Formulo — Physics Solver

Formulo is an interactive formula solver, dimensional verifier, and scientific metrology companion for high school, university students, and educators.

Tap any variable in a formula triangle to isolate and solve for it in real-time. Formulo converts inputs to SI base units, computes with 64-bit double precision, derives complete step-by-step algebraic solutions, and rounds results to match the least precise input's significant figures.

Everything runs 100% offline on your device. Zero accounts, zero ads, zero trackers, and strictly zero Android permissions.

WHAT YOU GET

• Interactive Formula Solver & Triangle
Select any equation and tap the variable you want to isolate. Formulo recalculates immediately with live validation and unit balance checks.

• Line-by-Line Solution Steps
View the complete algebraic walkthrough: governing physical law, variable isolation, SI unit substitutions, arithmetic progression, and significant figures derivation.

• 241 Formulas Across 5 Branches
Comprehensive coverage of:
- Mechanics (kinematics, Newton's laws, momentum, rotational dynamics, gravitation)
- Electricity & Magnetism (Coulomb's law, Ohm's law, Gauss's law, Biot-Savart, Faraday's induction)
- Thermal Physics (ideal gas law, Stefan-Boltzmann, Carnot efficiency, entropy)
- Waves & Optics (Snell's law, diffraction, Doppler effect, thin lens equation)
- Chemistry (molarity, pH, Arrhenius equation, Nernst equation, Gibbs free energy)

• Scope & Physical Boundary Cards
Every formula explicitly details its validity bounds: non-relativistic limits (v < 0.12c), ohmic resistor boundaries, ideal gas compressibility criteria, and quantum thresholds.

• SI Unit Converter (9 Physical Families)
Convert seamlessly across Length, Mass, Time, Current, Temperature, Force, Energy, Power, and Pressure, complete with conversion factors and SI base vectors.

• Buckingham Pi Dimensional Analysis
Verify physical consistency with explicit dimension vectors [M, L, T, I, Θ, N, J] and dimensional homogeneity checks across famous physical laws.

• 60 CODATA Fundamental Constants
Explore universal constants (c, h, e, kB, NA, G, ε0, μ0) with clear distinctions between exact 2019 SI defining values and experimentally measured values with relative standard uncertainties.

• 8 Laboratory Themes
Personalize your study space with 8 chalkboard and lab parchment textures: Graphite Chalk, Mechanics Blue, Electricity Amber, Thermal Crimson, Quantum Violet, Chemistry Emerald, Obsidian Matrix, and Paper Lab.

• Zero Permissions & Complete Privacy
Formulo does not ask for network access, storage, contacts, or location. Your calculations never leave your phone.

METROLOGICAL DISCLAIMER
Formulo computes in double precision. It is a study and homework tool, not a metrology instrument.