NMR Calculator 2

The app shows a list of isotopes with non-zero nuclear spin angular momentum. Select an isotope to view its NMR properties and calculate fundamental NMR parameters.

Information section
For a chosen isotope, this section displays the atomic symbol with mass number, nuclear spin angular momentum, gyromagnetic ratio, and natural abundance.

Calculator section
Update any one parameter in a subsection to recalculate the others.
- Larmor frequencies: External magnetic field and the corresponding Larmor frequencies for the chosen isotope, the proton, and the free electron.
- Time domain: Number of data points, acquisition duration, and dwell time.
- Frequency domain: Number of data points, spectral width, and frequency resolution.
- Pulse 1: Pulse duration, flip angle, and RF amplitude in Hz and μT.
- Pulse 2: Pulse duration, flip angle, RF amplitude in Hz, and RF power relative to Pulse 1.
- Ernst angle: Ernst angle and repetition time for a given T₁ relaxation time.

NMR Assistant
An on-device AI assistant scoped to NMR topics, available where Apple Intelligence is supported. Ask questions in plain language — the assistant answers using the same calculation engine that powers the calculator, so results are always physically consistent.