Mole calculator

The Moles and Molecular Quantities Calculator by UtileApp allows you to quickly convert between fundamental chemical quantities, applying the core formulas of molecular chemistry and the ideal gas law.

What you can calculate

🔹 Moles from mass using the molar mass of a compound.
🔹 Number of particles or atoms via Avogadro’s Number (6.022×10²³).
🔹 Gas volume or moles through the ideal gas law (PV = nRT).

Main features

• Unit flexibility: supports g, kg, L, mL, m³, atm, bar, Pa, K, and °C.
• Automatic conversions with high-precision results.
• Three integrated calculation modes:
  1️⃣ Mass ⇄ Moles
  2️⃣ Particles ⇄ Moles
  3️⃣ Gas ⇄ Moles / Volume

Use and benefits

Perfect for chemistry and physics students, teachers, and laboratory professionals, this tool helps you understand and apply the relationships between matter and substance quantities with ease and accuracy.

Example

18 g of water (H₂O) with molar mass 18.015 g/mol → 1 mole → 6.022×10²³ molecules.

With this calculator, you can instantly solve any problem involving moles, mass, or gas volume — ideal for learning, lab work, and quick chemical calculations!