Unravel complex steel calculations with this essential iPad and iPhone application for flat-rolled steel buyers. Unravel: Flat-Rolled Steel Calculator makes it easy to verify steel coil and sheet specs. Calculate the weight of a steel coil without a scale, convert gauges to decimals instantly, and find the number of sheets in a bundle. Convert easily between imperial and metric units for both coil and sheet measurements. Input the cost per CWT to compare prices. Works with all coated and uncoated steel. Whether galvanized, aluminized, prepainted or cold rolled material, use this app for quick and simple weight, cost and yield calculations.

Use this app to:
- Calculate coil and bundle weight without a scale
- Verify that your purchase is to spec
- Find the area, total length or price per square foot of material
- Convert between gauges and decimals
- Convert between imperial and metric units

There are several critical variables that drive the true cost of flat-rolled steel, including weight, thickness and zinc coating. Use the Unravel Flat-Rolled Steel Calculator to verify that you have the right steel for the job. To learn more about finding the true cost of steel, visit Majestic Steel USA’s website at

What’s New

Version 5.3.2

Fixed registration issue

Ratings and Reviews

4.9 out of 5
7 Ratings

7 Ratings

briggsmetal ,

Great App

I think this is a great app, can't live without it.

xstek99 ,

Excellent ease of use

It would be a nice feature to have the coil data pass over to the sheet data, so I wouldn't have to reenter width, gauge, and length to find number of sheets. I'd also like to override material ##/ft from mill certs for a particular purpose, rather than just view the acceptable range. I've been working on this app myself, now I can get on with my list. Thanks,

Steelguy425 ,

Excellent idea

The modern workforce requires us to continually do more with less. I have been carrying a coil calculator with me as I sold steel for 25 years. Not anymore!

App Privacy

The developer, Majestic Steel USA, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


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

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