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Concrete CalculatorWork out how much concrete you need for a slab, patio or footing — in m³, yd³ and premix bags.Energy Converter — kJ to kcalConvert kilojoules to kilocalories and back — plus joules, megajoules, calories, Wh, kWh and BTU in one place.Flooring CalculatorWork out how many packs of laminate, vinyl or wood flooring you need.Fuel Economy ConverterConvert fuel consumption between L/100 km, litres per mil, km/L and US or UK miles per gallon.Password GeneratorGenerate strong, secure random passwords instantly in your browser.Percentage Change CalculatorSee the percentage increase or decrease between two values, plus the absolute difference.Random Date GeneratorGenerate random dates between any two dates, with leap years handled correctly.Secret Santa GeneratorDraw Secret Santa names instantly — everyone gets one person to buy for, and nobody draws themselves.Tile CalculatorFind how many tiles and boxes you need for a floor or wall, with waste included.Torque Converter — Nm to ft-lbConvert newton-metres to pound-feet and back — plus N·cm, kN·m, in-lb and kgf·m — using the exact definitions.VAT CalculatorAdd VAT to a net amount or remove it from a gross amount, at any rate.Wi-Fi Password GeneratorStrong random Wi-Fi passwords for WPA2/WPA3 — easy-to-type options without look-alike characters.
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