Are my files uploaded?

No. This tool runs entirely in your browser tab. Files are read from your disk into memory and the result is generated locally.

Is it free? Are there limits or watermarks?

Free and open source (MIT). There are no file-size caps, daily quotas, accounts or watermarks.

Yes, once the page (and any engine it needs) has loaded, it keeps working without a connection thanks to the service worker cache.

Home / Science & Education / Physics Formula Solver

Solve common physics and chemistry formulas for any unknown: motion, forces, energy, circuits, waves and gases.

Free, no uploads, no sign-up. Runs 100% in your browser.

All maths runs in your browser, instantly, with no account. Leave one box empty and it is solved for, using exact rearrangement or a numeric solver.

Input: Numbers. Output: Text.

Are my files uploaded?: No. This tool runs entirely in your browser tab. Files are read from your disk into memory and the result is generated locally.
Is it free? Are there limits or watermarks?: Free and open source (MIT). There are no file-size caps, daily quotas, accounts or watermarks.
Does it work offline?: Yes, once the page (and any engine it needs) has loaded, it keeps working without a connection thanks to the service worker cache.

Unit Converter: Length, weight, temperature, data, speed and more.
Function Plotter: Graph several functions of x with zoom, pan, zeros and derivatives, then export PNG or SVG.
LaTeX Equation Renderer: Type LaTeX and get a crisp equation as PNG, SVG or JPG, or copy it as MathML for Word.
Periodic Table: Interactive periodic table with masses, categories, electron configurations and shell diagrams.