Welcome to That Calculator

Our ounces to pounds Converter is the perfect tool for converting ounces to pounds and vice versa.

Our Liter to Gallon converter is a nifty tool that helps you convert the volume of liquids from liters (l) to gallons (gal) or vice versa.

Our percentage change calculator will help you calculate the percentage change between two values, provide the two values and our calculator will do the rest.

Our volume of a cylinder calculator enables you to calculate the volume of a cylinder using its diameter or radius. This calculator allows you to find the volume of a Right or Oblique Full cylinder and a Hollow cylinder.

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.

Our Bar to Psi converter is the perfect tool to convert pressure from bar to psi or vice versa quickly.

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.

Do you want to calculate slope? Our slope calculator helps you easily calculate the slope of a line or curve. Our slope calculator will also show you the Y-intercept, Line equation, Angle with X-axis, Slope as a Percentage, Distance between two points, and more.