AI Calculator

Discover

Sales Tax Calculator
Sales tax calculator is a tool used to calculate the amount of sales tax to be added to the cost of goods or services.
Days Until Calculator
Easily calculate how many days are left until any date with our free Days Until Calculator. Enter your target date to see days, weeks, and months remaining instantly. Perfect for counting down to events, birthdays, holidays, and deadlines.
Lunar to Gregorian Date Calculator
Instantly convert any lunar date to its corresponding Gregorian (solar) date. Simple, accurate, and based on the Chinese lunar calendar system.
Simple Interest Rate Calculator
Free interest rate calculator. Enter your principal amount and payment to instantly calculate daily, monthly, and annual interest rates. Simple and accurate.
Stopwatch
Use this online stopwatch to measure time intervals precisely. Start, stop, and reset with ease.