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.