Tools

Small tools, games and visualizations. They run entirely in your browser.

Utilities

• Unit converter

  Convert length, mass, temperature, area, volume, speed, time and data size, including Chinese traditional units.

Research tools

• Concentration & solution prep

  Convert mass/molar concentration and ppm/ppb (basis must be chosen); C₁V₁=C₂V₂ dilution; mass needed for a stock solution.

• Spectroscopic unit converter

  Convert between cm⁻¹, µm, nm, THz, eV, meV, kJ/mol, kcal/mol and the equivalent temperature in K (wavelength is the vacuum wavelength).

• Frequency & time

  Hz ↔ period, angular frequency ω=2πf (Hz and rad/s shown together), rpm; pulse repetition rate, pulse width and duty cycle.

• AFM imaging parameters

  Pixel size, tip speed (retrace counted or not), time per pixel, frame time, and a sampling hint relating pixel size to tip radius.