Chemistry & Biology Calculators

161 free chemistry & biology calculators in Other.

Acceleration CalculatorCalculate acceleration from velocity change and time.
Acid Base CalculatorSolve acid-base equilibrium problems.
Acid Base Titration CalculatorCalculate the titrant volume needed to reach equivalence and the concentration it reveals.
Acid Dissociation CalculatorCalculate Ka for an acid.
Acidity Level CalculatorConvert between pH and hydrogen ion concentration.
Acoustic Speed CalculatorCalculate the speed of sound in air.
Activation Energy CalculatorDetermine activation energy from rate constants measured at two temperatures.
Arrhenius Equation CalculatorCalculate how a rate constant changes with temperature using the Arrhenius equation.
Avogadro Number CalculatorConvert particles to moles using Avogadros number.
Bacteria Growth CalculatorModel bacterial population growth.
Bacterial Growth CalculatorProject bacterial population growth from generation time and starting count.
Base Dissociation CalculatorCalculate Kb for a base.
Basicity CalculatorConvert between pOH and hydroxide concentration.
Boiling Point ElevationCalculate boiling point elevation.
Boiling Point Elevation CalculatorCalculate how much a dissolved solute raises the boiling point of a solvent.
Boyle Law CalculatorApply Boyles law for pressure and volume.
Buffer pH CalculatorCalculate buffer pH with Henderson-Hasselbalch.
Carbon Dating CalculatorEstimate age using carbon-14 decay.
Cell Potential CalculatorCalculate standard cell potential from electrode potentials and identify the electrodes.
Charles Law CalculatorApply Charles law for volume and temperature.
Chemical Equation BalancerBalance chemical equations by coefficients.
Combined Gas Law CalculatorSolve combined gas law relationships.
Composition Percentage CalculatorCalculate percent composition of elements.
Compound Formula CalculatorFind the molecular formula from masses.
Concentration Percent CalculatorCalculate percent concentration of a solution.
Decay Rate CalculatorCalculate decay constant and rate.
Disorder Change CalculatorCalculate entropy change in a process.
DNA Base Pair CalculatorConvert between DNA length in base pairs, mass and physical length.
DNA Melting Temperature CalculatorEstimate the melting temperature of a DNA duplex or primer.
DNA Molecular Weight CalculatorCalculate the molecular weight of a DNA molecule from its length and strandedness.
Doppler Effect CalculatorCalculate observed frequency for moving sources.
Doubling Time CalculatorCalculate doubling time from a growth rate, and the growth it produces over a period.
Electrochemical Cell CalculatorCalculate cell voltage, capacity and energy for a practical electrochemical cell.
Electrochemistry CalculatorApply the Nernst equation for cell potential.
Electrode Potential CalculatorCalculate cell potential from electrodes.
Electrolysis CalculatorCalculate the energy, time and cost of an electrolysis process.
Electrolysis Yield CalculatorCalculate product mass from electrolysis charge.
Empirical Formula CalculatorDerive the simplest whole-number formula from percentage composition.
Energy Barrier CalculatorCalculate activation energy from rate data.
Enthalpy CalculatorCalculate enthalpy change in reactions.
Equilibrium CalculatorCalculate the equilibrium constant Keq.
Equilibrium Constant CalculatorCalculate the equilibrium constant from equilibrium concentrations.
Equivalence Point CalculatorDetermine the equivalence point volume and the pH expected there.
Excess Reactant CalculatorFind the excess reactant and leftover amount.
Exponential Growth CalculatorModel exponential growth of populations.
Falling Object CalculatorSolve free fall time and speed.
Faraday Law CalculatorApply Faradays law of electrolysis.
Faraday's Law CalculatorCalculate the mass deposited or consumed in electrolysis from charge passed.
Force Time Impulse CalculatorCalculate impulse from force and time.
Formula Mass CalculatorFind the empirical formula from percent composition.
Freezing Point DepressionCalculate freezing point depression.
Freezing Point Depression CalculatorCalculate how much a dissolved solute lowers the freezing point of a solvent.
Gas Law SolverSolve the ideal gas law for any variable.
