Calendar Calculator: Add or Subtract Days, Weeks, Months
Perform advanced calendar math: add or subtract years, months, weeks, and days from any date.…
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Business Days Calculator: Count Work Days & Exclude Holidays
Calculate the number of business days between two dates. Exclude weekends and custom holidays. Perfect…
Birthday Calculator: Next Birthday Countdown & Stats
When is my next birthday? Find out your next birthday day of week, days remaining,…
BC to AD Calculator: Convert Years & Eras
Convert years between BC (BCE) and AD (CE). Understand the Year 0 historical rules and…
Baby Age Calculator: Weeks, Days & Milestones
Calculate your baby's age in weeks and days, months and days, or total days. Track…
Anniversary Calculator: When Is My Next Anniversary?
Find your next anniversary date, see how long you've been together, and get a list…
Age Difference Calculator: Compare Two Ages
Compare the age difference between two people. Find out who is older and by exactly…
8-Hour Shift Calculator: Calculate End Time & Paid Hours
Calculate exact shift end time, paid work hours, and overtime. Supports custom breaks, timezones, and…
Weight Loss Percentage Calculator – Track Your Progress
Calculate your weight loss percentage to track fitness progress accurately. Compare results over time regardless…
Waist to Hip Ratio Calculator – Assess Health Risk
Calculate your waist to hip ratio (WHR) to assess cardiovascular and metabolic health risks. Simple…