# NMR Calculator 2

> Education

Canonical page: [https://chrome-stats.com/d/id6466729022](https://chrome-stats.com/d/id6466729022)

## Overview

- **ID:** `id6466729022`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Jae-Seung Lee
- **Category:** Education
- **Version:** 2.0
- **Last updated:** 2026-06-24
- **First published:** 2023-09-22
- **Size:** 1.92 MB
- **Data as of:** 2026-09-25
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/nmr-calculator-2/id6466729022)
- **Privacy policy:** [https://jaeseung16.github.io/NMRCalculator/privacypolicy2.html](https://jaeseung16.github.io/NMRCalculator/privacypolicy2.html)

## Description

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.

## Rankings

- #2,249,005 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id6466729022)