Audiofile Calc is a full-featured musical calculator and an indispensable utility for engineers, musicians, music students and teachers, producers, DJs, video and broadcast engineers and live sound engineers. Audiofile Calc contains 23 easy-to-use calculators.

Audiofile Calc is a 100% free app created by Audiofile, an industry-leading, boutique technology company building apps to power the world's musicians and engineers.

Calculators included in Audiofile Calc:

- Note Length
- Bar Length
- Song Length
- Beats to Tempo
- Time to Samples
- Samples to Time
- Compare Tempos
- Change Tempo
- Sum Times
- Subtract Times

- Note Name to…
- MIDI Note to…
- Frequency to…
- Wavelength to…

- Frames to Timecode
- Convert Timecode
- Change Timecode

- Compare Power
- Compare Voltage

- Distance to Time
- Time to Distance
- Sound Pressure Level (SPL)
- Panning

- File Size

What’s New

Version 3.6.0

Why not run Calc in an iPad sidebar or overlay? Well, now you can! Enjoy.

Ratings and Reviews

3.8 out of 5
4 Ratings
4 Ratings
818Pnice ,

Great app

I’ve had it in the past on previous devices. It comes in handy more than I thought.
But the numeric input is not functional in this version on my iPhone X.

evan.olcott ,

File Size calculation is wrong

Calculations with 32-bit depth are wrong.

Vdrumpro999 ,

A needed toolset

Dev updated description to point out app was limited, setting the expectation bar to the proper level.. You say 3 calcs in first part of description, that's what I expect. FREE IS free.. Many of the classic free web apps for similar calcs are flash based.

I DO like the thought of all these calcs together-- but give me a bulk buy vs. A la carte. I think I was most bummed about this app because I wished it existed not more than 5 hours before finding it in the store.. It was like a cosmic sign and blessing from above seeing it pop up in the store.. really a sucker punch when upon busting it out it wasn't as promoted (now at this point by me word of mouth)

Initial review:
Poor marketing model guys.. Next time, make the free version with two (useless nearly) calcs and paid one with all.. Your writeup says "included" but doesn't mention details about seperate purchases until the end.. You set your potential clients up for immediate disappointment..


Audiofile Engineering, LLC
8.2 MB

Requires iOS 9.3 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Rated 4+
© 2017 Audiofile Engineering, LLC


  • Family Sharing

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

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