Gas Reaction CalculatorSolve gas stoichiometry problems.
Gas Relation CalculatorSolve combined gas law relationships between states.
Gas Stoichiometry CalculatorRelate gas volumes to moles and reaction stoichiometry at given conditions.
GC Content CalculatorCalculate GC content of a sequence and the melting temperature it implies.
Gibbs Free Energy CalculatorCalculate Gibbs free energy change.
Gram to Mole ConverterConvert grams to moles using molar mass.
Gravimetric Analysis CalculatorSolve gravimetric analysis problems.
Gravity CalculatorCalculate gravitational attraction between masses.
Growth Rate CalculatorCalculate exponential growth rate from initial and final quantities over time.
Half Life Concentration CalculatorFind concentration after given half-lives.
Half Life Reaction CalculatorCalculate half-life and remaining quantity for first-order decay or reaction.
Half Reaction CalculatorSplit and balance half reactions.
Heat Energy CalculatorCalculate heat energy from mass and temperature.
Henderson Hasselbalch CalculatorCalculate buffer pH from the ratio of conjugate base to acid.
Henry's Law CalculatorCalculate dissolved gas concentration from partial pressure using Henry’s law.
Hooke Law CalculatorCalculate spring constant from force and stretch.
Hydrogen Ion CalculatorCalculate hydrogen ion concentration from pH and the dissociation it implies.
Hydroxide Ion CalculatorCalculate hydroxide ion concentration from pH or pOH.
Increase Rate CalculatorCalculate growth rate from a change.
Isotope Abundance CalculatorCalculate average atomic mass from abundances.
Ka CalculatorCalculate the acid dissociation constant from concentration and measured pH.
Kb CalculatorCalculate the base dissociation constant from concentration and measured pH.
Kinetic Rate CalculatorCalculate a reaction rate constant.
Le Chatelier CalculatorPredict how an equilibrium shifts when concentration, pressure or temperature changes.
Lens Equation CalculatorSolve thin lens equation for focal length.
Limiting Reactant CalculatorIdentify which reactant runs out first and how much product it permits.
Magnification CalculatorCalculate magnification from image and object size.
Mass Percent CalculatorCalculate the mass percentage of a component in a mixture or compound.
Mass Volume Ratio CalculatorCalculate density as mass per volume.
Mirror Equation CalculatorSolve mirror equation for image distance.
Molal Concentration CalculatorFind molality of a solution from solute and solvent.
Molality CalculatorCalculate molality from moles of solute and mass of solvent, and compare with molarity.
Molar Extinction Coefficient CalculatorDetermine the molar extinction coefficient from absorbance and known concentration.
Molar Mass CalculatorCalculate molar mass from atomic masses and the count of each element present.
Molar Ratio CalculatorCalculate mole fraction in a mixture.
Molarity Dilution CalculatorWork out molarity before and after dilution, and the mass of solute involved.
Mole CalculatorConvert grams, moles and molecules.
Mole Fraction CalculatorCalculate the mole fraction of each component in a mixture.
Mole to Gram ConverterConvert moles to grams.
Molecular Formula CalculatorDetermine the molecular formula from the empirical formula and measured molar mass.
Moles CalculatorConvert between mass, moles and number of particles for any substance.
Motion Energy CalculatorCalculate kinetic energy of a moving object.
Nernst Equation CalculatorCalculate cell potential at non-standard concentrations using the Nernst equation.
Newton Force CalculatorCalculate force from mass and acceleration.
Normality CalculatorConvert between normality, molarity and equivalent weight.
Nuclear Decay CalculatorCalculate remaining nuclei after decay.
Order of Reaction CalculatorDetermine reaction order from data.
Oscillation Period CalculatorCalculate pendulum period from length.
Osmotic Pressure CalculatorCalculate osmotic pressure from solute concentration and temperature.
Oxidation State CalculatorDetermine an element’s oxidation state within a compound or ion.
Parts Per Million CalculatorConvert concentrations to ppm.
PCR Mix CalculatorCalculate reagent volumes for a PCR master mix across multiple reactions.
Pendulum CalculatorCalculate pendulum period from length.
