Welcome to That Calculator

The circumference to diameter calculator is a handy tool for converting circumferences to diameters. All you need is the circumference and our calculator will do the rest.

This tool is perfect for finding a ratio of weight to height and returning a single number. Our BMI calculator shows your BMI and the weight you need to lose if you are overweight.

Our Square Footage calculator is the perfect tool to find out the size or space in a room or house. Have you ever wondered how to figure out the size of a room or a space in your house? This is called calculating the square footage.

Our slope intercept form calculator is a handy tool for finding the equation of a line from any two points that this line passes through. Our calculator shows the coefficients of slope and y-intercept, as well as the x-intercept using the slope intercept formulas

Our percentage difference calculator is here to help you calculate the percentage difference between two numbers, provide the two values and our calculator will do the rest.

The due date calculator (also called a pregnancy calculator) helps answer the question: "When is my baby due?" Our tool estimates the due date for your baby's birth.

With our Celsius to Fahrenheit converter, you can easily change temperatures between Celsius and Fahrenheit scales. Enter your temperature value, and we'll show you the equivalent in the other unit.

Our oz to Cups Converter is the perfect tool for knowing the equivalent of oz to Cups and vice versa.