Chemistry Calculators

Average Atomic Mass Calculator

Compute average atomic mass from two isotopes using their masses and percent abundances.

Dilution Calculator (C1V1=C2V2)

Calculate dilution using C1V1 = C2V2.

Molarity Calculator

Calculate the molarity of a solution.

Percentage Concentration to Molarity Calculator

Free online Percentage Concentration to Molarity Calculator. Quickly calculate and get instant resul

pH Calculator

Calculate pH from hydrogen ion concentration.

Activation Energy Calculator

Computes activation energy from two rate constants at two temperatures using the Arrhenius equation.

Activity Coefficient Calculator

Actual Yield Calculator

Free online Actual Yield Calculator. Quickly calculate and get instant results.

Air Fuel Ratio Afr Calculator

Calculates air-fuel ratio (AFR) as mass of air divided by mass of fuel.

Alligation Calculator

Uses alligation to find mixing ratio (parts) of two strengths to reach a target concentration.

Arrhenius Equation

Atom Calculator

Converts sample mass to moles and number of atoms/particles using N = (m/M)·NA (NA = 6.02214076×10

Atom Economy Calculator

Compute atom economy (%) from desired product molar mass and total reactant molar mass.

Atomic Mass Calculator

Estimate isotope atomic mass from proton and neutron counts (mass number approximation).

Avogadro's Number Calculator

Calculate the number of particles from moles.

Beer Lambert Law

Calculate absorbance and transmittance using Beer–Lambert law (A = εlc).

Bleach Dilution Calculator

Free online Bleach Dilution Calculator. Quickly calculate and get instant results.

Boiling Point Altitude Calculator

Estimate water’s boiling point at a given altitude using a common linear approximation.

Boiling Point Calculator

Estimate boiling point vs pressure using Clausius–Clapeyron with ΔHvap and normal boiling point.

Boiling Point Elevation Calculator

Compute boiling point elevation and solution boiling point using ΔTb = i·Kb·m.

Bond Order Calculator

Calculate bond order from MO electron counts: (bonding − antibonding)/2.

Boyle's Law Calculator

Calculate using Boyle's Law (P1V1 = P2V2).

Buffer Capacity Calculator

Compute buffer capacity: β = |Δn| / (V·|ΔpH|) from an addition experiment.

Buffer PH Calculator

Free online Buffer PH Calculator. Quickly calculate and get instant results.