OneTaskEducation Tools
GPA Calculator, ATAR Estimator, Citation Generator and Readability Checker
Tools for students and teachers. Work out grades, GPAs and weighted averages, build citations, check readability, and explore interactive models of molecules, crystals and the solar system. Everything runs in the browser, so it works on school laptops without an install.
133 tools tagged Education
Arc Length And Sector Area Calculator
Arc length, sector area, chord and segment from radius and angle.
NewArea Calculator
Area of eleven common 2D shapes, with the working shown.
NewArithmetic Sequence Calculator
The nth term, the sum and the rule, with the working.
ATAR Estimator
Unofficial ATAR estimate from scaled study scores using the aggregate method.
Average Calculator
Mean, median, mode and range of any list of numbers.
Bibliography Generator
A sorted reference list in APA, MLA, Harvard or Chicago from many sources.
Bingo Card Generator
Random 75-ball, 90-ball and word bingo cards, up to 50 at a time.
NewBinomial Probability Calculator
Exactly, at most and at least k successes in n trials.
NewChemical Equation Balancer
Balance any chemical equation with whole-number coefficients.
Chord Finder
Name any chord from its notes, with inversions and formulas.
NewCircle Calculator
Radius, diameter, circumference and area from any one of them.
Circle Of Fifths
Key signature, relative minor and chords for any key.
Citation Generator
APA, MLA, Harvard and Chicago references from one set of details.
NewCombined Gas Law Calculator
Solve P1V1/T1 = P2V2/T2 for any missing value.
NewCompleting The Square Calculator
Vertex form, vertex and roots of any quadratic, step by step.
NewConcept Map Maker
Type concept -> link -> concept lines to draw a concept map.
NewConfidence Interval Calculator
Confidence interval for a mean, using t or z.
NewCorrelation Coefficient Calculator
Pearson r, Spearman rho and significance from paired data.
NewCrossword Maker
Turn your words and clues into a printable crossword.
NewCryptogram Maker
Turn a quote into a printable letter-swap code puzzle.
Crystal Lattice Viewer
Orbit unit cells of the common crystal structures, read their packing numbers.
NewDecimal To Fraction Calculator
Decimals to simplified fractions, recurring decimals and inch fractions included.
NewDecision Tree Maker
Type choices, odds and payoffs to see each option's expected value.
NewDefinite Integral Calculator
The integral between two limits, the area and the average value.
NewDegrees To Radians
Convert degrees to radians: multiply by π/180.
NewDerivative Calculator
Derivatives with the rules shown, plus the tangent at a point.
NewDeterminant And Inverse Matrix Calculator
Determinant and inverse of a square matrix, as exact fractions.
NewDilution Calculator
Solve C1V1 = C2V2 and get the stock-and-water recipe.
NewDistance Formula Calculator
Distance between two points, with the exact root and working.
Ear Training Quiz
Quiz yourself on intervals and chord qualities by ear, with a running score.
NewEmpirical Formula Calculator
Empirical and molecular formula from percent or grams.
NewExpected Value Calculator
Expected value, variance and SD of a set of outcomes.
Exponent Calculator
Raise a number to any power, with exact results for big powers.
NewExponential Growth And Decay Calculator
Final amount, doubling time or half-life for steady percentage growth or decay.
Factor Calculator
All the factors, factor pairs and prime factorisation of a number.
Factorial Calculator
Exact n factorial up to 5000!, with digits and trailing zeros.
Final Grade Calculator
Weighted grade so far and the exam mark you need for a target.
Fingerspelling Practice
Practise ASL fingerspelling with webcam hand tracking that reads your letters. Nothing uploaded.
NewFive Number Summary Calculator
Min, quartiles, median, max, IQR and outliers.
Flashcard Generator
Printable double-sided flashcards from a list of terms and definitions.
UpdatedFraction Calculator
Add, subtract, multiply and divide fractions, with the working shown.
NewFraction To Decimal Calculator
Fractions and mixed numbers to decimals, repeating digits marked.
NewFunction Grapher
Graph up to three functions with roots and turning points marked.
GCF Calculator
Greatest common factor of two or more numbers, with every step.
NewGeometric Sequence Calculator
The nth term, the sum and the infinite sum, with the working.
GPA Calculator
Credit-weighted GPA on a 4.0 or 7.0 scale, with a target check.
Grade Calculator
Points scored to percentage, letter grade and grade points.
NewGrams To Moles Converter
Grams to moles and back for any formula.
NewHackathon Name Generator
Hackathon names like HackForge, Code for Climate and Midnight Build.
NewHalf-Life Calculator
Amount left, decay time or half-life, isotopes built in.
NewIdeal Gas Law Calculator
Solve PV = nRT for any one unknown, in any common unit.
NewInequality Calculator
Solve a linear or double inequality, with interval notation and the number line.
NewInteractive Periodic Table
All 118 elements, coloured by category, block or property.
NewInteractive Unit Circle
Drag the angle and see sin, cos and tan as lengths.
NewLanguage School Name Generator
Names like Polyglot House, Speak Easy Languages and Northgate School of English.
NewLaw Of Sines And Cosines Calculator
Missing sides and angles by the law of sines or cosines.
LCM Calculator
Least common multiple of two or more numbers, with the working.
NewLinear Equation Calculator
Solve one-variable linear equations with full working.
NewLinear Regression Calculator
Least-squares line of best fit, R² and predictions.
Log Calculator
Logarithms in base 10, e, 2 or any base, and antilogs.
NewLong Division Calculator
Long division with every step shown, remainders or decimals.
NewLong Multiplication Calculator
Column multiplication with every row and the final sum shown.
NewMargin Of Error Calculator
Plus-or-minus for a poll or survey result.
