Calculator Directory
Everyday Calculators
Everyday calculation tools for dates, time spans, and practical planning.
Available tools7 live
Age Calculator
Calculate exact age in years, months, and days from a date of birth to today or any selected date.
Date Difference Calculator
Calculate the time between two dates in calendar years, months, days, total days, and weeks.
Business Days Calculator
Count working days between dates while excluding selected weekends and holiday dates.
Work Hours Calculator
Calculate gross and net shift time, subtract breaks, and separate regular and overtime hours.
Time Duration Add/Subtract Calculator
Add or subtract hours and minutes from a date and time, including date rollover.
Time Zone Difference Calculator
Compare city time zones, current UTC offsets, meeting conversions, and availability overlap.
Percentage Calculator
Calculate percentages, percentage change, and original values with reverse percentages.
Practical tools for percentages, dates, schedules, and personal planning
These calculators help with common tasks such as working out percentages, finding an exact age, counting workdays and shift hours, comparing time zones, and planning deadlines or calendar milestones.