Free math tools from basic arithmetic to scientific functions, date calculations, work hours, and more. All free, all instant.
Clean, fast, four-function calculator for everyday addition, subtraction, multiplication, and division with calculation history.
Advanced calculator with sin, cos, tan, log, ln, square root, powers, factorials, and π. Toggle between degrees and radians.
Three calculators in one: find X% of Y, calculate what percent X is of Y, and find the percentage change between two values.
Calculate your exact age in years, months, and days from any birthdate. Also shows total days lived.
Calculate the exact number of days, weeks, months, and years between any two dates.
Calculate total work hours with automatic break deduction. Returns hours and minutes plus decimal hours for payroll.
Generate one or multiple random numbers within any range. Great for games, raffles, and decisions.
Calculate cubic yards and cubic feet of concrete needed for slabs, driveways, patios, and footings.