Percent Composition CalculatorCalculate the percentage by mass of each element in a compound.
Percent Yield CalculatorCompare actual product obtained against the theoretical maximum.
pH CalculatorCalculate pH from hydrogen ion concentration, and the pOH and hydroxide concentration.
pH from pOH CalculatorConvert between pH and pOH.
Phase Change Energy CalculatorCalculate energy in phase changes.
pKa CalculatorConvert between Ka and pKa and find the pH of half-dissociation.
pKb CalculatorConvert between Kb and pKb and relate it to the conjugate acid.
Planet Escape Speed CalculatorCalculate escape velocity from a planet.
pOH CalculatorCalculate pOH from hydroxide concentration and convert to pH.
Population Doubling CalculatorCalculate doubling time from a growth rate.
Population Growth Biology CalculatorModel logistic population growth toward a carrying capacity.
Pressure Volume Law CalculatorApply Boyles law to pressure and volume.
Protein Concentration CalculatorDetermine protein concentration from absorbance using the Beer-Lambert law.
Protein Molecular Weight CalculatorEstimate a protein’s molecular weight from its amino acid count.
Radioactive Dating CalculatorAge samples using radioactive isotopes.
Raoult's Law CalculatorCalculate the vapour pressure of a solution from mole fraction and pure component pressures.
Rate Constant CalculatorDetermine the rate constant for zero, first or second-order kinetics.
Rate Law CalculatorApply the Arrhenius equation to rates.
Reaction Mole Ratio CalculatorFind mole ratios in a balanced reaction.
Reaction Q CalculatorCalculate the reaction quotient Q.
Reaction Quotient CalculatorCompare the reaction quotient with the equilibrium constant to predict the direction of change.
Reaction Rate CalculatorCalculate the rate of a reaction from concentration change over time.
Reaction Speed CalculatorCalculate reaction rate from concentration change.
Redox Balancing CalculatorBalance redox reactions in acidic or basic medium.
Redox Reaction CalculatorBalance electron transfer in a redox reaction and calculate the cell potential.
Reduction Potential CalculatorCompare reduction potentials.
Refraction Index CalculatorCalculate refractive index from angles.
RNA Molecular Weight CalculatorCalculate the molecular weight of an RNA molecule and convert mass to moles.
Satellite Orbit CalculatorCalculate orbital velocity for a satellite.
Serial Dilution CalculatorPlan a serial dilution series and calculate the concentration at each step.
Snell Law CalculatorApply Snells law for refraction.
Solute Concentration CalculatorCalculate osmotic pressure of a solution.
Solution Concentration CalculatorCalculate the concentration of a solution.
Solution Dilution CalculatorCalculate the volume of stock solution and diluent needed for a target concentration.
Solution Prep CalculatorCalculate solute needed for a solution.
Solution Stoichiometry CalculatorSolve stoichiometry in solutions.
Sound Speed CalculatorCalculate the speed of sound in air by temperature.
Stoichiometry CalculatorConvert between reactant and product masses using balanced equation coefficients.
Stored Energy CalculatorCalculate gravitational potential energy.
Theoretical Yield CalculatorCalculate the maximum product mass a reaction can produce from the limiting reactant.
Thermal Energy CalculatorCalculate thermal energy from mass and temperature change.
Titration CalculatorSolve titration concentration problems.
Titration Curve CalculatorCalculate pH at any point along a weak acid titration curve.
Trajectory CalculatorSolve projectile trajectory and range.
Vapor Pressure CalculatorCalculate vapor pressure lowering.
Velocity Momentum CalculatorCalculate momentum from mass and velocity.
Voltage Cell CalculatorCalculate cell voltage from electrode potentials.
Volume Percent CalculatorCalculate volume percent concentration.
Volume Temperature LawApply Charles law to volume and temperature.
Wave Relation CalculatorConvert between wave speed, frequency and wavelength.
Wavelength Frequency CalculatorConvert between wavelength and frequency.
Weight Composition CalculatorCalculate mass percent of a component.
Weight on Another PlanetFind your weight on other planets and moons.
Work Done CalculatorCalculate work from force and displacement.
Work Energy CalculatorCalculate work from force and distance.