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🔬 Science Calculators

Scientific calculators for physics, chemistry, and engineering equations.

8 free calculators

Science is the language of the universe, and equations are its grammar. Whether you're a student working through a physics problem set, a chemistry lab technician preparing solutions, or an engineer troubleshooting a circuit, our science calculators provide instant, accurate results grounded in fundamental physical laws.

Physics and Electricity

The most fundamental relationship in electrical engineering is Ohm's Law: V = IR. Our Ohm's Law Calculator solves for any of the four variables — voltage, current, resistance, and power — given the other two. This makes it equally useful for electronics hobbyists wiring an LED circuit and professionals sizing electrical components.

For classical mechanics, the Force Calculator applies Newton's Second Law (F = ma) to find force, mass, or acceleration. The Wavelength Calculator uses the wave equation (v = fλ) to convert between frequency and wavelength for any type of wave — sound, light, or radio — across any medium.

Chemistry and Biology

The Molar Mass Calculator is an essential tool for any chemistry student. Type in a molecular formula (e.g., C₆H₁₂O₆ for glucose) and it instantly returns the molar mass in g/mol, parsing subscripts, parentheses, and all standard element symbols. The pH Calculator converts between pH values and hydrogen ion concentrations in both directions, with pOH and hydroxide ion concentration included as outputs.

For laboratory work, the Dilution Calculator uses the C₁V₁ = C₂V₂ formula to find any missing parameter in a dilution problem — starting concentration, starting volume, final concentration, or final volume. The Density Calculator solves the density triangle (ρ = m ÷ V) for any of the three variables.

Networking

For IT professionals and networking students, the Subnet Calculator accepts any IP address in CIDR notation and returns the network address, broadcast address, usable host range, and subnet mask — all the values needed for network design and troubleshooting.