Free exponential growth and decay calculator – solve A = A₀(1+r)ᵗ and A = A₀eʳᵗ for any unknown. Generates values table, interactive graph, doubling time, half-life, and full step-by-step working
Free projectile motion calculator solve range, maximum height, time of flight and velocity for any two known inputs. Interactive animated trajectory, planet gravity selector, and step-by-step working.
Free reaction order calculator solve zero order and first order kinetics equations, calculate half-life, determine reaction order from data. Includes integrated rate law solver and graphs.
Complete rotational kinematics equations calculator. Solve ? = ?0 + at, ? = ?0t + ½at², ?² = ?0² + 2a? for any unknown. Includes angular-to-linear converter, t = Ia dynamics, period & frequency — with full formula reference and worked examples
moment of inertia calculator find mass MOI and area MOI for rectangle, circle, rod, sphere, cylinder, ring, cone, and hollow sections. Includes section modulus, parallel axis theorem, and full formula reference tables.
pipe flow calculator find GPM by pipe size and pressure using Hazen-Williams. Includes PSI to GPM converter, 1/2 inch and 1 inch pipe flow tables, gravity flow and laminar flow calculators.
partial pressure calculator use Dalton’s Law and mole fraction to find partial pressure of any gas. Includes ideal gas law method, gas mixture analyzer, and pressure unit converter.
Triple integral calculator with coordinate converter (Cartesian, cylindrical, spherical), volume integral calculator for 3D shapes, Jacobian calculator, and integration limits reference.
de Broglie wavelength calculator – find the matter wavelength of any particle using λ = h/mv. Includes electron wavelength from voltage, particle comparison, and relativistic calculator.
wavelengths and frequencies of all colors from violet (380 nm) to red (700 nm). Interactive spectrum tool, color lookup calculator, and reference tables.