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A clear, dependable home for the formulas behind real science. Math, chemistry and physics — every equation explained in plain language, always free to read.
Pick where you want to start.
Three subjects, each with its own clearly organised set of formulas and explanations.
See how clearly we explain things.
Every formula comes with a one-line explanation of what it means and when to use it — no jargon, no filler.
Quadratic Formula
Solves any quadratic equation of the form ax² + bx + c = 0 for x.
Ideal Gas Law
Links pressure, volume, amount and temperature of a gas — R is the universal gas constant.
Kinetic Energy
The energy an object carries because it is moving.
Pythagorean Theorem
In a right-angled triangle, the square of the hypotenuse equals the sum of the squares of the other two sides.
pH of a Solution
Measures acidity from the hydrogen-ion concentration.
Ohm's Law
Voltage across a resistor equals current through it times its resistance.
Three steps from stuck to sorted.
Browse
Pick a subject and scan the formulas. Everything is grouped and labelled so you find what you need fast.
Understand
Read the plain-language note next to each formula — what every symbol means and why it works.
Apply
Take it straight into your homework, revision or lesson plan with confidence.
Dependable science, explained clearly, free for everyone.
enhancedgradezz exists so no pupil is held back by a formula they cannot find or cannot understand. We keep the content accurate, plainly worded and open — no paywalls, no accounts, no distractions.
Whether you teach it or you're learning it.
For pupils
A calm place to look something up mid-revision, check you've remembered a formula right, and finally understand what each symbol is doing.
For teachers
A dependable reference you can point a class to — consistent notation, plain explanations, and nothing you'd need to correct on the board.
Spotted a mistake or missing a formula?
We'd genuinely like to hear from you. Send us a question, a correction, or a formula you'd love to see added.