Category
Science & Education Tools
18 free science & education tools on Toolenza. No signup, no upload by default — browser-only privacy where possible.
All-in-one
Every science & education tool in tabbed view
Ohm's Law
V = I × R — solve any one
Kinetic Energy
KE = ½ m v²
Projectile Motion
Range, peak height, flight time
Free Fall
Velocity, distance, time of fall
Wavelength ↔ Frequency
c = λ × f
Density
ρ = m / V
Molar Mass
Compute moles from mass and Mr
Molarity
Concentration of a solution
Dilution
C₁V₁ = C₂V₂
pH Calculator
pH from [H⁺] (and reverse)
Ideal Gas Law
PV = nRT
Half-Life
Radioactive decay over time
VO₂ Max
Cooper test 12-min run
Z-Score
(x − μ) / σ — standardize a value
Sample Size
How many subjects you need
Golf Handicap
World Handicap System (WHS) index
Test Grade
% from correct/total
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