Chemistry calculations, made clear.
Enter a chemical formula or reaction and get the result with the working shown.
QUICK START
What are you working with?
Chemical Formula
Molar Mass Calculator
Calculate the molar mass of H₂O, NaCl, Ca(OH)₂, and more.
Calculate Molar Mass
Chemical Formula
Atom Counter
See exactly how many atoms of each element are in a formula.
Count Atoms
Chemical Formula
Percent Composition Calculator
See how much of a compound's mass comes from each element.
Calculate Composition
Composition
Empirical Formula Calculator
Turn element percentages or masses into the simplest whole-number formula.
Find Empirical Formula
Mass & Moles
Moles Calculator
Convert between mass and moles using molar mass.
Calculate Moles
Chemical Equation
Chemical Equation Balancer
Balance a chemical equation and verify every element.
Balance Equation
FORMULA → EVERYTHING
Enter a formula. Inspect it several ways.
H₂O
Molar mass
18.015 g/mol
Atoms
3 atoms
Composition
H: 11.19% · O: 88.81%
Moles
1 mol = 18.015 g
The same chemical formula powers multiple Chemistry Inspect tools, so you can move from one calculation to the next without starting over.
REACTION → CALCULATION
From equation to reaction results
2 H₂ + O₂ → 2 H₂O
WHY CHEMISTRY INSPECT
Chemistry tools without the clutter.
Clear calculations
See the formula, result, and actual working instead of only getting a number.
One chemistry engine
Formula parsing, atomic weights, and calculations are shared across the site, so every tool gives the same answer.
Browser-only
Calculations run on your device. Nothing is uploaded.
FAQ
Chemistry Inspect questions
What is Chemistry Inspect?
Chemistry Inspect is a collection of browser-based chemistry tools for chemical formulas, reactions, amounts, solutions, and acids and bases. Calculations run in your browser without uploading your data.
What chemistry calculators are available?
Chemistry Inspect includes tools for molar mass, atom counting, percent composition, empirical formulas, molecular formulas, mole fraction, atomic notation, moles, chemical equation balancing, redox balancing, stoichiometry, limiting reagents, percent yield, molarity, molality, calorimetry, gas density, buffer pH, dilution, ideal gas law, and pH.
Can I calculate the molar mass of a chemical formula?
Yes. Enter a formula such as H₂O, NaCl, Ca(OH)₂, or C₆H₁₂O₆ to calculate its molar mass and inspect the element-by-element calculation.
Can I use the same chemical formula in different calculators?
Yes. Chemistry Inspect uses a shared formula engine across related tools. A formula can be used to calculate molar mass, count atoms, find percent composition, calculate moles, and perform other supported calculations.
Can Chemistry Inspect balance chemical equations?
Yes. The Chemical Equation Balancer finds the smallest whole-number coefficients and verifies that each element has the same number of atoms on both sides of the equation.
Can I calculate stoichiometry and limiting reagents?
Yes. The Stoichiometry Calculator uses a balanced equation to calculate the amount of one substance from another. The Limiting Reagent Calculator compares the reactants to determine which one is consumed first and calculates theoretical yield and excess reactant.
Do Chemistry Inspect calculations run online or on my device?
The calculations run in your browser. Chemistry Inspect does not need to upload your chemical formulas or calculation inputs to a server.
Is Chemistry Inspect free?
Yes. The Chemistry Inspect tools are free to use directly in your browser without requiring an account.