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Student Tools & Calculators

Educational calculators designed to help you learn the process, not just get answers. Perfect for AP, SAT, and ACT prep.

Step-by-step learning

AP, SAT & ACT aligned

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Graphing Calculator

Learn to graph equations step-by-step. Interactive calculator that teaches you how to plot linear, quadratic, exponential, and more.

Step-by-step explanations
Interactive learning
7 equation types supported

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Quadratic Solver

Solve quadratic equations with detailed step-by-step working. Shows the discriminant, factoring, and formula methods.

Step-by-step solutions
Multiple solving methods
Graph visualization

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Simultaneous Equations

Solve 2×2 and 3×3 systems of linear equations with step-by-step working. Multiple solution methods shown.

2×2 and 3×3 systems
Step-by-step solutions
Matrix methods

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Factoring Calculator

Factor quadratics, difference of squares, and sum/difference of cubes with step-by-step solutions.

Quadratic factoring
Difference of squares
Learn Mode with hints

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Radicals Calculator

Simplify radicals, rationalize denominators, add, subtract, multiply and divide square roots with step-by-step working.

Simplify radicals (√72 = 6√2)
Rationalize denominators
Learn Mode with hints

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Logarithm Calculator

Calculate log, ln, and antilog with step-by-step solutions. Learn logarithm laws and convert between bases.

Log, ln & antilog
Change of base formula
Step-by-step solutions

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Sequence Calculator

Find the nth term formula for arithmetic, geometric, and quadratic sequences. Identify patterns and calculate sums.

Find nth term formula
Arithmetic & geometric sequences
Quadratic support

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Complex Numbers Calculator

Add, subtract, multiply, divide complex numbers. Find modulus, argument, polar form, and apply De Moivre's theorem with step-by-step solutions.

Argand diagram visualization
De Moivre's theorem
Polar form conversion

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Derivative Calculator

Calculate derivatives with step-by-step differentiation rules. Supports power, chain, product, and quotient rules.

Step-by-step rules
Chain, product, quotient rules
Higher derivatives

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Limit Calculator

Evaluate limits with L'Hôpital's rule and step-by-step solutions. Perfect for AP Calculus prep.

L'Hôpital's rule
One-sided limits
Limits at infinity

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Integral Calculator

Calculate indefinite and definite integrals with step-by-step techniques. Learn integration patterns.

Indefinite & definite
Pattern recognition
Area under curve

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Geometry Calculator

Calculate area, perimeter, volume, and surface area for 2D and 3D shapes with step-by-step explanations.

2D & 3D shapes
Area & perimeter
Volume & surface area

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Trigonometry Calculator

Calculate sin, cos, tan, and inverse trig functions. Convert degrees to radians. Solve right triangles with SOH-CAH-TOA.

Sin, cos, tan, csc, sec, cot
Inverse trig functions
Right triangle solver

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Vectors Calculator

Calculate magnitude, dot product, cross product, and angles between 2D and 3D vectors with step-by-step solutions.

2D & 3D vector support
Dot & cross products
Angle between vectors

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Statistics Calculator

Calculate mean, median, mode, standard deviation, variance, and more. Perfect for AP Statistics and data analysis.

Mean, median, mode
Standard deviation
Quartiles & IQR

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Probability Calculator

Calculate combinations (nCr), permutations (nPr), binomial probability, and more with step-by-step solutions.

nCr & nPr calculations
Binomial probability
Conditional probability

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Prime Calculator

Find prime factors, GCF (Greatest Common Factor), LCM (Least Common Multiple), and check if numbers are prime.

Prime factorization
GCF & LCM
Factor pairs

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Fraction Calculator

Add, subtract, multiply, and divide fractions with step-by-step explanations. Simplifies results automatically.

All operations supported
Step-by-step working
Mixed number support

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Percentage Calculator

Calculate percentages, percentage changes, and reverse percentages. Great for finance and statistics problems.

