Science Calculators

Science Calculators - Physics, Chemistry, and Nuclear Science

Science calculators translate theoretical laws into practical numbers. From Newton’s second law to Ohm’s law, from solution molarity to pH, from radioactive decay to nuclear binding energy - these calculators are built for students, teachers, and working scientists who need fast, formula-accurate results. Every page shows the governing equation, defines all variables with SI units, and walks through a worked example.

Three Subcategories Covering Core Sciences

Physics Calculators

The Force Calculator applies F = ma - enter any two of force, mass, and acceleration to find the third. The Kinematics Calculator solves all five SUVAT equations simultaneously from any three known variables, handling deceleration and free-fall. The Ohm’s Law Calculator covers all four modes: V, I, R, and power (P = IV = I²R = V²/R). The Projectile Motion Calculator returns range, max height, and time of flight for any launch angle and speed. The Work Energy Power Calculator covers W = Fd·cosθ, KE = ½mv², PE = mgh, and P = W/t.

Chemistry Calculators

The Molarity Calculator works in three modes - find molarity, find mass of solute, or find volume - and includes a dilution mode using M₁V₁ = M₂V₂. The Molecular Weight Calculator parses any chemical formula including parentheses (Ca(OH)₂, Al₂(SO₄)₃) and returns g/mol plus elemental composition percentages. The pH Calculator converts between [H⁺] concentration and pH in both directions, and also shows pOH using the relationship pH + pOH = 14 at 25°C.

Nuclear Science Calculators

The Radioactive Decay Calculator applies N(t) = N₀ · e^(−λt) to find remaining nuclei and activity after any elapsed time, covering isotopes from C-14 to U-238. The Half-Life Calculator converts freely between half-life (t½), decay constant (λ), and mean lifetime (τ), with a built-in reference table for 14 common isotopes. The Nuclear Binding Energy Calculator computes mass defect and binding energy in MeV using E = Δm × 931.494 MeV/u, with a quick-select nuclide table from He-4 to Pu-239. The Radiation Dose Calculator converts absorbed dose (Gy) to equivalent and effective dose (Sv) using ICRP Publication 103 radiation and tissue weighting factors, with comparison to annual background. The Nuclear Fission Energy Calculator computes Q-values from atomic mass differences, with U-235 and Pu-239 presets and per-kg TNT-equivalent scaling.

Who These Calculators Are For

Students from Classes 9–12 and JEE/NEET aspirants will find all curriculum-relevant physics, chemistry, and modern physics (nuclear science) calculations covered. Undergraduate science and engineering students use them for lab calculations and problem-set verification. Medical physicists use the Radiation Dose Calculator for dose cross-checks. Nuclear engineering students use the Fission Energy Calculator for reactor physics problems. Laboratory professionals rely on the Molarity and pH calculators for rapid solution preparation checks.