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Quick QBL is a custom calculator that measures blood volume more accurately than estimated blood loss.

Quantified blood loss can be calculated by measuring saturated materials and then subtracting the dry weight.

The conversion from weight to volume is simple, 1gm=1ml.

Quick QBL provides the weights of standard materials along with photos for easy identification.

QuickQBL is customizable. Add your own department's standardized materials.

QuickQBL saves time by allowing simple calculations quickly and providing essential information to healthcare providers when it really matters.


Visual catalog of items and dry weights

Rapidly sum weights and compute blood loss in a few taps.

Add your own photos and dry weights

Arrange frequently used materials at the top of your list

What’s New

Version 1.0.1

Added demo video to "How it works" section.
Optimized list layout

Ratings and Reviews

5.0 out of 5
8 Ratings

8 Ratings

CAW-1962 ,


If you are a labor and delivery nurse, you know how an accurate QBL can save a patient’s life. This app let’s you put in your wet weight and instantly subtract the dry weights of your pads, laps, etc. It even has easy to see pics of pads, laps, chux etc.

NewTXMusicFan ,


ive wished for this for YEARS!!! it helps immediately, and i got my items entered in a few minutes.

iooiqis ,

QBL app

Glad someone finally implemented! Would love to see a few things if at all possible:
1) can you have a CS and vaginal section separate? I would be great to select which delivery so you don’t have to scroll through all the vaginal items during the CS.
2) can you move items up and down that are already in the calculator? For example we would like large laps, floor drape together near the top without having to retake all the pictures.
3) can a hospital share this app for a small fee. Not all employees are going to download so might not work for us - we would just stay on paper if they have to incur the costs.

Cannot send this because every nickname is taken. Is this necessary?

Developer Response ,

Hello and thanks for your feedback!

We are working on a feature to separate items into groupings.

It is possible to move items. If you go to Setup and either add your own items or use the sample catalog, you can then click the Edit button in the upper right corner. This will reveal handles that can be used to drag the items up and down in the list. The calculator will use the same ordering.

We welcome inquiries from hospitals as we develop our offerings for organizations. Please use the Contact Us form on our website (https://www.quickqbl.com/contact-us). You can also get there by clicking the “App Support” link at the bottom of the App Store listing for Quick QBL.


17.7 MB

Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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