CraftSprint
178 free tools · CraftSprint AI · 100% in your browser
Age, BMI, calories, percentages, dates, units, aspect ratios, fuel cost and Roman numerals. 10 tools, all free and private.
Simplify a resolution or jump to standard social & video sizes.
Use Aspect Ratio CalculatorConvert length, weight and temperature units in real time.
Use Unit ConverterFind a percentage, a percentage of a number, or percentage change.
Use Percentage CalculatorFind the days between two dates or add and subtract days from one.
Use Date CalculatorFind your exact age in years, months and days, plus your next birthday.
Use Age CalculatorWork out body mass index from height and weight in metric or imperial units.
Use BMI CalculatorTurn numbers into Roman numerals and Roman numerals back into numbers.
Use Roman Numeral ConverterTrip fuel and cost, split between passengers.
Use Fuel Cost CalculatorEstimate BMR and daily calories (TDEE) from your activity.
Use Calorie CalculatorConvert any date to the Islamic (Hijri) calendar.
Use Hijri Date Converter
