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QTc-Calculator

QTc-Calculator

ECG calculator

52 ratings
4 reviews
🏥 Medical
Free

Details

  • Released
  • Updated
  • March 10, 2018
  • December 21, 2025

Developer

Marian Stiehler
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About

This medical app calculates QTc using nine different formulas. It allows users to input heart rate or RR interval and QT interval length for quick results. An Apple Watch app is also included for convenient access.

✓Nine QTc calculation formulas
✓Input heart rate or RR interval
✓Input QT interval length
✓Apple Watch app integration
✓No personal data collection
✓Offline functionality
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What's New in QTc

8.0

December 21, 2025

- add comparison value - new icon - mode for red green blindness

More

User reviews

Most RecentHighest RatedLowest Rated

Sehr toll

Finde die App wunderbar. Medizinisch bestmöglich.

Wünschenswert wäre natürlich eine Integration mit Apple Watch. Das kann ich aber natürlich bei einer Gratis App nicht verlangen.

Also volle ⭐️⭐️⭐️⭐️⭐️
Mikachu PokémannMikachu Pokémann

Says Apple watch app included

I'm not sure what your supposed to put in the fields, but the way it is described, if you have an apple watch, the app will tell you your qt interval when you do an ecg. What a waste of time and money.
Eric DallasEric Dallas

Too advanced for lay folk

I just don't know what is good or bad. Seems convenient. But it is beyond my grssp and I have four college degrees, hustt not iin anything about medicing.
Birdies1951Birdies1951

Der beste QTc-Rechner im Store

Schnell, bedient sich super, funktioniert top.
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FAQ

What is QTc-Calculator used for?

QTc-Calculator is used by medical professionals to quickly calculate the corrected QT interval (QTc) using nine different formulas. It helps in assessing cardiac repolarization.

Does QTc-Calculator collect personal data?

No, QTc-Calculator does not collect any personal data and does not make any connections to a server. Your privacy is maintained as no personal information is stored or transmitted.

What formulas are included in QTc-Calculator?

QTc-Calculator includes nine formulas for QTc calculation: Bazett's, Fridericia's, Framingham's, Hodges's, Goto's, Mayeda's, Kawataki's, and Rautaharju's a and b.

Is QTc-Calculator available on Apple Watch?

Yes, QTc-Calculator includes a dedicated Apple Watch app, allowing for convenient QTc calculations directly from your wrist.

What devices does QTc-Calculator support?

QTc-Calculator supports iPhone and iPad devices. It is designed for use on Apple's mobile and tablet platforms.

How often is QTc-Calculator updated?

The latest version of QTc-Calculator is 8.0, and it was last updated on December 21, 2025. This indicates a commitment to ongoing development and improvements.

What is the age rating for QTc-Calculator?

QTc-Calculator has an age rating of 17+. This is typical for medical applications that require a certain level of understanding and professional context.

Can QTc-Calculator be used for medical diagnosis?

No, QTc-Calculator explicitly states that it provides information only and is not medical or treatment advice. It should not be relied upon for diagnosis or treatment recommendations.