Formula Sheets & Key Equations Library
Browse our expert-curated collection of formula cards for K–12 Math, Science, and more. Find every essential equation, shortcut, or method for quick revision—from algebra and geometry to physics, trigonometry, statistics, and real-life applications.
Algebra & General Math Formulas
All K-12 Math Formulas
Comprehensive reference for arithmetic, fractions, ratios, geometry, and algebra basics.
K–12 Algebra Formulas
Key equations: factoring, powers, roots, identities & linear, quadratic, cubic algebra.
Quadratic Formula
How to solve any quadratic equation step-by-step with discriminants & examples.
Cubic (a³±b³) Formulas
Sum/difference of cubes, factorization rules, classic exam shortcuts.
Algebraic Equations
Linear, quadratic, polynomial, and solving strategies for all grade levels.
Geometry, Area, Volume & Measurement
Geometry Formulas
Perimeter, surface area, Pythagoras, polygons, angles, circles, triangles.
Triangle Area Formulas
Heron's, base-height, and other triangle area calculation methods explained.
Rectangle Area Formulas
Formulas for area, perimeter, and properties of rectangles and parallelograms.
Circle Area Formulas
Find the area of a circle, sector, segment, and circle-based shapes.
Circumference Formulas
How to calculate circumference & arc length with stepwise logic & tips.
Cylinder Volume Formula
Find the volume and surface area of cylinders and related solids.
All Volume Formulas
Cubes, prisms, cones, spheres, pyramids, 3D volume cheatsheet.
Midpoint Formula
Find the precise middle—coordinate geometry midpoint explained.
Arc Length Formulas
Calculate arc lengths for circles, sectors, and circular paths.
Trigonometry, Calculus & Science Formulas
Trigonometry Formulas
All sine, cosine, tangent, and general trig identities in one guide.
Cosine Rule
Law of cosines formulas for non-right angled triangles, tips & solved examples.
Differentiation Formulas
Basic derivatives, rules, and chain/product/quotient examples for calculus learners.
Acceleration Formulas
Physics & calculus acceleration equations for motion, units, problems.
Velocity Formulas
Instantaneous, average, uniform velocity in physics and math.
Distance Formulas
Distance between points, straight line, segment formulas (with solved examples).
Statistics, Probability & Data Science
Variance Formulas
Sample, population, shortcut variance equations with practical statistics help.
Median Formulas
How to find the median from lists, groups, ungrouped or grouped data.
Standard Deviation
Population & sample standard deviation, quick stats methods.
Slope Formulas
Finding the slope (gradient) for lines in coordinate geometry, regression.
Chemistry & Physics Core Equations
Molarity Formulas
Formula for molarity, solutions & units for chemistry calculations.
Basic Chemical Formulas
Symbols, ions, compounds, acids, bases, general chemistry basics.
Simple Interest Formulas
Quick guide for simple interest, principal, rate, time in finance & banking.
Compound Interest Formula
Long-term savings, principal, rate calculation with worked examples.
Power Equations
Physics & math power, energy formula for electrical/mechanical systems.
Density Formula
Density, mass, volume calculation for science, lab, and real-world use.
Momentum Formulas
Linear momentum, conservation, impulse, and physics applications.