Time Calculators | CalculationTime

Time & DateAge CalculatorCalculate age from a birth date to a chosen date, with years, months and days shown clearly.Math & MeasurementArea CalculatorCalculate rectangular area from length and width, with measured area, planning allowance, unit-basis notes and a printable quote, classroom or job record.Home, Trade & ConstructionAsphalt CalculatorEstimate asphalt tonnage from paving length, width and compacted depth, with cubic yards, short tons, metric tonnes, waste allowance, cost estimate and a printable paving quote note.Percentage & MathAverage CalculatorCalculate the mean, median, mode and range of any list of numbers in a live sandbox - add or remove values freely and every statistic updates instantly, with a printable custom report and a standalone statistics reference sheet.Work, Payroll & TimeBiweekly Pay CalculatorCalculate gross biweekly pay from hourly rate, regular hours, overtime hours and optional pretax deductions, with clear pay-period assumptions and a printable payroll worksheet.Work & PayrollBusiness Days CalculatorCount weekday business days between two dates, with optional start-date and end-date inclusion controls.ConversionsCentimetres to Feet and Inches CalculatorConvert centimetres to feet and inches for height records, product dimensions, cut notes and classroom worksheets.Money EducationCompound Growth CalculatorProject repeated percentage growth from a starting value and turn the full compounding path into a visible period-by-period story.Trade & ConstructionCountertop Square Footage CalculatorCalculate countertop square footage from length and depth, add backsplash area, subtract cutouts, apply waste allowance and print a quote-ready measurement record.Time & DateDate CalculatorAdd or subtract calendar days from a start date using clear Gregorian calendar arithmetic.Time & DateDays Between Dates CalculatorCalculate elapsed days between two calendar dates, with inclusive-date options, weeks-and-days breakdown and a printable date-span record.Science & Everyday MathDensity CalculatorCalculate density from mass and volume, with g/mL, g/cm³, kg/m³ and lb/ft³ cross-checks, uncertainty range, unit-basis notes and a printable lab, material or classroom density record.Math & PercentagesDiscount CalculatorCalculate sale price, discount amount and optional tax from an original price and discount percentage, with a printable sale-tag, coupon or quote check.Time, Distance & FitnessDistance CalculatorCalculate distance from average speed and elapsed time, with mile, kilometre, metre, pace and printable trip or classroom record outputs.Work & PayrollDouble Time CalculatorCalculate double-time pay from regular hours, double-time hours, base hourly rate and optional extra gross pay, with a printable payroll record.ConversionsFeet and Inches to Centimetres CalculatorConvert feet and inches directly into centimetres, metres and total inches with the exact international-inch basis and a printable height or measurement record.ConversionsFeet and Inches to Metres and Centimetres CalculatorConvert height, product dimensions or building measurements from feet and inches into metres and centimetres using the exact international inch definition and a printable measurement record.Percentage & MathFraction CalculatorAdd, subtract, multiply or divide two fractions, reduce the answer to simplest form, show the mixed number and decimal check, and print a classroom or measurement worksheet record.Finance & EverydayFuel Cost CalculatorEstimate trip fuel cost from distance, fuel economy, fuel price and optional tolls or parking, with litres and gallons shown clearly.Percentage, Math & Everyday ArithmeticGCF CalculatorFind the greatest common factor of two or three whole numbers, with Euclidean-algorithm steps, factor-list checks, LCM relationship, classroom wording and a printable arithmetic worksheet record.Study & SchoolGrade Percentage CalculatorTurn points earned and points possible into a percentage score, with an example letter band and clear extra-credit notes.Work & PayrollHourly Rate CalculatorConvert annual salary or project fees into transparent hourly rates using entered work hours.Time, Work & PayrollHours Between Times CalculatorCalculate hours between two clock times, including overnight spans, unpaid breaks, decimal-hour output, rounded hours, gross-value notes and a printable shift, appointment, classroom or job-time record.Time & DateHours to Decimal CalculatorConvert hours, minutes and seconds into decimal hours for timesheets, payroll checks and project logs.Home, Trade & ConstructionInsulation CalculatorEstimate insulation area, batt or roll count and material cost from wall, ceiling or floor measurements, with opening deductions, waste allowance, coverage per pack and a printable homeowner, tradie or classroom job note.Percentage, Math & Everyday ArithmeticLeast Common Multiple CalculatorFind the least common multiple of two or three whole numbers, with prime-factor notes, common-multiple checks, classroom wording and a printable arithmetic worksheet record.BusinessMeeting Cost CalculatorEstimate the labour cost of a meeting from attendee count, average hourly cost, meeting length and preparation time.ConversionsMetres and Centimetres to Feet and