Physics Formula Reference & Calculator
Browse 50+ physics formulas across mechanics, electricity, waves, thermodynamics, modern physics, and optics. Solve any formula for any variable, validate required inputs, convert units, run dimensional analysis, and get sig-fig-aware results. Built-in constants (g, c, h, k, G, R, N_A). 100% client-side — 18 extra features including CSV/text export, history, shareable URL, search filter, difficulty markers.
About Physics Formula Reference & Calculator
Browse 50+ physics formulas across mechanics, electricity, waves, thermodynamics, modern physics, and optics. Solve any formula for any variable, validate required inputs, convert units, run dimensional analysis, and get sig-fig-aware results. Built-in constants (g, c, h, k, G, R, N_A). 100% client-side — 18 extra features including CSV/text export, history, shareable URL, search filter, difficulty markers. Everything runs locally in your browser — your data never leaves your device.
How to use
- Enter your input in the tool above.
- Adjust any options to your preference.
- Use the Copy or Download buttons to save the result.
- Everything happens locally — your data never leaves your browser.
FAQ
How does the physics formula calculator work?
Pick a category (mechanics, electricity, waves, thermodynamics, modern-physics, or optics), then pick a formula. Enter known values as 'variable=value' per line (e.g. mass=10, acceleration=9.8), choose which variable to solve for, and the tool substitutes knowns and solves for the unknown. Required-variable validation flags missing inputs before computing.
How many formulas are included?
50+ formulas across 6 categories: Newton's laws, kinematics, gravitation, work-energy-power, Ohm's law, Coulomb's law, wave relationships, ideal gas law, calorimetry, mass-energy equivalence, lens/mirror equations, and more. Each formula carries difficulty (basic/intermediate/advanced) and a related-formula cross-reference.
Does it handle unit conversion and significant figures?
Yes. Common physics units (m/s ↔ km/h ↔ mph, J ↔ cal ↔ kWh) are convertible via the unit converter. Results are rounded using significant-figure rules so 9.81 m/s² × 10 kg gives 98 N not 98.000001.
What extra features does this tool have compared to others?
(1) 6 physics categories. (2) 50+ formula database built-in. (3) Formula evaluator (substitute + solve). (4) Variable validator. (5) Unit converter for physics units. (6) Reference card per formula. (7) Text report renderer. (8) CSV renderer. (9) Copy + Download .txt + Download CSV. (10) History (localStorage, last 20). (11) Shareable URL. (12) Summary stats. (13) Search/filter. (14) Common constants (g, c, h, k, G, R, N_A). (15) Dimensional analysis checker. (16) Significant figures handler. (17) Difficulty marker. (18) Cross-reference (related formulas).
Is my data sent anywhere?
No. All calculations run locally in your browser. The formula database and constants are bundled in the page. History is stored in localStorage on this device only.
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