I Got Tired of Calculator Sites, So I Built My Own
I’ve always found that online calculators tend to have bad UIs, especially on mobile. Most of the calculator websites I’ve come across use outdated and inconvenient ways of inputting data, or they format the results in confusing ways. I’ve noticed that fraction calculators (especially mixed fractions) are terrible to use, even on desktop. I haven’t built one of those yet, but it’s something I’m planning to tackle soon. This is a project I’ve always wanted to work on, but I’m relatively new to this space. So far, I’ve created a collection of simple calculators focused on math and finance. I’d…
In plain words
This is a collection of math and finance calculators designed with improved user interfaces, particularly for mobile devices. The creator built it to address usability problems found in existing calculator websites, which often have outdated input methods and confusing result displays. The site currently offers simple calculators and plans to add fraction calculator tools. It targets users who want straightforward, mobile-friendly calculation tools without cluttered interfaces.
written from the facts on this page · September 2026
From the sources
In the maker’s words, at launch
I’ve always found that online calculators tend to have bad UIs, especially on mobile. Most of the calculator websites I’ve come across use outdated and inconvenient ways of inputting data, or they format the results in confusing ways. I’ve noticed that fraction calculators (especially mixed fractions) are terrible to use, even on desktop. I haven’t built one of those yet, but it’s something I’m planning to tackle soon. This is a project I’ve always wanted to work on, but I’m relatively new to this space. So far, I’ve created a collection of simple calculators focused on math and finance. I’d really appreciate any feedback on the UI/UX or anything else you think could be improved. You can try it here: https://CalculateHow.com
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