A unit converter is a tool that allows users to convert measurements from one unit to another. This can be useful in fields like science, engineering, cooking, and everyday life where different unit systems are used.

A percentage calculator is a tool that helps you quickly calculate percentages, making it easier to find out values based on percentages without manual calculations. It can be used for various purposes, such as calculating discounts, tax, interest, and increases or decreases in values

Simple interest is a way to calculate how much money you earn or owe based on a loan or investment. It is calculated using the initial amount of money (called the principal), the interest rate, and the time period.

A Compound Interest Calculator is a tool designed to help you estimate the future value of your investments or savings based on the principle of compounding. Unlike simple interest, where interest is calculated only on the principal amount, compound interest allows you to earn interest on both the principal and the accumulated interest over time.