Math & Numbers
Compute gravitational potential energy, mass, or height from the other two, with impact velocity
potential-energy-calculatorMath & Numbers
Compute range, max height, flight time, and the full trajectory of a projectile given speed, angle, and optional initial height
projectile-motion-calculatorMath & Numbers
Combine resistors in series, parallel, or an arbitrary +/| expression, with per-resistor voltage and power
resistor-series-parallel-calculatorMath & Numbers
Determine the limiting reagent and compute theoretical yield, actual yield, and percent yield from a balanced reaction.
reaction-stoichiometry-calculatorMath & Numbers
Calculate Gibbs free energy ΔG = ΔH − TΔS, reaction spontaneity, equilibrium temperature, and equilibrium constant K.
thermodynamics-gibbs-calculatorMath & Numbers
Decode and encode 4-band, 5-band, 6-band, and SMD resistor markings
resistor-color-code-calculatorMath & Numbers
Convert pounds per square inch to bar with configurable decimal precision
psi-to-barMath & Numbers
Convert pounds per square inch to kilopascals with configurable decimal precision
psi-to-kpaMath & Numbers
Convert therms to kilowatt-hours with configurable decimal precision
therm-to-kwhMath & Numbers
Convert tebibytes to terabytes with decimal vs binary interpretation, alternate-system comparison, and network-speed-aware transfer estimates
tib-to-tbMath & Numbers
Convert whole calendar years to exact days from a specified start year
years-to-daysMath & Numbers
Convert square meters to hectares with configurable decimal precision
square-meter-to-hectare