Science & Physics
16 In-Browser ToolsPhysics mechanics, projectile motion, chemical molarity, pH, stoichiometry, genetics, and astronomy calculations. Zero cloud uploads — runs locally on your machine in volatile memory.
Science & Physics
Physics mechanics, projectile motion, chemical molarity, pH, stoichiometry, genetics, and astronomy calculations.
Projectile Motion Calculator
physicsCalculate maximum height, flight time, and horizontal range for 2D projectile trajectory in physics.
Solution Dilution Calculator (C1V1 = C2V2)
chemistryCalculate stock solution and solvent volumes for laboratory dilutions using the standard C1V1 = C2V2 formula.
pH and pOH Calculator
chemistryCalculate pH, pOH, hydrogen ion concentration [H+], and hydroxide concentration [OH-] at 25°C.
Kinematics & Momentum Physics Calculator
physicsCalculate velocity, displacement, momentum, and kinetic energy using Newton's laws of motion.
Ideal Gas Law Calculator (PV = nRT)
chemistrySolve for Pressure, Volume, Moles, or Temperature in the Ideal Gas Law equation.
Molarity & Solution Molecular Weight Calculator
chemistryCalculate the exact solute mass required to prepare specific molarity solutions in chemistry.
Radioactive Half-Life & Exponential Decay Calculator
physicsCalculate remaining radioactive activity, half-lives elapsed, and decay constant.
Cosmic Distances & Light-Travel Lookback Time Calculator
astronomyConvert astronomical distances and calculate light-travel lookback time.
DNA/RNA GC-Content & Oligo Melting Temp (Tm) Calculator
biologyAnalyze nucleotide sequences for GC%, molecular weight, and PCR primer annealing Tm.
Projectile Trajectory & Kinematics Calculator
physicsSimulate 2D projectile trajectory mechanics: maximum height, total flight time, range, and impact velocity.
pH & pOH Acid-Base Concentration Calculator
chemistryInterconvert between pH, pOH, hydronium [H⁺], and hydroxide [OH⁻] concentrations at 25°C standard conditions.
Snell's Law of Refraction & Critical Angle Calculator
opticsCalculate angle of refraction (θ₂), refractive indices (n₁, n₂), and total internal reflection critical angle.
Kepler's Third Law & Orbital Velocity Calculator
astronomyCompute orbital period (T), semi-major axis (a), and circular orbital velocity around stars and planets.
Bacterial Growth & Doubling Time Calculator
biologyModel exponential bacterial culture replication, generation time (g), doubling count, and colony size.
Ideal Gas Law Calculator (PV = nRT)
Solve for Pressure (P), Volume (V), Moles (n), or Temperature (T) of ideal gases using universal gas constant R.
Radioactive Decay & Half-Life Calculator
Calculate remaining radioactive isotope activity, elapsed half-life cycles, and decay constant λ.