO date formats and ISO week numbers.
Time Calculator
Add and subtract time in days, hours, minutes, and seconds, apply time to a date, or evaluate an expression like 1d 2h 3m + 4h.
Time Duration Calculator
Find the length of time between a start and end time, including spans that cross midnight, or between two full date-times.
Hours Calculator
Work out hours worked in a day from a start and end time, with break deduction, decimal hours for payroll, and rounding.
Time Card Calculator
Build a weekly timesheet with in/out times, breaks, overtime, and an hourly rate to get total hours and gross pay.
Tip Calculator
Calculate tip amount, total bill, and per-person split.
Percent Off Calculator
Calculate your discount amount and final sale price, including stacked discounts.
Air Fryer Conversion Calculator
Convert oven temperature and time to air fryer settings, with the formula shown and an adjustment for basket-style vs. oven-style air fryers.
Fabric & Sewing Calculator
Calculate fabric yardage, waste/seam allowance buffer, and total cost in one tool.
Gas Mileage (MPG) Calculator
Work out your car's real fuel economy in MPG, L/100km, and gallons per 100 miles, averaged across as many fill-ups as you log.
Dog Age Calculator
Find your dog's age in human years, adjusted for breed size.