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Browse calculators by topic Finance, everyday life, construction, conversions, and more.

770 apps · Showing 1–96

Data & Calculators: Functions & Curves

Parametric Curve Plotter

Turn two formulas into loops, spirals, Lissajous figures, and other paths controlled by t.

Scientific Function Plotter

Type a math formula and explore its curve with zoom, hover values, and a clean downloadable graph.

Data & Calculators: Compare Data

Bubble Chart Maker

Compare x, y, and size at once, with labels and groups that make every bubble easy to inspect.

CSV Scatter Plot Maker

Paste x and y values, colour points by group, and spot clusters, gaps, and unusual results.

Error Bar Chart Maker

Plot measured values with plus-or-minus error bars so uncertainty stays visible beside each result.

Multi-Series Line Chart Maker

Draw one or more ordered lines from CSV data and compare how each series rises or falls.

Data & Calculators: Distributions

Box Plot Maker

Compare medians, quartiles, ranges, and unusual points across one or more groups.

Histogram Maker

Group measurements into bins and see where values gather, spread out, or form more than one peak.

Violin Plot Maker

Show the full density shape of grouped measurements while keeping the median and inner box visible.

Data & Calculators: Grids & Fields

2D Density Contour Plot Maker

Estimate where x and y observations gather and show their density as filled contour bands.

Contour Plot Maker

Turn gridded measurements into smooth contour bands that reveal peaks, valleys, and boundaries.

Matrix Heatmap Maker

Convert row, column, and value data into a colour grid with hover values and a clear scale.

Data & Calculators: 3D Science

3D Scatter Plot Maker

Plot x, y, and z values in a rotatable space, then colour groups and inspect point labels.

3D Surface Function Plotter

Type a two-variable formula and rotate a smooth 3D surface to inspect peaks, bowls, waves, and saddles.

3D Vector Field Maker

Draw vectors from x, y, z positions with u, v, w direction values in a rotatable cone field.

Data & Calculators: Special Coordinates

Polar Plot Maker

Turn angle and radius values into circular traces for direction, cycles, and radial measurements.

Radar Chart Maker

Compare several profiles across the same named categories with clear filled radar shapes.

Ternary Plot Maker

Plot three values that form a whole, such as material blends, soil mixes, or survey shares.

Data & Calculators: Finance & Change

Candlestick Chart Maker

Turn dated OHLC values into an interactive candlestick chart with zoom and a range slider.

Waterfall Chart Maker

Show how gains, losses, and totals move a starting value toward a final result.

Data & Calculators: Many Variables

Correlation Matrix Heatmap

Calculate pair-by-pair correlations across numeric columns and see strong positive or negative links.

Parallel Coordinates Plot Maker

Turn each numeric column into an axis and follow every row across a high-dimensional profile.

Scatter Plot Matrix Maker

Build a grid of scatter plots so every numeric column can be compared with every other column.

Data & Calculators: Math Calculators

Area Calculator

Calculate area and perimeter for rectangles, circles, triangles, trapezoids, and ellipses.

Average Calculator

Calculate arithmetic mean, median, sum, count, minimum, and maximum for a list of numbers.

Basic Calculator

Evaluate arithmetic with parentheses, powers, percentages, and standard operator precedence.

Big Number Calculator

Perform exact arithmetic on integers larger than JavaScript's ordinary safe-number range.

Binary Calculator

Perform exact arithmetic on binary integers and convert the result to decimal and hexadecimal.

Circle Calculator

Find diameter, circumference, area, and equations from a circle radius.

Common Factor Calculator

List all positive factors shared by two or more whole numbers.

Confidence Interval Calculator

Estimate a normal-theory confidence interval for a mean from a sample mean, deviation, and size.

Distance Calculator

Calculate straight-line distance, displacement, midpoint, and coordinate differences between two points.

Exponent Calculator

Raise any real base to an integer or fractional exponent and show reciprocal forms for negative powers.

Factor Calculator

List every positive factor and factor pair for a whole number.

Fraction Calculator

Add, subtract, multiply, or divide two fractions and reduce the answer to lowest terms.

Greatest Common Factor Calculator

Find the greatest common factor of two or more whole numbers.

Half-Life Calculator

Calculate the remaining amount, elapsed half-lives, and decay constant for exponential decay.

Hex Calculator

Perform exact arithmetic on hexadecimal integers and convert the result to decimal and binary.

Least Common Multiple Calculator

Find the least common multiple of two or more whole numbers.

Log Calculator

Calculate logarithms with any positive base, including common and natural logarithms.

Long Division Calculator

Divide whole numbers and show quotient, remainder, decimal result, and the division identity.

Matrix Calculator

Add, subtract, multiply, transpose, or find the determinant of matrices up to 8 by 8.

Mean, Median, Mode, Range Calculator

Find the mean, median, mode, range, sum, and count of a list of numbers.

Number Sequence Calculator

Analyze a sequence for arithmetic or geometric patterns and project its next five terms.

P-value Calculator

Convert a z statistic to left-tailed, right-tailed, and two-tailed normal-distribution p-values.

Percent Error Calculator

Compare an observed value with an accepted value and calculate absolute and signed percent error.

Percentage Calculator

Solve percent-of, percent-ratio, and percentage-change questions with the formula shown.

Permutation and Combination Calculator

Calculate ordered permutations and unordered combinations for n objects chosen r at a time.

Prime Factorization Calculator

Break a whole number into prime factors and show exponential notation.

Probability Calculator

Calculate event probability, odds, complements, and independent two-event combinations.

Pythagorean Theorem Calculator

Find the hypotenuse and other properties of a right triangle from its two legs.

Quadratic Formula Calculator

Solve ax² + bx + c = 0 and report real or complex roots, the discriminant, and vertex.

Random Number Range Generator

Generate one or more random integers or decimals within an inclusive range.

Ratio Calculator

Simplify a ratio, convert it to fractions and percentages, and scale it to a chosen total.

Right Triangle Calculator

Solve all sides, acute angles, area, and perimeter from two right-triangle legs.

Root Calculator

Calculate square, cube, or nth roots, including real odd roots of negative numbers.

Rounding Calculator

Round a number to decimal places or significant figures and compare floor, ceiling, and truncation.

Sample Size Calculator

Estimate a survey sample size from confidence level, margin of error, population, and expected proportion.

Scientific Calculator

Evaluate scientific expressions with powers, roots, trigonometry, logarithms, constants, and factorials.

Scientific Notation Calculator

Convert decimal numbers to normalized scientific and engineering notation.

Slope Calculator

Find slope, distance, midpoint, line equation, and angle from two Cartesian points.

Standard Deviation Calculator

Calculate population and sample standard deviation, variance, mean, and count for a data set.

Statistics Calculator

Summarize a data set with centre, spread, variance, standard deviation, and sorted values.

Surface Area Calculator

Calculate total and lateral surface area for common solid shapes.

Triangle Calculator

Solve a triangle from three side lengths, including area, perimeter, angles, and classification.

Volume Calculator

Find the volume and surface area of common three-dimensional shapes.

Z-score Calculator

Standardize a value using a population mean and standard deviation, then estimate its percentile.