Showing 58 calculators
Distance Between Points Calculator - Free 2D & 3D Distance Calculator
Calculate the distance between two points in 2D or 3D space. Find distance, midpoint, and slope with visual representation and step-by-step solutions.
Angle Converter - Free Degrees, Radians, Gradians Converter
Convert angles between degrees, radians, gradians, and turns. Includes DMS (degrees, minutes, seconds) conversion with visual representation.
Golden Ratio Calculator - Free Phi Calculator & Golden Rectangle Generator
Calculate golden ratio proportions, find golden rectangle dimensions, and explore Fibonacci sequences. Visual tools for design and art.
Coordinate Geometry Calculator - Free Line Equations & Intersection Calculator
Calculate line equations, find intersections, perpendicular and parallel lines, and analyze geometric properties in the coordinate plane.
Arc Length Calculator - Free Circle Arc & Sector Calculator
Calculate arc length, sector area, chord length, and segment area. Works with degrees and radians. Visual circle diagram included.
Mean, Median, Mode Calculator - Free Online Statistics Calculator
Calculate mean (average), median (middle value), and mode (most frequent) instantly. Includes step-by-step solutions and data visualization.
Standard Deviation Calculator - Free Online Variance & SD Calculator
Calculate standard deviation, variance, and coefficient of variation. Choose between population and sample calculations with visual distribution.
Correlation Coefficient Calculator - Free Pearson's r Calculator
Calculate Pearson correlation coefficient (r) between two variables. Includes scatter plot, regression line, and coefficient of determination (rยฒ).
Z-Score Calculator - Free Standard Score & Probability Calculator
Calculate z-scores, find probabilities, and percentile ranks. Convert between raw scores and z-scores with visual normal distribution curve.
Chi-Square Test Calculator - Free ฯยฒ Statistical Test
Perform chi-square tests for independence and goodness of fit. Calculate chi-square statistic, p-value, and visualize expected vs observed frequencies.
Confidence Interval Calculator - Free CI Calculator for Mean & Proportion
Calculate confidence intervals for population mean, proportion, and difference. Find margin of error and interpret results with visualization.
Linear Regression Calculator - Free Statistical Analysis Tool
Perform linear regression analysis. Calculate slope, intercept, R-squared, predictions, and residuals with scatter plot visualization.