Percentage of a number
Percentage increase/decrease
Reverse percentages

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Ratio & Proportion Calculator

Simplify ratios, solve proportions, divide amounts in ratios, and find equivalent ratios with step-by-step solutions.

Simplify ratios
Solve proportions
Divide amounts in ratios

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Scientific Notation Calculator

Convert numbers to and from scientific notation (standard form). Perform operations and learn with step-by-step working.

Convert to A × 10ⁿ
Add, subtract, multiply, divide
Step-by-step solutions

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Significant Figures Calculator

Count significant figures, round to sig figs, and perform calculations with correct sig fig rules. Step-by-step learning with visual digit highlighting.

Count sig figs
Round to sig figs
Arithmetic with sig fig rules

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Matrix Calculator

Perform matrix operations including addition, multiplication, determinant, inverse, and RREF.

Add, subtract, multiply
Determinant & inverse
RREF & rank

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Number Base Converter

Convert between binary, decimal, hexadecimal, and octal with step-by-step explanations. Includes bitwise operations, binary arithmetic, and ASCII conversion.

Binary/Hex/Dec/Oct conversion
Bitwise operations
Binary arithmetic

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Compound Interest Calculator

Calculate compound interest and depreciation with step-by-step working. Compare simple vs compound interest.

Compound interest & depreciation
Simple vs compound comparison
Year-by-year breakdown

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Kinematics Calculator

Calculate velocity, acceleration, and solve SUVAT equations with step-by-step working. Perfect for AP Physics 1 & 2.

Velocity & acceleration
All 5 kinematic equations
Step-by-step solutions

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Forces Calculator

Calculate force, mass, acceleration, weight, and friction with step-by-step solutions. Newton's laws made easy for AP Physics.

F=ma calculator
Weight & friction
Step-by-step solutions

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Energy Calculator

Calculate work done, kinetic energy, gravitational and elastic potential energy, efficiency, and power. Perfect for AP Physics.

KE = ½mv²
GPE = mgh
Efficiency calculator

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Electricity Calculator

Calculate voltage, current, resistance, and power with Ohm's law. Series & parallel circuits made easy for AP Physics.

Ohm's law V=IR
Power calculator
Series & parallel

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Waves Calculator

Calculate wave speed, frequency, wavelength with v=fλ. Snell's law, refraction, and standing waves for AP Physics.

Wave equation v=fλ
Snell's law
Standing waves

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Momentum Calculator

Calculate momentum, impulse, and collisions. Conservation of momentum for elastic and inelastic collisions. Perfect for AP Physics.

p = mv
Impulse J = FΔt
Collision calculator

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Radioactivity Calculator

Calculate half-life, radioactive decay, activity, and count rates. Balance nuclear equations for alpha, beta, and gamma decay. Perfect for AP Physics and Chemistry.

Half-life N=(½)ⁿ
Activity A=λN
Nuclear equations

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Circular Motion Calculator

Calculate angular velocity, centripetal acceleration, and centripetal force. Includes vertical circles and banked curves for AP Physics.

ω = 2πf
a = v²/r
F = mv²/r

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Projectile Motion Calculator

Calculate range, maximum height, time of flight, and visualize trajectories with step-by-step solutions. Perfect for AP Physics.

Trajectory visualizer
Range & max height
Step-by-step solutions

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Torque Calculator

Calculate torque, principle of moments, equilibrium, and couples with step-by-step solutions and visual beam diagram. Perfect for AP Physics.

τ = Fd calculator
Beam equilibrium
Visual diagram

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Optics Calculator

Calculate focal length, image distance, magnification, and lens power. Includes critical angle and total internal reflection for AP Physics.

1/f = 1/u + 1/v
m = v/u
P = 1/f

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Moles & Stoichiometry Calculator

Calculate moles, mass, molar mass, concentration, reacting masses, percent yield, and gas volumes. Step-by-step solutions for AP Chemistry.

