Science
Science calculators make an explicit model easier to evaluate. This collection separates physics, electrical relationships, chemistry and weather estimates. Start by identifying the assumptions: uniform acceleration is not the same as arbitrary motion, an ideal gas is not every real gas, and a component-level electrical formula does not design an installation. The correct tool is the one whose assumptions fit the problem, not simply the one with a familiar output unit.
Start with these tools
Acceleration Calculator
Calculate acceleration from change in velocity over time.
Density Calculator
Calculate density in kilograms per cubic meter and grams per cubic centimeter.
Dew Point Calculator
Calculate the dew point temperature from current air temperature and relative humidity.
Displacement from Average Velocity and Elapsed Time
Multiply average velocity by elapsed time to find signed displacement.
Displacement from Initial and Final Velocities
Use endpoint velocities and elapsed time for displacement under constant acceleration.
Enter a consistent unit system and use signed values when direction matters. A negative displacement can be meaningful; a negative elapsed duration usually needs investigation. Compare the result with an order-of-magnitude estimate and read the limitations before treating it as a measurement. These pages do not replace a laboratory method, approved design, equipment data sheet or local safety requirements. Save a worked input set so another person can reproduce the arithmetic, but keep identifying information out of shared links. Closely related tools remain separate when they solve for different quantities.
physics
Acceleration Calculator
Calculate acceleration from change in velocity over time.
Density Calculator
Calculate density in kilograms per cubic meter and grams per cubic centimeter.
Displacement from Average Velocity and Elapsed Time
Multiply average velocity by elapsed time to find signed displacement.
Displacement from Initial and Final Velocities
Use endpoint velocities and elapsed time for displacement under constant acceleration.
Displacement from Initial Velocity and Acceleration
Evaluate the displacement equation using an initial velocity, constant acceleration and duration.
E = mc² Calculator
Convert mass to rest energy with Einstein’s mass-energy equivalence.
Elastic Potential Energy Calculator
Calculate energy stored in a stretched or compressed ideal spring.
Force Calculator
Calculate net force, mass, or acceleration from Newton’s second law.
Friction Calculator
Calculate friction force from a coefficient of friction and normal force or mass.
Gravitational Potential Energy Calculator
Calculate gravitational potential energy near a planet’s surface.
Hooke's Law Calculator
Solve spring force, spring constant, or displacement using Hooke’s law.
Horsepower Calculator
Determine an engine's mechanical horsepower by providing its torque output and rotational speed (RPM).
Impulse Calculator
Calculate impulse, average force, or contact time from J = FΔt.
Impulse-Momentum Calculator
Calculate impulse and momentum change from mass and initial/final velocity.
Kinetic Energy Calculator
Calculate translational kinetic energy, mass, or speed.
Mass Calculator
Calculate the total mass of an object based on its density and volume.
Momentum Calculator p = mv
Calculate linear momentum, mass, or velocity.
Pressure Calculator
Calculate pressure, force, or area using P = F/A.
Speed Calculator
Calculate average speed and pace from distance and elapsed time.
Uniformly Accelerated Motion Calculator
Solve one constant-acceleration motion variable from standard one-dimensional kinematic equations.
Final Velocity after Constant Acceleration
Add the change in velocity from constant acceleration to a known initial velocity.
Average Velocity from Position Change
Divide signed position change by elapsed time to find average velocity over an interval.
Wavelength Calculator
Calculate wavelength, wave speed, or frequency.
Weight Calculator (Physics)
Calculate weight force, mass, or gravitational acceleration.
Weight on Planets
Calculate your weight on different celestial bodies in our solar system.
Work Calculator (Physics)
Calculate mechanical work from force, displacement, and the angle between them.
weather
chemistry
Ideal Gas Law Calculator
Solve pressure, volume, amount, or absolute temperature for an ideal gas in SI units.
Molarity Calculator
Calculate the molar concentration of a solute in a solution by mass, volume, and molar mass.
Molecular Weight
Calculate molar mass from a neutral molecular formula, including nested groups and hydrate notation.
electrical
Ohm's Law Calculator
Calculate voltage, current, resistance, and power from a selected known pair.
Resistor Color Code
Decode the resistance value and tolerance of axial resistors using the standard electronic color code system.
Voltage Drop Calculator
Calculate voltage drop in a wire run (Single Phase).
Frequently asked questions
How do I choose a tool from Science?
Start with the quantity you need to solve for, then compare the required inputs and assumptions before entering values.
Are results in Science guaranteed?
No. Read the formula, limitations and reference information on the individual calculator. Entered example rates are not current offers or professional advice.
Can I save a calculation from Science?
The calculator pages support browser-local project and share controls. Shared links and exported files may contain your inputs.