Other Calculators

Everyday calculators for dates and time, construction and materials, conversions, automotive, electronics and general utilities.

Age Calculator Calculate exact age in years, months and days, plus total weeks, days, hours … Date Calculator Add or subtract days, weeks, months and years from a date, or measure the gap… Time Calculator Add and subtract hours, minutes and seconds, with the answer in decimal hours… Hours Calculator Count hours between two clock times with breaks deducted, in decimal and hour… GPA Calculator Calculate semester and cumulative GPA on a 4.0, 4.3 or 5.0 scale from letter … Grade Calculator Work out your current weighted grade and the score you need on what is left t… Height Calculator Predict adult height with the mid-parental method, and convert freely between… Concrete Calculator Work out cubic yards and metres of concrete for slabs, footings, columns and … IP Subnet Calculator Turn an IP and CIDR prefix into network address, broadcast, mask, wildcard, h… Bra Size Calculator Convert underbust and bust measurements into a band and cup size, with US, UK… Password Generator Generate strong random passwords in your browser, with an entropy score. Noth… Dice Roller Roll any number of dice with any number of sides, with modifiers and a runnin… Conversion Calculator Convert length, weight, volume, temperature, area, speed, data, energy, press… Fuel Cost Calculator Price the fuel for a trip, split it between passengers, and see the cost per … Voltage Drop Calculator Calculate voltage drop and percentage drop for copper or aluminium conductors… BTU Calculator Size an air conditioner or heater in BTU for a room, adjusted for climate, in… Square Footage Calculator Measure floor area in square feet, yards and metres, with material cost and w… Time Card Calculator Add up a weekly timesheet with breaks, overtime and gross pay from clock-in a… Time Zone Calculator Convert a time between UTC offsets and see the day shift when it crosses midn… Love Calculator A light-hearted name compatibility score. Entertainment only — the algorithm … GDP Calculator Calculate GDP with the expenditure approach and derive per-capita and compone… Gas Mileage Calculator Convert distance and fuel used into MPG, L/100 km, km/L and cost per mile. Horsepower Calculator Convert torque and RPM into horsepower, kilowatts and metric PS. Engine Horsepower Calculator Estimate engine output from quarter-mile trap speed, elapsed time or a dyno t… Stair Calculator Design a code-compliant staircase: number of risers, exact riser height, trea… Resistor Calculator Combine resistors in series or parallel and solve voltage dividers, with powe… Ohms Law Calculator Enter any two of voltage, current, resistance or power and get the other two. Electricity Calculator Turn an appliance's wattage and usage into kWh, monthly cost, yearly cost and… Shoe Size Conversion Convert shoe sizes between US, UK, EU, Japanese cm and foot length in inches. Tip Calculator Split a bill and tip between any number of people, with 15/18/20% shown side … Mileage Calculator Calculate mileage reimbursement at the IRS or your own rate, and split busine… Density Calculator Density from mass and volume, converted to every common unit. Mass Calculator Find mass from density and volume, in grams, kilograms, pounds and newtons of… Weight Calculator Convert mass to weight on Earth and other worlds, and between kilograms, poun… Speed Calculator Solve for speed, distance or time, with every unit converted alongside. Molarity Calculator Calculate molarity, moles and the mass needed for any target concentration. Molecular Weight Calculator Parse a chemical formula and return molar mass with the contribution of each … Roman Numeral Converter Convert both ways between Arabic numbers and Roman numerals, from 1 to 3,999,… Golf Handicap Calculator Calculate a World Handicap System index from your score differentials, plus y… Sleep Calculator Find bedtimes and wake times that land between 90-minute sleep cycles, so you… Tire Size Calculator Compare two tire sizes for overall diameter, circumference, sidewall height, … Roofing Calculator Turn footprint and pitch into roof area, roofing squares, bundles of shingles… Tile Calculator Count the tiles a floor or wall needs, including grout gaps, waste allowance … Mulch Calculator Calculate cubic yards of mulch, the number of bags, and what it costs to cove… Gravel Calculator Calculate cubic yards and tons of gravel or crushed stone for a driveway, pat… Wind Chill Calculator Calculate the wind chill 'feels like' temperature and the frostbite exposure … Heat Index Calculator Calculate the heat index from temperature and humidity, with the NOAA risk ca… Dew Point Calculator Calculate dew point with the Magnus formula, plus the comfort level that dew … Bandwidth Calculator Convert file size and connection speed into transfer time, and Mbps into MB/s. Base64 Encode / Decode Encode text to Base64 or decode it back, entirely in your browser with full U… URL Encode / Decode Percent-encode and decode URLs and query strings, with both component and ful… Time Duration Calculator Measure the exact duration between two dates and times in years, days, hours,… Day Counter Count the days, weeks, weekdays or weekends between two dates. Day of the Week Calculator Find the weekday for any date, plus week number, day of year and whether it i…

About the other calculators

Everyday calculators for dates and time, construction and materials, conversions, automotive, electronics and general utilities. There are 54 tools in this category, and each one shows the formula it uses, works instantly as you type, and keeps your figures on your own device.

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