Science & Physics

Physics mechanics, projectile motion, chemical molarity, pH, stoichiometry, genetics, and astronomy calculations.

Projectile Motion Calculator

Calculate maximum height, flight time, and horizontal range for 2D projectile trajectory in physics.

physics

Solution Dilution Calculator (C1V1 = C2V2)

Calculate stock solution and solvent volumes for laboratory dilutions using the standard C1V1 = C2V2 formula.

chemistry

pH and pOH Calculator

Calculate pH, pOH, hydrogen ion concentration [H+], and hydroxide concentration [OH-] at 25°C.

chemistry

Kinematics & Momentum Physics Calculator

Calculate velocity, displacement, momentum, and kinetic energy using Newton's laws of motion.

physics

Ideal Gas Law Calculator (PV = nRT)

Solve for Pressure, Volume, Moles, or Temperature in the Ideal Gas Law equation.

chemistry

Molarity & Solution Molecular Weight Calculator

Calculate the exact solute mass required to prepare specific molarity solutions in chemistry.

chemistry

Radioactive Half-Life & Exponential Decay Calculator

Calculate remaining radioactive activity, half-lives elapsed, and decay constant.

physics

Cosmic Distances & Light-Travel Lookback Time Calculator

Convert astronomical distances and calculate light-travel lookback time.

astronomy

DNA/RNA GC-Content & Oligo Melting Temp (Tm) Calculator

Analyze nucleotide sequences for GC%, molecular weight, and PCR primer annealing Tm.

biology

Projectile Trajectory & Kinematics Calculator

Simulate 2D projectile trajectory mechanics: maximum height, total flight time, range, and impact velocity.

physics

pH & pOH Acid-Base Concentration Calculator

Interconvert between pH, pOH, hydronium [H⁺], and hydroxide [OH⁻] concentrations at 25°C standard conditions.

chemistry

Snell's Law of Refraction & Critical Angle Calculator

Calculate angle of refraction (θ₂), refractive indices (n₁, n₂), and total internal reflection critical angle.

optics

Kepler's Third Law & Orbital Velocity Calculator

Compute orbital period (T), semi-major axis (a), and circular orbital velocity around stars and planets.

astronomy

Bacterial Growth & Doubling Time Calculator

Model exponential bacterial culture replication, generation time (g), doubling count, and colony size.

biology

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.

science

Radioactive Decay & Half-Life Calculator

Calculate remaining radioactive isotope activity, elapsed half-life cycles, and decay constant λ.

science