Engineering fundamentals
Physical principles, units, and basic equations for preliminary engineering work.
Choose the physical relationship, enter known quantities with units, and check the ideal-model assumptions.
Calculators in this category
Engineering Unit Converter
Convert common engineering quantities through the shared SI core.
Open calculator →Force Calculator: F = m·a
Calculate the resultant force on a body from mass and acceleration.
Open calculator →Density Calculator from Mass and Volume
Calculate the density of a material or fluid from mass and volume.
Open calculator →Pressure Calculator: Force per Area
Calculate the mean pressure on a surface from normal force and effective area with p = F/A.
Open calculator →Speed, Distance and Time Calculator
Calculate average speed from distance and elapsed time.
Open calculator →Acceleration Calculator
Calculate average acceleration from initial and final velocity and the time interval.
Open calculator →Kinetic Energy Calculator
Calculate the kinetic energy of a body from mass and speed.
Open calculator →Potential Energy Calculator
Calculate gravitational potential energy from mass, height change and gravitational acceleration.
Open calculator →Horizontal Projectile Range Calculator
Calculate range, fall time and impact speed of a horizontally launched body from launch height and initial speed.
Open calculator →Sound Level Addition Calculator (dB)
Calculate the total sound level of two incoherent sound sources from their individual levels in dB.
Open calculator →Sound Level Distance Calculator
Calculate the sound level of a point source at a new distance from a known level at a reference distance.
Open calculator →Terminal Velocity Calculator
Calculate the terminal velocity of a falling body at which weight and aerodynamic drag exactly balance.
Open calculator →Uncertainty Propagation Calculator for Sums
Calculate the combined standard uncertainty of the sum or difference of two independent measured quantities.
Open calculator →Speed of Sound in Air Calculator
Calculate the speed of sound in dry air from air temperature with the linear approximation, or the reverse.
Open calculator →Echo Distance Calculator
Calculate the distance to a reflecting surface from the speed of sound and the measured round-trip echo time.
Open calculator →Doppler Effect Calculator
Calculate the frequency heard by an observer from an approaching sound source from emitted frequency, speed of sound and source speed.
Open calculator →Work Calculator: Force Times Distance
Calculate mechanical work for a constant force acting along the direction of motion.
Open calculator →Frequency and Period Calculator
Convert the period of an oscillation or rotation to frequency and back.
Open calculator →Slope Calculator: Percent Grade from Rise and Run
Calculate the slope of a road, ramp or pipe from rise and horizontal run.
Open calculator →Centripetal Force Calculator
Calculate the inward radial force on a body in circular motion.
Open calculator →Centripetal Acceleration Calculator
Calculate the radial acceleration of a body moving on a circular path.
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