dubiumlabsUtilities

Utilities

Direct-calculation tools for lab work and study: convert units, solve proportions and summarize measurements, each with its own guide and examples.

16 tools

16 tools visible

Concentration ConverterConvert between molar, mass, ppm, Normality, enzyme activity and copies/µL unitsTemperature ConverterConvert temperatures across eight scales and temperature differences across the seven with compatible orientationPressure ConverterConvert between 14 pressure units (Pa, kPa, bar, atm, mmHg, Torr, psi, inHg, cmH₂O) with absolute and gauge modesEnergy ConverterConvert between 15 energy units (J, kJ, cal, kcal, kWh, eV, L·atm, BTU) plus a molar mode bridging eV, kJ/mol, kcal/mol, cm⁻¹ and RTAngle ConverterConvert angles between degrees, DMS, DDM, arcminutes, arcseconds, radians, milliradians, gons and turns, and slopes between %, ‰, degrees and a 1 : n ratioLength, Area and Volume ConverterConvert lengths, areas and volumes across 46 units, including nm, Å, inches, hectares, mL, gallons and more. See equivalents and results to 6 or 10 significant figures.Flow Rate ConverterConvert flow rates across 24 units, including µL/min, mL/h, L/min, m³/h, gallons per minute or per day and more. See equivalents and how the volume and time units change.Density, Mass and VolumeSolve for density, mass or volume from the other two, with 21 convertible units, relative density against water, air or your own reference, and a 16-substance catalogRule of ThreeDirect and inverse proportionsPercentageCalculates X % of a total, what percentage a part represents, and the change between two valuesAverage & DispersionMean, dispersion, sum and extrema of a series of measurementsSignificant Figures CalculatorCount how many significant figures a number as written actually carries, see which zeros count, and round it to N figures with half-to-even tiesUncertainty Propagation for Basic OperationsPropagate the standard uncertainty of two independent measurements through basic operations using a first-order linear approximationStopwatchScientific stopwatch with laps and CSV exportScientific CalculatorEvaluates math expressions with physical constants (c, h, Nₐ) and complex number supportFunction GrapherPlot up to 2 functions with automatic roots, maxima and minima