📐 Mathematics Tools

Work out your exact age — or the time between any two dates — in years, months, weeks, days, hours, minutes and seconds. Shows your next birthday countdown, the weekday you were born, your zodiac s...

Solve equations instantly. Type any equation and click Solve.

Work with derivatives and integrals. Enter a function of x, choose operation, and generate step‑by‑step results.

Angle between hour and minute hands. Minute hand = 6° × minutes. Hour hand = 0.5° × (60×hours + minutes). The smaller angle is min(θ, 360 − θ).

Read the hands, set the clock yourself, and work out elapsed time — three modes, five questions each, with instant feedback. The clock is drawn locally; nothing leaves your device.

Perform operations with complex numbers in rectangular (a+bi) and polar (r∠θ) forms. Visualize results on the complex plane with step-by-step solutions. ✅ Supports: + − × ÷ √ ^ log sin cos conjugat...

WORKING CALCULATOR for Computer Science & Mathematics. Real calculations for set theory, combinatorics, and logic. Everything works instantly!

Solve algebraic equations step-by-step. Supports linear, quadratic, and cubic equations. Try examples below!

COMPLETE MATH PREP - Generate practice problems with step-by-step solutions. Track your progress across 500+ questions covering all major topics.

Calculate powers, roots, and exponential functions with detailed steps and visualizations. Perfect for students learning algebra and calculus.

List the factors and multiples of any number, then practise finding the highest common factor, lowest common multiple and factor/multiple facts.

Interactive scientific formula calculator with detailed explanations, 3D visualizations, and step-by-step solutions. Perfect for students and professionals in STEM fields.

Master fractions with calculations, visual representations, and step-by-step explanations. Perfect for students learning fractions!

Type any z = f(x, y) formula and watch it become a spinning 3D mountain range. Safe built-in math parser (no eval), orbit/zoom controls, height colormaps and a random-function dice for beautiful ac...

Find the greatest common factor, least common multiple and prime factorisation of one or more integers. Enter a single integer to also see whether it is prime and its neighbouring primes. Euclidean...

Calculate the area, perimeter, or volume of common shapes.

Calculate areas, perimeters, and volumes for common shapes. Choose a shape, enter dimensions, and get results with formulas shown.

Calculate GPA for universities worldwide. Supports multiple grading systems and conversions.

Calculate weighted grades, predict final scores, and see what you need to achieve your target grade.

Interactive math visualization: Plot functions, find roots, compute derivatives/integrals, solve equations, and create beautiful graphs. Perfect for students, teachers, and professionals.

Convert between hexadecimal, decimal, binary, octal, and ASCII with bitwise operations. Essential for developers, modders, and reverse engineering!

Surfaces that shouldn't exist: a Möbius strip with adjustable twists, a Klein bottle (inside IS outside), and torus knots you design with p/q sliders. Points, wireframe or solid candy render.

Perform comprehensive linear algebra operations with step-by-step solutions, matrix visualization, and educational explanations.

Evaluate logarithms in any base, convert between bases, and solve for an unknown exponent. Shows the change-of-base working so you can follow it on paper.

See every step of long division — divide, multiply, subtract, bring down — then practise on a generated calculation with full remainder and check-back working. All local, nothing sent anywhere.

Calculate arithmetic and geometric sequences and series. Includes step-by-step solutions and visual representations.

Step beyond calculation into mathematical discovery. Visualize concepts, see proofs unfold, find connections humans have never seen.

Generate random maths flashcards for quick practice. Perfect for studying, teaching, or mental math warm-ups. 🎯 Interactive • Timed practice • Multiple topics • Progress tracking

Solve mathematical expressions, equations, and practice calculations. Supports arithmetic, algebra, trigonometry, and more!

Paste numbers separated by commas, spaces or new lines. Sample standard deviation uses n − 1 (Bessel); population uses n. Mode lists every most-frequent value.

Work out the mean, median, mode and range of a data set, see the full working, and learn when each average is the right tool. 5 rounds, instant feedback, all on your device.

A 60-second arithmetic workout with three difficulty levels, streak bonuses and a review of every question you missed. Sharpens everyday number sense — tips, change, discounts.

Comprehensive number theory laboratory: Explore prime numbers, factorization, modular arithmetic, sequences, and advanced mathematical properties. Perfect for students, educators, cryptography enth...

Type any expression and see it solved one operation at a time with the reason for each step — no calculator tricks, no guessing. Then take the 5-question practice round with worked solutions. Every...

Work out the percentage increase or decrease between two numbers, plus reverse percentages and a worked price-change example.

Master percentages with advanced calculations, visualizations, and real-world applications. From basic math to financial analysis!

Break any number into its prime factors with a full working ladder, learn the divisibility rules, then practise finding the next prime factor yourself. Primes are the building blocks of every whole...

Your gut feeling about chance is usually wrong — prove it to yourself. Simulate the Monty Hall problem, the birthday paradox and coin-flip streaks with thousands of instant trials.

Calculate probabilities for dice, cards, distributions, and real-world scenarios.

Find the missing side of a right-angled triangle with the Pythagorean theorem — plus the area, perimeter and both acute angles.

Solve ax² + bx + c = 0 with the quadratic formula — real or complex roots, with every step shown.

π rad = 180°. Also shows revolutions and a reduced π-fraction when it is close to a simple multiple of π.

Solve a/b = c/d for the blank, simplify a ratio, and scale a recipe-style mix. Leave exactly one of A, B, C, D empty. Cross-multiply: A × D = B × C.

Convert numbers to Roman numerals and back, with a step-by-step breakdown of how each numeral is built. Handles 1–3,999 in standard notation and up to 3,999,999 with overline (vinculum) notation. I...

Master rounding rules and quick estimation. Round any number to a chosen place, then estimate answers to real-life word problems with 5-round quizzes and full working.

Full-featured scientific calculator with trigonometry, logarithms, powers, and memory functions. Works offline.

Convert a number to scientific / engineering notation and round to significant figures. 1.23 × 10⁴ is 12300. Trailing zeros in 1000 are ambiguous — say how many sig figs you want.

Find any term and the running sum of arithmetic or geometric sequences, test a geometric series for convergence, and see the working for the formula you used.

Fill in any two of speed, distance and time; the third is calculated. Swap units without changing the physics: metres, kilometres, miles, knots, hours, minutes, seconds.

V_sphere = 4/3 π r³, A = 4 π r². Cylinder π r² h. Cone (1/3) π r² h. Enter radius and height in the same units; volume comes out in those units cubed.

Comprehensive statistical analysis tool with descriptive statistics, probability distributions, hypothesis testing, and data visualization. This tool is supported by user contributions .

Drill the 1–12 times tables with instant feedback, streak tracking and a review of the facts you get wrong. Includes a full 12×12 grid and memory tricks. Everything runs in your browser — no sign-u...

Sin = Opposite / Hypotenuse Cos = Adjacent / Hypotenuse Tan = Opposite / Adjacent

Type two lists and watch the Venn diagram draw itself — union, intersection, symmetric difference and per-zone items are listed.