Math

Inverse Trigonometric Function Calculator

Accurately calculate radian values for inverse trig functions like arcsin and arccos. Supports 6 function types and custom decimal precision.

Trigonometry Calculator

Calculate six trigonometric functions from radian values with custom decimal precision.

Prime and Composite Number Calculator

Instantly identify prime, composite, or special numbers. Supports batch checking and mathematical property analysis.

Circle Area Calculator

Quickly calculate the area of a circle by entering the radius, diameter, or circumference. Supports custom units and precision settings.

Least Common Multiple (LCM) Calculator

Quickly calculate the least common multiple (LCM) of two or more integers. Supports space-separated number list input.

Greatest Common Divisor (GCD) Calculator

An online tool to calculate the greatest common divisor (GCD) of multiple integers. Supports space-separated number lists.

Cube Root Calculator

Quickly calculate the cube root of any number with customizable decimal places for accurate and reliable results.

Arithmetic Sequence Generator

Generate standard arithmetic sequences using the first term, common difference, and number of terms. Ideal for math studies, programming, and data analysis.

压力单位换算

支持帕斯卡(Pa)、psi、bar、atm等14种压力单位间的精确换算，适用于工程、气象及科研领域。

Logarithm Calculator

Quickly calculate natural, binary, and common logarithms with custom precision. Perfect for math students and scientific calculations.

Trapezoid Area Calculator

Quickly calculate the area of a trapezoid by entering the top base, bottom base, and height. Supports custom units and precision settings.

Temperature Unit Converter

Convert between 5 temperature units online, including Celsius, Fahrenheit, and Kelvin. Supports custom decimal precision and one-click copy.

Geometric Sequence Generator

Automatically calculate and generate a complete geometric sequence based on the first term, common ratio, and number of terms.

Sector Area Calculator

Quickly calculate the area of a sector based on the radius and central angle (degrees or radians), with support for custom units and adjustable precision.

Weight Unit Converter

Accurately convert between 20+ weight and mass units including kilograms, pounds, ounces, and carats. Perfect for cooking, logistics, and scientific research.

Factorial Calculator

Calculate the factorial (n!) of any positive integer. Ideal for math, programming, and statistics.

Ellipse Area Calculator

Accurately calculate the area of an ellipse by entering the semi-major and semi-minor axes. Supports customizable units and decimal precision.

Number Sequence Generator

Generate custom number sequences based on start value, end value, and step size. Ideal for programming, testing, and bulk naming.

长度单位换算

在线换算千米、米、英寸、英尺等长度单位，支持公制、英制及市制单位，结果可复制。

Antilog Calculator

Calculate the antilogarithm of any value using base e, 2, or 10. Instantly restore the original number