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).
Product upvotes vs the next 3
Waiting for data. Loading
Product comments vs the next 3
Waiting for data. Loading
Product upvote speed vs the next 3
Waiting for data. Loading
Product upvotes and comments
Waiting for data. Loading
Product vs the next 3
Loading
CalculatorPlanet
Free calculators that show their work and explains its math
CalculatorPlanet is a free, growing library of calculators across 18 categories Tax & Salary, Health, Finance, Academic, Construction, Gaming, Agriculture, and more. Every tool shows its formula, works a real example, and cites a source for anything beyond arithmetic. No signup, no paywall. State paycheck calculators compute real local and county tax, not a flat federal estimate. New calculators and deeper guides ship inside these categories regularly, not new categories tacked on.
I kept running into the same annoyance with calculator sites, you type in a number, get a number back, and just have to trust it. No formula, no explanation, sometimes not even a source. That's fine for a tip calculator. It's not fine when the number touches your paycheck or your health.
So the rule for CalculatorPlanet from day one was simple, show the formula in plain English, walk through a real worked example, cite a source for anything that isn't pure arithmetic. The paycheck calculators ended up being the real test of that rule, because most sites like this stop at a rough federal withholding estimate and call it done. That was never going to be good enough, state, county, and city tax all change the real number, so the calculator needed to actually compute them, not just mention that they exist.
That's basically been the whole story since: build something, then find the gap. A tax bracket that was wrong. An input that was missing. A local tax that got disclosed in a footnote instead of actually being calculated. Every time testing turned one of those up, it got fixed for real, not noted as a known limitation and left alone. That's still the bar. Nothing ships until the number behind it is one I'd actually trust with my own paycheck.
If you try it and find a calculator where the math doesn't hold up, genuinely tell me. That's the feedback I want most.
About CalculatorPlanet on Product Hunt
“Free calculators that show their work and explains its math”
CalculatorPlanet was submitted on Product Hunt and earned 1 upvotes and 1 comments, placing #157 on the daily leaderboard. CalculatorPlanet is a free, growing library of calculators across 18 categories Tax & Salary, Health, Finance, Academic, Construction, Gaming, Agriculture, and more. Every tool shows its formula, works a real example, and cites a source for anything beyond arithmetic. No signup, no paywall. State paycheck calculators compute real local and county tax, not a flat federal estimate. New calculators and deeper guides ship inside these categories regularly, not new categories tacked on.
On the analytics side, CalculatorPlanet competes within Productivity, Education and Finance — topics that collectively have 746.7k followers on Product Hunt. The dashboard above tracks how CalculatorPlanet performed against the three products that launched closest to it on the same day.
Who hunted CalculatorPlanet?
CalculatorPlanet was hunted by Asif Rajpoot. 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.
For a complete overview of CalculatorPlanet including community comment highlights and product details, visit the product overview.
Asif Rajpoot