# Studio Calculator — Smart Pro Audio Calculator

> Smart audio calculator for music production and audio engineering. (iPhone/iPad app by The RedHouse Apps.)

- Source: https://appshunter.io/ios/app/studio-calculator/id1579974135 (this page in markdown: same URL + `.md`)
- Developer: [The RedHouse Apps](https://appshunter.io/developer/384363265)
- Category: Music, Utilities
- Price: $1.99
- Rating: 5.00/5 from 2 App Store ratings
- Age rating: 4+
- Requires: iOS 15.6 · 3 MB
- Languages: American English, German (Germany), Brazilian Portuguese, Chinese (Simplified, China), European Spanish
- Released: 2022-01-02
- Data updated: 2026-08-13
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/studio-calculator/id1579974135/reviews.md

## What is Studio Calculator?

Studio Calculator is your go-to app for fast, smart, and accurate music-related calculations. Simply add the values you know and the app will intelligently figure out what it can calculate for you..

No more digging through menus or websites mid-session. Stay in focus and get instant answers for:

BPM & tempo calculations
Delay & phase alignment
Time-stretch & pitch shift
Duration & file size
Frequency to MIDI note
Frame-based timing for video

...and much more


### Real-World Examples:
• Microphone delay in samples?
Just enter the distance in meters. The app gives you time in seconds, samples, and more (automatically adjusted to your sample rate)

• Need all delay times for a BPM?
Tap or enter the BPM—see delay times in ms, seconds, or Hz instantly.

• Have a 2-bar loop and want the BPM?
Enter the loop length in seconds or samples and the number of bars and get the correct BPM for any time signature.

• Changing from 440 Hz to 432 Hz?
Input both frequencies and get the pitch shift in semitones and the time-stretch percentage.

• Song duration from BPM and bars?
Enter BPM and bar count, total time is calculated.

• Working in 6/8?
Input your metronome tempo to get the DAW’s BPM.

• Total time of multiple songs?
Add all times and get the sum.

• Need to know disk space for a 75-minute multitrack?
Enter the time, set your sample rate, bit depth, and channel count; your file size is calculated.


### Features:
• Clean, minimalist UI with dark mode
• Copy any result and reuse it as new input.
• Tap tempo input for fast and accurate BPM entry
• Supports irregular, simple, and compound time signatures
• Accurate 64-bit floating-point calculations
• Share an image of your calculation 
• Built-in support for 9 standard frame rates
• Frequency -> MIDI note conversion
• File size calculations based on duration and audio specs
• Customizable: sample rate, bit depth, channel count, time signature, tuning and frame rate
• Collapsible results for a clean overview


### The Studio Calculator is your perfect assistant. Give it the values you have, and it will calculate everything there is to know.

More calculations are coming! If you’re missing a calculation, let us know, your feedback is much appreciated.

## Key features

- BPM & tempo calculations
- Delay & phase alignment
- Time-stretch & pitch shift
- Duration & file size
- Frequency to MIDI note
- Frame-based timing
- Tap tempo input


## Frequently asked questions about Studio Calculator

### What kind of music calculations can Studio Calculator perform?

Studio Calculator handles a wide range of music calculations including BPM and tempo, delay and phase alignment, time-stretch and pitch shift, duration and file size, frequency to MIDI note conversion, and frame-based timing for video.

### How does Studio Calculator handle microphone delay calculations?

You can enter the microphone distance in meters, and the app will provide the delay time in seconds, samples, and other relevant units, automatically adjusted to your sample rate.

### Can Studio Calculator help me find delay times for a specific BPM?

Yes, by tapping or entering the BPM, Studio Calculator instantly shows you all the necessary delay times in milliseconds, seconds, or Hz.

### How does Studio Calculator calculate file size for audio projects?

You can input the duration, sample rate, bit depth, and channel count of your audio project, and the app will accurately calculate the required file size.

### Does Studio Calculator support different time signatures?

Yes, Studio Calculator supports irregular, simple, and compound time signatures, and allows for customization of time signature settings.

### What is the price of Studio Calculator?

Studio Calculator is a paid app, priced at $1.99.

### On which devices can I use Studio Calculator?

Studio Calculator is available for iPhone, iPad, and iPod touch.

### How often is Studio Calculator updated?

The latest version, 2.1, was released on February 1, 2026, indicating regular updates are provided.

## Version history (last 5 releases)

### 2.1 — 2026-02-01

• Added full support for Logic Length calculations, enabling region-length calculations combined with duration or tempo.
• Added a setting to show or hide file size calculations.

### 2.0 — 2025-10-29

- Major speed and usability upgrade! No more tapping “Calculate” to see your answer. Show what we know! Results now appear instantly, and can be saved on the paper tape if you need them later. You’ll see what I mean, I hope you’ll like it.
- Share your results! You can create and share an image of any calculation. Just tap the new share icon at the bottom of the answer.
- And along with these major improvements we redesigned some parts of the app, not for your ears, but for your eyes.
- High-resolution calculations were always there; now you can actually see them. Just toggle the button.

### 1.7 — 2024-07-23

- Added tuning setting for people who want to experiment.
- Better UX and design, and the return of the + sign by popular demand.
- Better manual and startup tutorial.

### 1.6 — 2023-09-01

- BPM tap function reached precision-A status. More accurate than ever seen before. 
- Much improved UI coloring and layout.
- Better manual text.
- Fixed bug in Logic Length calculations.
- Many under the hood improvements and performance enhancements.

### 1.5 — 2023-03-10

- fix for background color in iOS 16.3 on some devices.

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## More apps by The RedHouse Apps

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- [Head Count +/-](https://appshunter.io/ios/app/head-count-plus/id1508346861)
- [Lucas' Clock](https://appshunter.io/ios/app/lucas-clock/id1529667779)
- [Earth Time Calc](https://appshunter.io/ios/app/earth-time-calc/id1549527232)

All apps by The RedHouse Apps: https://appshunter.io/developer/384363265

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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 2026-08-13.*