NewMatrix Calculator
Matrix multiplication, addition and transpose with working.
NewMidpoint Calculator
Midpoint of a segment, or the missing endpoint from the midpoint.
NewMixed Number Calculator
Add, subtract, multiply and divide mixed numbers with steps.
Modulo Calculator
Find a mod n for huge or negative numbers in every convention.
NewMolar Mass Calculator
Molar mass of any formula, brackets and hydrates included.
NewMolarity Calculator
Molarity, mass to weigh and volume for any solution.
Molecule Viewer
Open a PDB or XYZ molecule in 3D, orbit it, save a PNG.
NewMultiplication Chart
Multiplication grid for any range of numbers, up to 30 by 30.
NewMusic School Name Generator
Names like Allegro Music Academy, Hartley Piano Studio and The Practice Room.
NewNormal Distribution Calculator
Areas under any bell curve, and values at a percentile.
NewOnline Course Name Generator
Course names like Launch Lab, 30 Days to Fluent and The Writer Blueprint.
Page Count Estimator
Word count to pages by font and line spacing.
NewPercent Composition Calculator
Mass percent of each element in any formula.
NewPercent To Fraction Calculator
Percentages to simplified fractions and decimals, with working.
NewPercent Yield Calculator
Percent yield and theoretical yield from a limiting reactant.
NewPercentage Change Calculator
Percentage change from old to new, with working and average rate.
NewPercentile Calculator
Value at a percentile, or percentile rank of a value.
NewPerimeter Calculator
Perimeter of twelve common 2D shapes, with the working shown.
Permutation And Combination Calculator
nCr and nPr, with and without repetition, exact to the last digit.
NewPH Calculator
pH, pOH and ion concentrations, weak acids and bases too.
NewPolynomial Root Calculator
Real and complex roots of any polynomial, with factorisation.
NewPrime Factorisation Calculator
Prime factors of any number, with the division ladder shown.
Prime Number Checker
Check if a number is prime, or list the primes in a range.
Probability Calculator
Combine two probabilities, and the odds of at least once.
NewProportion Calculator
Find the missing number in a/b = c/d, with the cross multiplication shown.
NewPyramid Diagram Maker
Type levels top to bottom and get a layered pyramid diagram.
Pythagorean Theorem Calculator
Find the hypotenuse or a missing side of a right triangle.
Quadratic Equation Calculator
Solve ax² + bx + c = 0, with exact roots and the vertex.
UpdatedRatio Calculator
Simplify a ratio, split an amount in it, or scale it up.
Readability Checker
Flesch reading ease, grade level and five other readability scores at once.
NewRegular Polygon Calculator
Every measurement of a regular polygon from one known value.
NewRhyme Finder
Perfect and near rhymes for any word, by syllable count.
NewRhythm Tap Trainer
Tap along to a click and see your timing error in milliseconds.
NewRight Triangle Calculator
Every side and angle of a right triangle from any two values.
Root Calculator
Square, cube and nth roots, with the radical simplified.
Rounding Calculator
Round to decimal places or the nearest 10, with five rounding rules.
NewSample Size Calculator
How many responses a survey needs.
SAT And ACT Score Calculator
SAT totals, ACT composites and the official conversion between them.
SAT To ACT Concordance
Official SAT to ACT and ACT to SAT score equivalents.
School / Academy Name Generator
School names like Northgate Academy, Whitfield College and Oakridge Primary School.
Scientific Notation Converter
Convert numbers to scientific, E and engineering notation and back.
Significant Figures Calculator
Count significant figures and round to any number of them.
NewSlope Calculator
Slope, y = mx + b, angle and grade from two points.
NewSlope-Intercept Form Calculator
Slope, intercepts and every form of a line from two points.
Solar System Simulator
3D planets in their real positions for any date, with orbits and time control.
Standard Deviation Calculator
Sample and population standard deviation and variance of a list.
Study Time Calculator
Weekly study hours from your credit load, per day and per term.
NewSudoku Generator
Printable sudoku from easy to expert, with answer keys.
NewSudoku Solver
Type in any sudoku and see the full solution.
NewSummation Calculator
Sigma notation sums with the terms written out.
NewSurface Area Calculator
Total and side surface area of eleven 3D solids.
Syllable Counter
Syllables per word, per line and in total, for poems and haiku.
NewSystem Of Equations Calculator
Solve simultaneous equations with every elimination step.
NewTap Tempo
Tap the beat to measure BPM and delay times in milliseconds.
NewTimes Tables Practice
Timed times tables quiz that re-asks the facts you miss.
NewTriangle Calculator
Every side, angle and the area of a triangle from three known parts.
NewTrig Calculator
All six trig functions and their inverses, with exact values.
Tutoring Business Name Generator
Tutor names like Whitfield Tutoring, Bright Minds Tuition and The Study Room.
Typing Speed Test
Timed typing test with net WPM, gross WPM and accuracy.
NewVenn Diagram Maker
List the items in each set and get a labelled Venn diagram.
NewVolume Calculator
Volume of eleven common 3D solids, with the working shown.
UpdatedWAM Calculator
Weighted average mark from unit marks, credit points and year level.
Weighted Average Mark Calculator
Marks and weightings to an overall grade, with the classification band.
NewWord Ladder Solver
The shortest one-letter-at-a-time path between two words.
NewWord Scramble Worksheet Maker
Printable unscramble-the-word worksheets from your own list.
NewWord Search Maker
Turn any word list into a printable word search.
NewWords From Letters
Every word you can make from a set of letters, by length.
Words Per Minute Calculator
Gross and net WPM and accuracy from characters, time and errors.
Writing Prompt Generator
Random story prompts by genre, with optional writing constraints.
NewZ-Score Calculator
Z-score, percentile and tail areas from a value, mean and SD.