Utilities tools
Handy everyday utilities for text, files, and more.
23 tools
Area ConverterConvert square feet to square metres, acres to hectares, mål to m² and more — with the side of an equal square.Data Storage Converter — MB to GBConvert MB to GB, GB to TB, bits to bytes and decimal units to binary GiB and MiB — every unit at once.EV Charging Cost CalculatorWork out what it costs to charge an electric car, how long it takes and how much range you get, including charging losses.Electricity Cost CalculatorFind out what an appliance costs to run per day, month and year from its wattage and your electricity price.Energy Converter — kJ to kcalConvert kilojoules to kilocalories and back — plus joules, megajoules, calories, Wh, kWh and BTU in one place.Fuel Cost CalculatorWork out what a car trip will cost in fuel — and split it between passengers.Fuel Economy ConverterConvert fuel consumption between L/100 km, litres per mil, km/L and US or UK miles per gallon.Heat Pump Savings CalculatorHow much electricity and money a heat pump saves compared with electric heaters — from the heat it covers, its SCOP and your electricity price — plus the payback time.Length ConverterConvert between inches, feet, centimetres, metres, miles, kilometres and more — including feet and inches.Ohm's Law CalculatorCalculate voltage, current, resistance and power from any two known values.Power Converter — hp to kWConvert horsepower to kW and back — mechanical hp, metric PS, watts, BTU/h and kcal/h in one place.Pressure Converter — bar to psiConvert bar to psi, psi to bar, kPa, hPa (mbar), atm, mmHg and inHg — for tyres, weather and more.Shower Cost CalculatorFind out how much water and energy a shower uses — and what each shower costs you per shower and per year.Speed ConverterConvert mph to km/h, m/s to km/h, knots and feet per second — and see the matching running pace.Stopping Distance CalculatorCalculate reaction distance, braking distance and total stopping distance from speed, reaction time and road conditions.Temperature ConverterConvert between Celsius, Fahrenheit and Kelvin — with the formula worked out step by step.Tire Size CalculatorCompare two tyre sizes: overall diameter, sidewall height, circumference and how much your speedometer changes.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.Unit Price CalculatorCompare two products by price per gram, millilitre or item to see which is the better deal.Volume ConverterConvert gallons to litres, litres to cubic metres, cubic feet, pints, quarts and more — US and UK units.Water Heater Heating Time CalculatorHow long it takes to heat a full electric water heater, how many kWh it uses, what it costs and how much shower-hot water you get.Weight ConverterConvert pounds to kg, kg to pounds, ounces, stone, grams and tons — including pounds and ounces.Work Hours CalculatorCalculate hours worked from start and end time minus breaks — in hours and minutes, decimal hours and per week.