Complete Tools Directory

All Online Utilities & Calculators

Browse our comprehensive catalog of 50+ verified mathematical, financial, construction, and everyday tools.

Temperature Converter (Celsius, Fahrenheit, Kelvin)

Convert temperatures seamlessly between Celsius (°C), Fahrenheit (°F), Kelvin (K), and Rankine (°R).

Convert between liters, milliliters, cubic meters, gallons, quarts, pints, cups, and fluid ounces.

Convert between kilograms, grams, milligrams, metric tons, pounds, ounces, and stones.

Convert between metric and imperial length units including meters, kilometers, centimeters, millimeters, miles, yards, feet, and inches.

Calculate sample and population standard deviation, variance, mean, and sum of squares for any dataset.

Calculate the arithmetic mean, median, mode, minimum, maximum, and range of a set of numbers.

Calculate the least common multiple (LCM / НОК) of two or three positive integers.

Find the greatest common divisor (GCD / HCF / НОД) of two or three positive integers using the Euclidean algorithm.

Evaluate scientific mathematical functions including trigonometry, logarithms, roots, powers, and factorials without unsafe arbitrary expressions.

Perform arithmetic operations on proper and improper fractions, reduce fractions to simplest terms, and convert to decimals.