# PQ Calc — Conversions for SMPTE ST 2084

> Converts SMPTE ST 2084 (PQ) luminance and digital levels. (iPhone/iPad app by Avical.)

- Source: https://appshunter.io/ios/app/pq-calc/id1541419476 (this page in markdown: same URL + `.md`)
- Developer: [Avical](https://appshunter.io/developer/1534335247)
- Category: Photo & Video, Reference
- Price: $4.99
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 14.2 · 1 MB
- Languages: English
- Released: 2020-12-04
- Data updated: 2026-06-22
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/pq-calc/id1541419476/reviews.md

## What is PQ Calc?

PQ Calc offers a quick and easy way to convert values along the SMPTE ST 2084 (PQ) electro-optical transfer function (EOTF).

The app is bi-directional and will convert the luminance level (nit) to the digital level in Full, SMPTE, or SDI-Full range and vice versa.  Calculations are available in float, percent, 8bit, 10bit, 12bit, and 16bit.  

To use, enter a value in either the "Level" field or the "Nits" field and choose your range.  The application will then populate the other fields simultaneously-- it's that simple!

## Key features

- Bi-directional conversion
- Luminance (nit) to digital level
- Digital level to luminance (nit)
- Supports Full, SMPTE, SDI-Full ranges
- Calculations in float, percent, 8-16bit


## Frequently asked questions about PQ Calc

### What is PQ Calc used for?

PQ Calc is used to convert luminance levels (nits) to digital levels and vice versa, specifically for the SMPTE ST 2084 (PQ) electro-optical transfer function. This is essential for HDR video workflows.

### What ranges does PQ Calc support?

PQ Calc supports conversions for Full, SMPTE, and SDI-Full ranges. This flexibility allows users to adapt to different broadcast and video standards.

### What bit depths can PQ Calc handle?

The app can perform calculations in float, percent, 8bit, 10bit, 12bit, and 16bit. This comprehensive support ensures compatibility with various video formats and professional requirements.

### How do I use PQ Calc?

To use PQ Calc, simply enter a value in either the 'Level' or 'Nits' field and select your desired range. The application will then automatically populate the other fields simultaneously.

### Is PQ Calc available on Android?

Based on the provided data, PQ Calc is currently supported on iPhone and iPod devices. There is no information indicating Android compatibility.

### How much does PQ Calc cost?

PQ Calc is a paid application, priced at $4.99. This one-time purchase grants you access to all its conversion features.

### How often is PQ Calc updated?

PQ Calc was last updated on August 1, 2024, with version 1.02. This indicates that the app is actively maintained by its developer.

### Does PQ Calc have ads?

No, PQ Calc does not contain advertisements. As a paid application, it offers an ad-free experience for its users.

## Version history (last 3 releases)

### 1.02 — 2024-08-01

Updates for compatability.

### 1.01 — 2020-12-06

Fixed formatting of 16-bit nit values
Fixed screen layout on some phone models

### 1.0 — 2020-12-04

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-22.*