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.

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.

Estimate the electrical power generated by a hydroelectric turbine based on water flow rate, height difference (head), and efficiency.

Estimate the number of solar panels needed to power your home based on your average electricity consumption and local sunlight hours.

Calculate the expected power output (wattage) of a single solar panel based on its size, efficiency, and the current solar radiation.

Estimate the power output of a wind turbine based on factors like wind speed, blade length, and turbine efficiency.

Estimate the theoretical maximum hull speed of a displacement boat based on its waterline length.

Estimate the horsepower gain from adding a turbocharger or supercharger to an engine.

Calculate the Brake Specific Fuel Consumption (BSFC) to measure an engine's fuel efficiency.

Calculate the cost savings and environmental benefits of carpooling by comparing solo driving expenses to shared ride costs.

Analyze your daily commute by calculating travel time, distance, and potential costs, helping you optimize your route and budget.

Calculate the static compression ratio of an engine, a key parameter for determining performance and fuel requirements.

Estimate the theoretical cylinder pressure (in PSI) based on an engine's compression ratio, useful for performance tuning and diagnostics.

Calculate the headwind and crosswind components for aviation and outdoor sports, ensuring safety and performance adjustments.

Estimate your travel time by inputting the distance and average speed of your journey. Perfect for planning road trips and daily commutes.

Convert engine running hours into an estimated equivalent mileage, useful for tracking maintenance on equipment and vehicles without odometers.

Estimate your exposure to cosmic radiation during air travel. Understand the dose received based on flight duration and altitude.

Calculate the total fuel cost for a trip by entering distance, fuel efficiency (MPG or L/100km), and gas price.

Determine the required fuel pump flow rate (in LPH or GPH) to support a specific engine horsepower. Essential for performance tuning and building fuel systems.

Estimate the total cost of gasoline for a trip based on distance, your vehicle's fuel efficiency (MPG), and the price per gallon.

Understand your vehicle's Gross Vehicle Weight Rating (GVWR) to ensure you don't exceed its maximum safe weight with cargo, passengers, and trailer tongue weight.

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

Convert miles driven into a monetary cost. This calculator is perfect for calculating commute expenses or reimbursements based on a per-mile rate.

Calculate your vehicle's fuel efficiency in Miles Per Gallon (MPG). Track your gas mileage to monitor vehicle performance and save on fuel costs.

Convert distances between nautical miles, statute miles, and kilometers. Essential for maritime and aviation navigation.

Calculate engine RPM based on tire size, axle ratio, and transmission gear. Also works for pulley systems. A crucial tool for mechanics and performance tuners.

Determine the correct speedometer gears to use after changing tire size or axle ratio, ensuring your speedometer remains accurate.

Estimate the cost to fully charge your Tesla at home or at a Supercharger station, based on battery size and electricity rates.

A conceptual tool to explore strategies for finding the best value when purchasing event tickets.

Compare different tire sizes to see how they affect your speedometer, ride height, and other vehicle characteristics.

Calculate traffic density in vehicles per mile or kilometer, a key metric for analyzing traffic flow and congestion.

Estimate the appropriate turbocharger size for your engine based on displacement, RPM, and desired boost pressure.

Estimate your vehicle's wheel horsepower (WHP) by accounting for drivetrain loss from its rated flywheel horsepower.

Determine how a new wheel's offset and width will affect its position relative to the car body.

Calculate the minimum recommended winch pulling capacity for your vehicle based on its Gross Vehicle Weight Rating (GVWR).

Estimate wind speed based on the orientation and extension of a standard airport windsock.