This product was not featured by Product Hunt yet. It will not be visible on their landing page and won't be ranked (cannot win product of the day regardless of upvotes).
Trusty Calculator is a free library of 433 calculators for construction, finance, math, education, business, health, and unit conversion. Each tool aims to show the formula, assumptions, units, worked examples, and primary sources behind the result. No account is required.
I built Trusty Calculator because many calculator pages return a number without making it easy to understand where that number came from. The site now includes 433 free tools across practical categories, with formulas, assumptions, units, examples, and sources where applicable. I would especially value feedback on which calculator topics need clearer explanations and which workflows still feel incomplete.
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About Trusty Calculator on Product Hunt
“Transparent calculators for practical decisions”
Trusty Calculator was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #160 on the daily leaderboard. Trusty Calculator is a free library of 433 calculators for construction, finance, math, education, business, health, and unit conversion. Each tool aims to show the formula, assumptions, units, worked examples, and primary sources behind the result. No account is required.
Trusty Calculator was featured in Education (79.1k followers) on Product Hunt. Together, these topics include over 32.9k products, making this a competitive space to launch in.
Who hunted Trusty Calculator?
Trusty Calculator was hunted by 帆 胡. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
Want to see how Trusty Calculator stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
帆 胡