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Business Days CalculatorEstimate business days from calendar days and weekend days.Score 44daysworkingDays to Weeks CalculatorConvert days into weeks and months.Score 30daysNotice Period CalculatorEstimate notice-period end offset using calendar days, working-day adjustment, and handover buffer.Score 28workingdaysRamadan Countdown CalculatorCalculate days remaining to a target Ramadan date from current day number.Score 22daysAge CalculatorCalculate exact age in years, months, days, total days, and next birthday countdown.Score 16daysDate Difference CalculatorCalculate day, week, month, and year differences from total day counts.Score 14daysIP Subnet CalculatorCalculate subnet addresses and usable hosts from a CIDR prefix.Score 14workingProductivity Score CalculatorCalculate a productivity score from completed tasks, focus time, interruptions, and planned tasks.Score 12daysFasting Duration CalculatorCalculate fasting duration from suhoor/fajr offset and iftar/maghrib offset.Score 12daysFertile Window CalculatorEstimate fertile window and approximate ovulation date from cycle timing.Score 12daysDeadline CalculatorEstimate deadline offset from start day, duration, review buffer, and weekend/holiday adjustment.Score 8workingdaysMinutes to Hours CalculatorConvert minutes into hours and days.Score 4daysDeadline Buffer CalculatorCalculate remaining buffer days before a deadline.Score 4daysAbsenteeism Rate CalculatorCalculate absenteeism rate from absent days, employees, and scheduled workdays.Score 4daysTime to Fill CalculatorCalculate average time to fill open roles from total vacancy days and filled positions.Score 4daysJet Lag CalculatorEstimate jet lag adjustment days from time zones crossed and travel direction factor.Score 4daysPregnancy Due Date CalculatorEstimate days to due date from current pregnancy week and day.Score 4daysContract Duration CalculatorCalculate contract duration from months, renewal terms, notice period, and extension days.Score 4daysAppliance Energy CalculatorCalculate appliance energy use and cost from wattage, hours, days, and rate.Score 4daysLate Fee CalculatorCalculate late fee from unpaid amount, daily rate, grace period, and fixed penalty.Score 4days