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Maker
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Hey Product Hunt! 👋
I built CalculatorBoom because I was tired of visiting calculator sites cluttered with ads, popups, and slow-loading pages just to convert cm to inches or calculate a tip.
The goal was simple: fast, clean calculators that actually work well on mobile — no clutter, no distractions, just the number you need in seconds.
Right now it covers unit conversion (length, weight, temperature, and more) and math calculators, and I'm actively expanding it with more tools and multi-language support.
Would love your feedback — especially if there's a specific calculator you wish existed but can't find anywhere!
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Maker
Thanks everyone for the thoughtful feedback! 🙏
A history/recent-calculations feature is something we're actively analyzing to figure out the best way to do it.
Dark mode is already live (toggle in the header).
Really glad the no-sign-up, instant-load approach is landing well — that's a deliberate choice we want to keep.
Appreciate everyone taking the time to write this up — it's genuinely shaping what we build next.
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Would love to see a history feature that saves my recent calculations on the device, since right now I lose everything when I refresh the page. Also the ability to copy results with one click would save me a lot of time.
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A dark mode toggle would be great for late night calculations, especially the finance ones when I'm reviewing budgets after work. Also the ability to save recent calculations or favorite the ones I use often would save me from retyping the same mortgage formula every week.
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One thing that would make this way more useful for me is a history panel that saves your recent calculations, so you don't have to redo them if you switch tabs or close the browser.
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Love that there's zero sign-up friction here. Just click and calculate, which feels increasingly rare these days. The range of categories from finance to fitness in one place is nicely done too.
Report
The no-sign-up approach is so refreshing, especially for something as quick as a unit conversion. Love that the interface feels uncluttered and actually loads instantly.
Thanks everyone for the thoughtful feedback! 🙏
A history/recent-calculations feature is something we're actively analyzing to figure out the best way to do it.
Dark mode is already live (toggle in the header).
Really glad the no-sign-up, instant-load approach is landing well — that's a deliberate choice we want to keep.
Appreciate everyone taking the time to write this up — it's genuinely shaping what we build next.
Would love to see a history feature that saves my recent calculations on the device, since right now I lose everything when I refresh the page. Also the ability to copy results with one click would save me a lot of time.
A dark mode toggle would be great for late night calculations, especially the finance ones when I'm reviewing budgets after work. Also the ability to save recent calculations or favorite the ones I use often would save me from retyping the same mortgage formula every week.
One thing that would make this way more useful for me is a history panel that saves your recent calculations, so you don't have to redo them if you switch tabs or close the browser.
Love that there's zero sign-up friction here. Just click and calculate, which feels increasingly rare these days. The range of categories from finance to fitness in one place is nicely done too.
The no-sign-up approach is so refreshing, especially for something as quick as a unit conversion. Love that the interface feels uncluttered and actually loads instantly.