Science & Engineering Calculators

Estimate water's boiling temperature based on elevation.

Enter the source frequency, velocities and speed of sound to compute the observed frequency using the Doppler effect.

Calculate the speed required to break free from a planet or moon's gravity.

Apply Newton's second law to calculate force from mass and acceleration. Provide values for both to see the resulting force in newtons.

Calculate gravitational potential energy by multiplying mass, gravitational acceleration, and height.

Enter weekly plastic waste and recycling rate to estimate annual plastic sent to landfills.

Determine the pressure exerted by a static fluid at a given depth using ρ g h.

Estimate pressure using the ideal gas law.

Calculate the resonant frequency where inductive and capacitive reactances cancel in an LC circuit.

Calculate the resistor required for an LED circuit using supply voltage, LED forward voltage, and desired current in milliamps.

Use Kepler's third law to estimate how long an object takes to complete an orbit around a central mass.

Calculate the pH of a solution from its hydrogen ion concentration.

Determine the horizontal range of a projectile using initial velocity, launch angle, and gravity.

Calculate the remaining quantity of a radioactive substance after a specified time using its half-life.

Compute the approximate age of an organic sample using the remaining percentage of carbon-14 compared to a modern reference.

Find the RC time constant (τ) by multiplying resistance and capacitance.

Determine the flow regime of a fluid using the Reynolds number.

Estimate RT60 using Sabine or Eyring formulas from room dimensions and absorption.

Estimate wind force on a solar panel using wind speed, exposure factor, pressure coefficient, and panel area.

Calculate the heat energy required to change the temperature of a substance using Q = m·c·ΔT.

Compute the restoring force of a spring using Hooke's Law (F = k × x).

Estimate stellar luminosity from radius and temperature.

Approximate the boiling point of water based on elevation above sea level.

Divide engine thrust by vehicle weight to assess performance.

Enter the distance a ruler falls before you catch it to compute your visual reaction time.