Inches CalculatorConvert metric lengths from metres and centimetres into feet and inches using the exact international inch definition.Time & WorkMilitary Time CalculatorConvert regular 12-hour clock time to military time and 24-hour time, with minutes, decimal-hour cross-checks, shift-note context and a printable time-conversion record.Time & DateMinutes to Decimal Hours CalculatorConvert minutes into decimal hours for timesheets, billing, payroll prep and classroom checks, with rounding kept separate from the raw answer.FinanceMortgage CalculatorEstimate a US-style monthly mortgage payment with principal and interest, property tax, home insurance, PMI and HOA shown separately for a clearer house-buying budget.Work & PayrollOvertime CalculatorSplit one shift into regular time and overtime, deduct unpaid breaks, and estimate gross pay from a base rate and overtime multiplier.Time, Distance & FitnessPace CalculatorCalculate pace per mile and per kilometre from distance and finish time for running, walking, cycling, race planning and printable training records.Trade & ConstructionPaint Coverage CalculatorEstimate paint quantity from wall length, wall height, openings, coats, coverage rate and waste allowance, with a printable room-painting record.Math & PercentagesPercent Off CalculatorCalculate the sale price, amount saved and optional tax total when a percentage is taken off an original price.Percentages & Everyday MathPercentage CalculatorCalculate a percentage of a number, what percent one value is of another, and percentage change in one clear worksheet with a printable calculation record.MathPercentage Change CalculatorFind the percentage increase or decrease between an original value and a new value, with baseline sensitivity, visual proof and a printable comparison record.MathPercentage of a Number CalculatorCalculate a percentage of any number, with the amount, remaining value and printable working shown clearly.MoneyPresent Value CalculatorDiscount a future amount back to today using an annual rate, time horizon and compounding frequency.Percentage & MathProbability CalculatorCalculate probability from favourable outcomes and total outcomes, then show odds, complement probability, repeated-trial chance and a printable classroom or risk-note record.FinanceRefinance CalculatorCompare an existing loan with a refinance offer using payment, monthly saving, closing costs and break-even month.Percentage & MathRounding CalculatorRound a number to decimal places or a chosen increment, with nearest, up and down modes, formula notes and a printable rounding-rule record.Time, Work & PayrollSalary CalculatorConvert annual salary into monthly, biweekly, weekly, daily and hourly gross equivalents, with paid-week and weekly-hour assumptions, unpaid-hours comparison and a printable job-offer or pay-review worksheet.Time, Distance & FitnessSpeed CalculatorCalculate speed from distance and time, with miles per hour, kilometres per hour, metres per second and pace kept visible for travel, sport, classroom and job records.TradesSquare Footage CalculatorCalculate square feet, square yards and square metres from length and width, with a practical waste allowance for flooring, decking, sheet goods and room measurements.Percentage & MathSquare Root CalculatorFind the principal square root of a number, its square check and an optional rounded classroom or worksheet result.Work & PayrollTime and a Half CalculatorCalculate time-and-a-half pay from regular hours, time-and-a-half hours, base hourly rate and optional extra pay, with the formula and printable payroll note kept visible.Time & DateTime CalculatorAdd or subtract time durations and see the result normalised into days, hours, minutes and seconds.Time, Work & PayrollTime Card CalculatorTotal a weekly time card from daily hours, unpaid breaks, overtime threshold and hourly rate, with regular/overtime split, gross-pay estimate and a printable work record for payroll prep, invoices and classroom examples.Time & DateTime Duration CalculatorCalculate the hours and minutes between two times, including overnight spans.Time & DateTime Until CalculatorCalculate the exact time until a target date and time from an editable current date and time.Time & DateTime Zone CalculatorConvert a clock time between two UTC offsets, check date rollover and prepare a printable meeting-time record with the assumptions kept visible.Percentage & MoneyTip CalculatorCalculate a restaurant tip, final bill total and per-person split from the bill amount, tip percentage, tax and party size.Everyday MathUnit Price CalculatorCompare two package prices by price per unit, with the cheaper option, unit-price gap and printable shopping, classroom or supplier quote note shown clearly.Time & DateWeek Number CalculatorFind the ISO week number, ISO week-year and weekday for a calendar date, with a simple year-boundary explanation.Study & SchoolWeighted Average CalculatorCalculate a weighted mean from values and weights for grade categories, credits, survey scores, index components and spreadsheet checks, with contribution lines, total-weight warnings and a printable weighted-average worksheet record.Time & DateWork Hours CalculatorWork out paid hours from start time, finish time and unpaid break minutes.