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Mean, Median & Mode CalculatorFree Mean, Median & Mode Calculator. Enter a list of numbers to instantly find the average, median, mode, sum, count and range of your data set.Formula
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Julian–Gregorian Calendar Date Conversion CalculatorConvert any date between the proleptic Julian and Gregorian calendars via the Julian Day Number. Supports AD/CE and BC/BCE eras with exact integer math.Formula
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Easter Date and Related Movable Feasts CalculatorCalculate the date of Easter Sunday for any year 1583-4099: Western (Gregorian) and Eastern (Orthodox) Easter plus Lent, Pentecost and other movable feasts.
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Sofa Size CalculatorFind the ideal sofa width for your room. Enter room width and seat width to get recommended couch size, seat count, and remaining clearance.Formula
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How Many Tables CalculatorFind out how many tables you need for any event. Enter guest count and seats per table to instantly get tables needed, total seats, and empty seats.Formula
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Sunglasses Size CalculatorCalculate sunglasses frame width from lens, bridge and temple measurements, then check the fit against your face width in millimeters.Formula
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Tipsy Drink Amount CalculatorEstimate how much of a drink (by ABV and your body weight) to reach and hold a pleasant tipsy buzz for N hours. Novelty estimate only — not a legal/medical limit.Formula
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Sock Size CalculatorConvert your US shoe size to the right sock size. Enter men's or women's shoe size to get the matching small/medium/large sock range.Formula
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Jeans Size CalculatorFind your jeans size from waist and inseam measurements. Get your W x L (US/UK) plus the approximate EU waist size in inches or centimeters.Formula
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Jacket Size CalculatorConvert your chest measurement to a US/UK and EU jacket size. Enter chest in inches or cm to find your suit, blazer, or coat size instantly.Formula
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Hat Size CalculatorConvert your head circumference (inches or cm) into a US fitted hat size and EU size instantly. US size = circumference ÷ π, rounded to 1/8.Formula
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Percent Off CalculatorCalculate the discounted price with this Percent Off Calculator. Input the original price and discount percentage to instantly determine your savings and final cost.Formula
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Dress Size CalculatorEstimate your dress size from bust, waist and hip measurements. Get approximate US, UK and EU sizes in inches or centimeters instantly.Formula
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Glove Size CalculatorFind your glove size from your hand circumference in inches or cm. Get numeric and letter (XS–XXL) sizes instantly with this free calculator.Formula
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Antipode CalculatorFind the antipode — the exact point on the opposite side of the Earth — from any latitude and longitude. Instant antipodal coordinates.Formula
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Speed Unit Conversion CalculatorConvert any speed value into m/s, km/h, fps, mph, knots, Mach and the speed of light at once. Free, high-precision speed unit conversion calculator.Formula
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Length Unit Conversion CalculatorConvert any length into 36 units at once: metric, imperial/US, Japanese shakkanho (sun, shaku, ken, ri) and astronomical units (AU, light-year, parsec).Formula
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Weight / Mass Unit Conversion CalculatorConvert weight and mass between metric, yard-pound (avoirdupois) and traditional Japanese units. Enter a value and unit to see all 20 conversions instantly.Formula
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Grain Conversion CalculatorConvert grains to grams and grams to grains instantly using the exact factor 1 grain = 0.06479891 g. Free, accurate mass conversion tool.Formula
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Mizuwari Dilution CalculatorCalculate how much liquor and water to mix for a water-cut "mizuwari" drink. Enter target strength, total volume and spirit ABV to get exact ml.Formula
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Diluted Drink (Mizuwari) Alcohol Percentage CalculatorCalculate the final ABV and total volume of a water-diluted drink (mizuwari) from the liquor volume, its strength, and the amount of water added.Formula
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Mizuwari Dilution CalculatorWork out how much water to add to whisky or shochu to dilute it to your target strength. Calculates water needed and the total mizuwari volume.Formula
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Metric to Inches CalculatorConvert metric length (millimeters) to inches instantly. Enter millimeters to get inches plus centimeters and meters using inches = mm / 25.4.Formula
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Mile Conversion CalculatorConvert miles to kilometers, meters, yards, and feet instantly. Enter any distance in miles and get accurate metric and imperial conversions.Formula
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