Formula Finder
All formulas are stored in the database — add or edit them from Admin → Tools → Formulas.
17 formula(s)
BMI (reference)
BMI = weight(kg) / [height(m)]²
Health metric, not a pure “bio law”
Ideal gas (basic)
PV = nRT
R universal gas constant
Molarity
M = moles of solute / litres of solution
Concentration unit
Mole
n = given mass / molar mass
Basic mole concept
Percentage composition
% of element = (mass of element / molar mass) × 100
From molecular formula
Area of circle
A = πr²
r = radius
Compound interest (annual)
A = P(1 + R/100)^n
A amount after n years
Pythagoras theorem
a² + b² = c²
Right triangle; c hypotenuse
Quadratic formula
x = (−b ± √(b² − 4ac)) / (2a)
For ax² + bx + c = 0
Simple interest
SI = (P × R × T) / 100
P principal, R rate %, T time in years
Acceleration
a = (v − u) / t
u initial, v final velocity
Kinetic energy
KE = (1/2)mv²
m mass, v speed
Newton’s second law
F = ma
F force, m mass, a acceleration
Ohm’s law
V = IR
V voltage, I current, R resistance
Potential energy
PE = mgh
h height above reference
Power
P = W / t = Fv
Work per unit time
Speed
v = s / t
s distance, t time