Basic Calculators
Essential Math Tools for Everyday Use
7 calculators
Available Tools
Percentage Calculator
Free percentage calculator. Calculate percentage of total, percentage change, percentage increase/decrease, and more.
Discount Calculator
Calculate discounts, sale prices, and savings instantly. Find final prices after percentage off, compare multiple discounts, and see how much you save.
Tip Calculator
Calculate tips easily and split bills among friends. Choose tip percentage based on country customs, see total with tip, and divide evenly with our free tip calculator.
Random Number Generator
Generate random numbers with custom range. Support for decimals, unique numbers, and batch generation. Free online random number generator.
Number Base Converter
Convert numbers between binary, decimal, hexadecimal, and octal. Easy number base conversion. Free online number converter.
Unit Converter
Convert between different units of measurement. Length, weight, temperature, volume, and more. Free online unit converter.
Aspect Ratio Calculator
Calculate aspect ratios and resize dimensions. Keep proportions when resizing images or videos. Free online aspect ratio calculator.