Physics, Chemistry & Astronomy
307 tools · page 3 of 6
- Lever Calculator Calculate the effort force and mechanical advantage of a lever from the load and arm lengths.
- Photon Momentum Calculator Calculate the momentum and energy of a photon from its wavelength.
- Gravitational Force Calculator Calculate the gravitational force between two masses (Newton's law).
- Gravitational Potential Calculator Calculate the gravitational potential at a distance from a mass.
- Mole Fraction Calculator Calculate the mole fraction of each component in a two-component mixture.
- Otto Cycle Efficiency Calculator Calculate the thermal efficiency of an Otto cycle engine from its compression ratio.
- Rotational Kinetic Energy Calculator Calculate the rotational kinetic energy of a spinning object from its moment of inertia and angular velocity.
- Arrhenius Equation Calculator Calculate a reaction's rate constant from the pre-exponential factor, activation energy and temperature.
- Centrifugal Force Calculator Calculate the centrifugal force on an object moving in a circle from its mass, speed and radius.
- Ideal Gas Density Calculator Calculate the density of an ideal gas from its pressure, molar mass and temperature.
- Lever Mechanical Advantage Calculator Calculate the mechanical advantage and output force of a lever from the arm lengths and effort.
- Magnification Calculator Calculate the magnification of a lens and the image height from object and image distances.
- String Vibration Calculator Calculate the wave speed and fundamental frequency of a vibrating string from tension, linear density and length.
- Prism Deviation Calculator Calculate the minimum deviation angle of light through a prism from its apex angle and refractive index.
- Sound Intensity Level Calculator Calculate the sound intensity level in decibels from an acoustic intensity in W/m².
- Wave Frequency from Wavelength Calculate the frequency of a wave from its propagation speed and wavelength using f = v / λ.
- Frost Point Calculator Calculate the frost point — the temperature at which air becomes saturated with respect to ice.
- PPB Concentration Calculator Calculate parts-per-billion (ppb) concentration from solute and solution mass.
- Wind Chill Calculator Calculate the wind chill (feels-like) temperature using the NWS metric formula from air temperature in °C and wind speed in km/h, and see the frostbite risk level.
- Banking Angle Calculator Calculate the ideal banking angle of a curved road or track from speed and turn radius.
- First-Order Rate Constant Calculator Calculate a first-order rate constant, mean lifetime and time to 90% decay from a half-life.
- Magnitude Brightness Ratio Calculator Calculate how many times brighter one star is than another from their magnitudes (Pogson's law).
- PPM Concentration Calculator Calculate parts-per-million (ppm) concentration and percentage from solute and solution mass.
- Angular Resolution Calculator Calculate a telescope's angular resolution (Rayleigh criterion) from wavelength and aperture.
- Buoyant Force Calculator Calculate the buoyant force and displaced mass on a submerged object using Archimedes' principle.
- Molality Calculator Calculate the molality of a solution from the moles of solute and the mass of solvent in kilograms.
- Relativistic Kinetic Energy Calculator Calculate the relativistic kinetic energy of an object moving near light speed.
- Specific Heat Calculator Calculate heat energy from mass, specific heat and temperature change (Q = mcΔT).
- Beaufort Wind Scale Calculator Convert a wind speed to its Beaufort scale number and description.
- Elastic Collision Calculator Calculate the final velocities of two masses after a 1D elastic collision.
- pH / pOH Converter Convert between pH, pOH, hydrogen-ion and hydroxide-ion concentration at 25 °C.
- Relativistic Momentum Calculator Calculate the relativistic momentum of an object moving near light speed.
- Banked Curve Calculator Calculate the ideal (frictionless) banking angle for a curve from its radius and design speed.
- Focal Length Calculator Calculate the focal length and optical power of a thin lens from object and image distances.
- Standing Wave Calculator Calculate the harmonic frequency and wavelength of a standing wave on a string.
- Hall Voltage Calculator Calculate the Hall voltage across a conductor from current, magnetic field, carrier density and thickness.
- Capillary Rise Calculator Calculate the height a liquid rises in a capillary tube from surface tension, contact angle, density and radius.
- Equilibrium Constant Calculator Calculate the equilibrium constant K from the Gibbs free energy change and temperature.
- Projectile Flight Time Calculator Calculate the total flight time and time to peak of a projectile from launch speed and angle.
- Schwarzschild Radius Calculator Calculate the Schwarzschild radius (event horizon) of a given mass.
- Molarity Dilution Calculator Solve the dilution equation C1V1 = C2V2 to find the stock volume needed for a target concentration.
- Planet Density Calculator Calculate the mean density of a planet or celestial body from its mass and radius.
- Magnetic Flux Calculator Calculate the magnetic flux through a surface from field strength, area and angle.
- Gravitational Redshift Calculator Calculate the gravitational redshift of light escaping a massive body (weak field).
- Magnification of a Lens Compute the magnification of a thin lens from the image distance and object distance (m = -v/u), with image orientation.
- Lorentz Factor Calculator Calculate the Lorentz factor γ, time dilation and length contraction from a speed (% of light).
- Open Pipe Resonance Calculator Calculate the resonant frequency and wavelength of an open (both ends) pipe for a given harmonic: f = n·v/(2L).
- Submerged Weight Calculator Computes the apparent (submerged) weight of an object in a fluid using Archimedes' principle, from its mass, density, and the fluid density.
- Apparent Depth (Refraction) Calculator Computes how shallow an object appears when viewed across a refractive boundary, such as looking into water from air.
- Hydrostatic Pressure Force Compute the total hydrostatic force on a flat submerged surface from fluid density, depth to its centroid and area.
- Length Contraction Calculator Calculate relativistic length contraction for an object moving near light speed.
- Mass from Moles Calculator Calculates the mass of a substance from the number of moles and its molar mass (m = n × M).
- Wet-Bulb Temperature Calculator Calculate the wet-bulb temperature from air temperature and relative humidity (Stull formula).
- Reaction Quotient Calculator Calculate the reaction quotient Q and compare it with the equilibrium constant K to predict which way a reaction will proceed.
- Linear to Angular Speed Calculator Turns a rim or tangential speed and a radius into angular velocity in rad/s and in revolutions per minute using ω = v / r.
- Projectile Max Height Calculator Computes the maximum height a projectile reaches from its launch speed, angle, gravity, and starting height.
- Relativistic Aberration of Light Calculator Calculate the relativistic aberration of light: how an emission angle θ transforms to the observed angle θ′ for an observer moving at speed ratio β, via cos θ′ = (cos θ − β) ⁄ (1 − β cos θ).
- Total Internal Reflection Angle Calculator Calculates the critical angle above which total internal reflection occurs at the boundary between two media from their refractive indices.
- Gay-Lussac's Law Calculator Apply Gay-Lussac’s gas law (P₁/T₁ = P₂/T₂ at constant volume) to find a gas’s pressure after a temperature change, using absolute temperature.
- Thermal Expansion Calculator Calculate the linear thermal expansion of a material from its length, expansion coefficient and temperature change.