Chemistry calculators by section
Every calculator sits in one of nine sections. Open one to see its calculators.
n = m ÷ M
Grams to moles, moles to grams, particles.
- Calculate Molecules from Grams: Formula and Example0.9992 mol
- Calculate Molecules from Moles: Formula and Example6.022 × 1023 molecules
- Calculate Protons, Neutrons, and Electrons in an Atom
63 calculators Open →
c = n ÷ V
Molarity, molality, mg/mL to µM.
- Anderson-Darling Normality Test Calculator
- G/mL to Molarity Calculator: Convert Mass Concentration0.2000 mol/L
- HCl Normality Calculator and Equivalent Weight0.1000 eq/L
24 calculators Open →
C₁V₁ = C₂V₂
C₁V₁ = C₂V₂, dilution factor, serial dilution.
- C1V1 = C2V2 Calculator for Dilution1,000.00 mL
- C1V1 = C2V2 Calculator for Dilution10.00 µL
- C1V1 = C2V2 Calculator for Dilution Percent25.00 mL
11 calculators Open →
PV = nRT
Ideal gas, van der Waals, molar volume.
- CO2 Partial Pressure Calculator and Formula0.0004 atm
- Ideal Gas Pressure Calculator for Gallons654,871.1662 Pa
- Ideal Gas Volume Calculator: Formula and Examples24.4654 L
14 calculators Open →
n_B = n_A × b ÷ a
Mole ratios, product mass, percent yield.
- Arrhenius Equation Calculator: Activation Energy and Rate173,931.796874 s^-1
- Arrhenius Equation Calculator: Activation Energy and Rates52.906 kJ/mol
- Arrhenius Equation Derivation and Calculator1,739.318 s^-1
36 calculators Open →
pH = pKa + log([A⁻] ÷ [HA])
pH, Henderson–Hasselbalch, buffer ratios.
- Acid Titration Calculator: Find Unknown Concentration0.0800 mol/L
- Ka from Molarity: Calculate Acid Dissociation1.845 × 10−5 mol/L
- Lowest pKa Calculator: Compare Acid Strength-10.000 pKa
19 calculators Open →
Ā = Σ mᵢ × fᵢ
Average atomic mass, isotope mass, Rydberg.
- 24Na Beta Decay Calculator Example and Explanation329,803.802 nuclei
- 24Na Beta Decay Calculator Formula329,804 nuclei
- 24Na Beta Decay Calculator: Sodium-24 to Magnesium-245.515377 MeV
21 calculators Open →
q = m × c × ΔT
Specific heat, half-life, first-order decay.
- Air Enthalpy Calculator: Moist-Air Energy Explained318.67 kJ/kg dry air
- Change in Gibbs Free Energy: Formula and Meaning-24.907 kJ/mol
- Enthalpy Calculation Formula and Worked Example-57.20 kJ/mol
30 calculators Open →
pmol = ng × 1000 ÷ (bp × 617.96 + 36.04)
DNA moles, ligation ratio, protein molarity.
- Real-Time PCR Copy Number Calculator and Formula974,462,678 molecules
- RNA Copy Number Calculator: Convert Mass to Molecules1.873 × 1011 molecules
- Transcribe DNA to mRNA Calculator and Base-Pair Rules
7 calculators Open →