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Ramadan Countdown CalculatorCalculate days remaining to a target Ramadan date from current day number.Score 44daysremainingDays to Weeks CalculatorConvert days into weeks and months.Score 30daysBusiness Days CalculatorEstimate business days from calendar days and weekend days.Score 30daysRadioactive Decay CalculatorCalculate remaining quantity, initial quantity, half-life, or time for radioactive decay.Score 24remainingAge CalculatorCalculate exact age in years, months, days, total days, and next birthday countdown.Score 16daysPregnancy Due Date CalculatorEstimate days to due date from current pregnancy week and day.Score 16remainingdaysDate Difference CalculatorCalculate day, week, month, and year differences from total day counts.Score 14daysNotice Period CalculatorEstimate notice-period end offset using calendar days, working-day adjustment, and handover buffer.Score 14daysProductivity 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 12daysPercentage Grade CalculatorConvert earned marks to grade percentage and points remaining.Score 12remainingFertile Window CalculatorEstimate fertile window and approximate ovulation date from cycle timing.Score 12daysDeadline Buffer CalculatorCalculate remaining buffer days before a deadline.Score 8daysremainingPTO Accrual CalculatorCalculate accrued PTO hours, remaining PTO, and estimated payout value.Score 6remainingMinutes to Hours CalculatorConvert minutes into hours and days.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 4daysDeadline CalculatorEstimate deadline offset from start day, duration, review buffer, and weekend/holiday adjustment.Score 4daysContract Duration CalculatorCalculate contract duration from months, renewal terms, notice period, and extension days.Score 4days