Moles ↔ Mass (n=m/M)
Molar mass from formula
Concentration & gas volumes

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pH Calculator

Calculate pH of strong acids, weak acids, buffer solutions, and dilutions. Includes ICE tables, Henderson-Hasselbalch equation, and C₁V₁=C₂V₂ with step-by-step solutions for AP Chemistry.

Strong & weak acid/base pH
Buffer pH (Henderson-Hasselbalch)
Dilution with pH change

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Chemical Equation Balancer

Balance chemical equations using matrix algebra, identify reaction types, generate ionic equations, and practice with 50+ equations. Step-by-step solutions for AP Chemistry.

Auto-balance any equation
Reaction type classifier
Ionic & net ionic equations

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Enthalpy & Thermochemistry Calculator

Calculate enthalpy changes with q=mcΔT calorimetry, bond enthalpies, Hess's Law, Born-Haber cycles, and Gibbs free energy. Step-by-step solutions for AP Chemistry.

Calorimetry (q=mcΔT)
Bond enthalpy calculations
Hess's Law & Born-Haber cycles

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Electron Configuration Calculator

Calculate electron configurations for all 118 elements with orbital diagrams, noble gas notation, ion configurations, and quantum numbers. Step-by-step solutions for AP Chemistry.

All 118 elements + exceptions
Orbital diagrams with Hund's rule
Ion configs & quantum numbers

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Punnett Square Calculator

Predict genetic crosses with Punnett squares. Supports monohybrid, dihybrid, codominance, incomplete dominance, and X-linked inheritance with step-by-step solutions. Perfect for AP Biology.

Monohybrid & dihybrid
Codominance & X-linked
Visual Punnett grid

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DNA & Protein Synthesis Calculator

Transcribe DNA to mRNA and translate to amino acid chains. Includes codon table lookup, mutation analysis, and step-by-step solutions. Perfect for AP Biology.

DNA → mRNA → Protein
Codon table & mutations
Step-by-step solutions

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Ecology & Population Calculator

Calculate Simpson's Diversity Index, Lincoln Index, population growth curves, and species frequency from quadrat sampling. Step-by-step solutions for AP Biology.

Simpson's & Lincoln Index
Population growth curves
Quadrat sampling

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Magnification & Cell Size Calculator

Calculate magnification, image size, actual size, and convert between mm, µm, and nm. Use scale bars and total magnification. Step-by-step solutions for AP Biology.

M = I ÷ A triangle
mm ↔ µm ↔ nm conversions
Scale bar & total magnification

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SA:V Ratio Calculator

Calculate surface area to volume ratio for cubes, spheres, and cylinders. Compare sizes, simulate cell division, and explore scaling effects. Step-by-step solutions for AP Biology.

SA:V for cubes & spheres
Cell division simulation
Scaling effects

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Water Potential Calculator

Calculate water potential (ψ = ψs + ψp), solute potential (ψs = -iCRT), predict water movement direction, and analyze calibration curves. Step-by-step solutions for AP Biology.

ψ = ψs + ψp solver
Solute potential (iCRT)
Calibration curves

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Scientific Calculator

Full-featured scientific calculator with trigonometry, logarithms, powers, and more. Perfect for complex calculations.

Trigonometric functions
Logarithms & exponentials
Memory functions

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Unit Converter

Convert between units of length, mass, volume, temperature, and more. Essential for science subjects.

Length, mass, volume
Temperature conversion
Scientific units

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Why Students Love Our Tools

Built by educators, designed for learning

Step-by-Step Learning

Each tool walks you through the method, not just the answer — building the exam technique you actually need.

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Open any tool and start straight away. No account, no waiting — just revision, any time you need it.

UK Curriculum Aligned

Built around GCSE and A-Level requirements for AQA, Edexcel, and OCR. Covers exactly what the syllabus requires.

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