Merp: Molecular Weight 4+

Calculate molar masses

Eric Lu

Designed for iPad

    • 3.7 • 3 Ratings
    • Free



Need the molecular weight of a revolutionary wonder-liquid? Or a bulky metal–organic framework?

No problem.
From everyday organics to complex solids, MERP makes it easy to sum the elements of a molecule.
Using the calculator, type a formula or tap in the counts of elements to build the molecule. Save the molecule to keep it around and see composition and per-molecule weight.

What’s New

Version 2.1

Updated tab bar icon

Ratings and Reviews

3.7 out of 5
3 Ratings

3 Ratings

elle o elle ,

Good for homework

Helped on homework but needs what the elements combined make for a compound

Rachel322 ,

Great app

Very useful and accurate

App Privacy

The developer, Eric Lu, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

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The following data may be collected but it is not linked to your identity:

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  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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