Math Calculators
Free calculators for everyday arithmetic, ratios, averages, random numbers, and quick math checks.
Average Calculator
Calculate mean, median, mode, range, sum, count, minimum, and maximum from a list of numbers.
Ratio Calculator
Simplify ratios, scale ratios, compare equivalent ratios, and solve missing ratio values.
Random Number Generator
Generate random integers or decimals with min, max, quantity, uniqueness, sorting, and secure-random options.
Time Zone Converter
Convert a date and time between common time zones with DST-aware browser calculations.