Physics

Calculate the voltage drop across a wire based on its material, gauge, and length. Essential for electrical system design to ensure proper voltage delivery.

Calculate horsepower (HP) from torque and RPM. A key tool for understanding the power output of engines and motors.

Determine the resistance value of a 4-band or 5-band resistor by selecting its color codes. An essential tool for electronics hobbyists and engineers.

Use Ohm's Law to calculate voltage, current, or resistance in an electrical circuit. A fundamental tool for anyone working with electronics.

Estimate the cost of running an electrical appliance. Calculate your electricity bill by entering the appliance's wattage, usage, and your local electricity rate.

Calculate the density of an object from its mass and volume. This tool helps you understand this fundamental property of matter with the formula d = m/v.

Calculate speed, distance, or time with this versatile tool. Enter any two variables to solve for the third, based on the formula speed = distance / time.

Calculate the cross product (or vector product) of two 3D vectors. This operation results in a vector that is perpendicular to both of the vectors being multiplied.

Explore Einstein's famous mass-energy equivalence equation, E=mc². Calculate the energy released from a given mass, or the mass equivalent of a given energy.

Calculate the magnitude (or length) of a 2D or 3D vector. This tool finds the Euclidean norm of a vector from its components.

Estimate a substance's boiling point at a different pressure using the Clausius-Clapeyron equation. Useful for chemistry and physics applications.

Calculate the boiling point of water at any given altitude. See why cooking times change at high elevations due to changes in atmospheric pressure.

Calculate entropy using Boltzmann's statistical formula or the thermodynamic definition.

Convert the volume of a gas from initial conditions to its volume at Standard Temperature and Pressure (STP).

Estimate the vapor pressure of a liquid at a given temperature using the Clausius-Clapeyron equation.

Calculate the vapor pressure of water at a specific temperature.

Estimate the diffusion coefficient of a particle in a fluid using the Stokes-Einstein equation.

Use Graham's Law to compare the rate of effusion of two different gases based on their molar masses.

Calculate the osmotic pressure of a solution using the van't Hoff equation, a key concept in chemistry and biology.

Use Dalton's Law to calculate the partial pressure of a gas in a mixture from its mole fraction and the total pressure.

A specialized tool for calculating the two-photon absorption (TPA) cross-section, relevant in nonlinear optics and microscopy.

Use the Young-Laplace equation to calculate the pressure difference across the interface of two static fluids, such as a droplet.

A useful tool for your physics needs.

A useful tool for your physics needs.

A useful tool for your physics needs.

Calculate the gear ratio between two gears to understand its effect on speed and torque in mechanical systems.

Calculate the output voltage from a resistor voltage divider circuit. A fundamental tool for electronics design and analysis.

Calculate the Material Removal Rate (MRR) for milling, turning, or drilling operations to optimize machining efficiency.

Calculate the pitch diameter of an external screw thread, a critical dimension for ensuring proper thread engagement.

Calculate the recommended spindle speed (RPM) for milling or turning operations based on cutting speed and tool diameter.

Calculate the angles and dimensions for a conical taper. An essential tool for machinists working on lathes.

Find key dimensions for standard metric or unified screw threads, including major, minor, and pitch diameters.

Convert between thread pitch (mm) and Threads Per Inch (TPI) for metric and imperial screw threads.

Calculate the true position tolerance for a feature in Geometric Dimensioning and Tolerancing (GD&T).

Calculate the required depth to drill a countersink hole for a flat-head screw to sit flush with the surface.

A versatile physics tool to calculate torque (force x distance) or work done (force x distance) in Newton-meters (Joules).

Estimate the flow rate in gallons per minute (GPM) from a nozzle or orifice based on the pressure in pounds per square inch (PSI).

Convert torque and RPM to horsepower. Understand the relationship between torque and power in engines and motors.