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Convert volume per unit time, including US gallons per minute. US liquid gallons are different from Imperial gallons.
Convert mass transported per unit time. No fluid density is assumed because this is not a conversion to volumetric flow.
Convert coulombs and ampere-hours. An ampere-hour is 3,600 coulombs; converting charge to energy also requires voltage.
Convert electric potential difference between volts and metric prefixes. Prefix case matters: mV is millivolts while MV is megavolts.
Convert electrical resistance between ohms and metric prefixes. This changes only the unit, not circuit configuration.
Convert farads, microfarads, nanofarads and picofarads. Each prefix changes the scale by a power of ten.
Convert inductance between henries and metric prefixes. The result does not include frequency-dependent impedance.
Convert illuminance in lux, kilolux and foot-candles. Illuminance measures light arriving per unit area, not lamp power.
Convert thermal conductivity between SI-based units. A kelvin temperature difference has the same magnitude as a Celsius difference.
Convert mass per unit area, useful for paper, sheet materials and coatings. This quantity differs from three-dimensional density.
Find an indexed Fibonacci number using F₀ = 0 and F₁ = 1. Whole-number indices from 0 to 78 are supported.
Add the consecutive integers from 1 through n and count the corresponding triangular arrangement.
Find the single digit obtained by repeatedly adding the decimal digits of a nonnegative whole number.
Compare two nonnegative measurements using their mean as the base, without designating an original value.
Solve two equations ax + by = c and dx + ey = f when their coefficient matrix has a unique solution.
Find the vertex coordinates of y = ax² + bx + c and identify the extremum from the leading coefficient.
Find a triangle’s third side from two known sides and their included angle in degrees.
Solve the remaining triangle sides from two angles and the side opposite the first angle.
Find the minor circular segment area, chord length and arc length from a radius and central angle.
Calculate a spherical cap’s volume, curved area and base radius from the sphere radius and cap height.
Calculate a cylinder with two hemispherical ends using their shared radius and the straight section length.
Find an ellipse’s eccentricity and centre-to-focus distance from its major and minor semiaxes.
Measure the average absolute distance from the arithmetic mean of a numeric list.
Compare paired actual and predicted values with RMSE and mean absolute error in the original measurement unit.
Fit y = mx + b to paired observations by ordinary least squares and evaluate the fitted line at a chosen x.
Find the probability of at most k successes and its strict upper-tail complement in independent fixed-probability trials.
Find the probability of at most k events under a Poisson model with a supplied expected count.
Update a two-category prior using the probability of evidence within each category.
Find the probability that A or B occurs, allowing an explicitly supplied overlap between the events.
Estimate temperature with a constant ambient temperature and a supplied exponential cooling coefficient.
Calculate energy stored in an ideal Hooke-law spring from stiffness and displacement from its relaxed length.
Evaluate p = nRT/V with amount in moles, absolute temperature in kelvin and volume in cubic metres.
Find the wavelength corresponding to a positive momentum magnitude using the SI Planck constant.
Calculate the ideal oscillation frequency and period of an LC circuit from inductance and capacitance.
Newton Second Law: Calculate mass from Force magnitude, Acceleration magnitude. Check the formula, input units and worked result on this page.
Newton Second Law: Calculate acceleration magnitude from Force magnitude, Mass. Check the formula, input units and worked result on this page.
Classical Kinetic Energy: Calculate mass from Energy, Speed. Check the formula, input units and worked result on this page.
Classical Kinetic Energy: Calculate speed from Energy, Mass. Check the formula, input units and worked result on this page.
Classical Linear Momentum: Calculate mass from Momentum magnitude, Speed. Check the formula, input units and worked result on this page.
Classical Linear Momentum: Calculate speed from Momentum magnitude, Mass. Check the formula, input units and worked result on this page.
Average Force and Impulse: Calculate force magnitude from Impulse magnitude, Time interval. Check the formula, input units and worked result on this page.
Average Force and Impulse: Calculate time interval from Impulse magnitude, Force magnitude. Check the formula, input units and worked result on this page.
Uniform Normal Pressure: Calculate force magnitude from Pressure magnitude, Area. Check the formula, input units and worked result on this page.
Uniform Normal Pressure: Calculate area from Pressure magnitude, Force magnitude. Check the formula, input units and worked result on this page.
Average Mass Density: Calculate mass from Density, Volume. Check the formula, input units and worked result on this page.
Average Mass Density: Calculate volume from Density, Mass. Check the formula, input units and worked result on this page.
Hydrostatic Pressure Increase: Calculate density from Pressure magnitude, Local gravitational acceleration, Height difference. Check the formula, input units and worked result on this page.
Hydrostatic Pressure Increase: Calculate local gravitational acceleration from Pressure magnitude, Density, Height difference. Check the formula, input units and worked result on this page.
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