Easily calculate percentages — find X% of Y, percentage change, or what percent X is of Y.

Calculate your Body Mass Index (BMI) and find out if you are underweight, normal weight, o

Convert between all length and distance units — meters, feet, inches, miles, kilometers an

Calculate tip amount and split the bill between multiple people easily.

Calculate simple interest on a principal amount for a given time period and rate.

Calculate the molarity of a solution using moles of solute and volume in liters.