About Us

We are a team of IT professionals passionate about developing high-quality, free tools and resources for the web. Our primary goal is to offer an extensive collection of free online calculators designed for public convenience.

The calculators here are categorized into following sections: financial, health & fitness, math, education, Human Resource, taxation, date and time and miscellaneous. All tools are developed internally, though some incorporate open-source JavaScript libraries under various licenses. Over 90% of the calculators rely on established formulas or equations from academic sources, such as those used in the mortgage and BMI calculators. When formulas are debated, we present results from multiple popular methods—as demonstrated in the Ideal Weight Calculator. Tools like the love calculator, intended purely for entertainment, utilize proprietary algorithms. Financial calculators undergo review by certified financial advisors affiliated with leading personal finance firms, while health-related calculators are vetted and approved by local medical professionals. Nearly all explanatory content is crafted internally, with minimal material sourced from wikipedia.org under the GNU Free Documentation License. Financial content is authored and reviewed by our dedicated financial team, and health-related descriptions are validated by medical experts.

This site is managed and maintained by CalculatorsHaven.