# QTc-Calculator

> ECG calculator

Canonical page: [https://chrome-stats.com/d/id1354439139](https://chrome-stats.com/d/id1354439139)

## Overview

- **ID:** `id1354439139`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Marian Stiehler
- **Category:** Medical
- **Rating:** 4.70 / 5 (51 ratings)
- **Version:** 8.0
- **Last updated:** 2025-12-21
- **First published:** 2018-03-10
- **Size:** 1.05 MB
- **Data as of:** 2026-09-07
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/qtc-calculator/id1354439139)
- **Website:** [https://www.short-qt-syndrome.info/qtc-calculator-self/](https://www.short-qt-syndrome.info/qtc-calculator-self/)
- **Privacy policy:** [https://www.marianstiehler.de/support/](https://www.marianstiehler.de/support/)

## Description

QTc-Calculator is a fast ECG QTc calculator for clinicians. Enter the heart rate or RR interval and the QT interval to compute QTc values across Bazett's, Fridericia's, Framingham's, Hodges's, Goto's, Mayeda's, Kawataki's, and Rautaharju's a and b formulas.

An Apple Watch companion app is included. Privacy-first by design: no personal data is collected and no server connections are required. The app carries medical disclaimers and should not be used as a substitute for professional medical advice.

## Rankings

- #172,438 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id1354439139)