Formula guides
K-12 Formulae Guide
A subject index for K-12 formulas in physics, math, chemistry, biology, and statistics. Each guide opens to categorized formula cards with definitions, variables, and related calculators.
5 guides 2,140 formulas 140 categories
Subject Guides
Select a subject to open its formula list.
PhysicsFormula Guide
Mechanics, forces, energy, waves, electricity, magnetism, optics, and modern physics.
Open guideMathFormula Guide
Arithmetic, algebra, functions, geometry, trigonometry, probability, matrices, and vectors.
Open guideChemistryFormula Guide
Measurement, atomic structure, bonding, moles, stoichiometry, solutions, gases, pH, and thermochemistry.
Open guideBiologyFormula Guide
Cells, enzymes, photosynthesis, respiration, genetics, ecology, human systems, and biotechnology.
Open guideStatisticsFormula Guide
Data, probability, distributions, sampling, confidence intervals, hypothesis tests, regression, and time series.
Open guideWhat Is Included
The guide pages use the same structure so students can move between subjects without learning a new layout.
Formula Cards
- Formula written in math notation
- Definition of the formula or relation
- Variable meanings for the symbols used
- Subject category for each formula
Page Tools
- Search box for formula names and symbols
- Category buttons for topic filtering
- Quick calculators for common formulas
- FAQ section for each subject page
Suggested Use
- Open the subject guide.
- Filter by the topic used in class.
- Read the formula and symbol meanings.
- Use the calculator when the page includes one for that formula type.
Guide Summary
Formula counts and category counts for the current guide set.
Frequently Asked Questions
Short answers about using the formula guide pages.
What subjects are included?
The page links to K-12 formula guides for physics, math, chemistry, biology, and statistics.
How many formulas are included across the guides?
The five subject guides include 2,140 formulas in total.
Do the guide pages show variable meanings?
Yes. Formula cards include definitions and variable or symbol meanings where they apply.
Can students search inside a subject guide?
Yes. Each subject page includes a search box and category filters.
Do the formulas use math notation?
Yes. The subject pages use MathJax so formulas display in mathematical notation.
Which guide should I open first?
Open the subject that matches the class or assignment, then use the category filters inside that guide.
Are the formula pages organized by topic?
Yes. Each subject page groups formulas by topic categories such as mechanics, algebra, genetics, probability, or stoichiometry.
Can this page be used as a resources hub?
Yes. It is designed as a central index page that points to the five subject formula guides.