Formulary: Formula Calculator

Solve any formula for any variable, and see every step of the working. Formulary+ holds 4,800+ formulas from physics, math, chemistry and 13 fields of engineering. Pick a formula, choose the unknown, type what you know, and get the answer with each step shown. It works offline, so you can use it in class or the lab. SOLVE, CHECK, LEARN • Formula calculator: choose the unknown, enter the rest, and see the answer worked out step by step. Thousands of formulas have one. • Checks: put your own numbers into an identity or a bound and see whether it holds, and by how much. • Worked examples: a full calculation with real numbers for the harder equations. • Notes: write on any formula and export them as Markdown. FREE TOOLS • Unit converter: 16 quantities and about 150 units • Physical constants: 61 values at full CODATA 2022 precision • Search by name, by symbol, or with a typo • Real LaTeX rendering, with every variable defined and its SI unit given 16 DISCIPLINES Mathematics · Physics · Chemistry · Geometry · Mechanical · Electrical · Civil · Chemical · Environmental · Geological Engineering · Computer Science · Biology & Biomedical · Geophysics · Geochemistry · Meteorology · Astronomy & Astrophysics Also: financial math (loans, annuities, CAPM, WACC) and clinical calculations (QTc, drip and infusion rates). BUILT FOR Engineering and science students · exam prep (FE, PE, GRE, AP, A-level) · teachers · engineers in the field FREE TO TRY Browse and search everything for free. Open 5 formulas a day, and solve 1 formula a day in full. Formulary Pro removes both limits and unlocks checks, worked examples and notes. Choose a yearly subscription or a one-time Lifetime purchase. Formulary Pro Yearly is an auto-renewable subscription. Payment is charged to your Apple Account at confirmation of purchase. It renews automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel it in your Apple Account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://kingerders.github.io/formulary/privacy