We are a group of IT professionals passionate about building free, reliable, and easy-to-use tools for everyday life. The main purpose of ToolsCalculator.com is to offer a wide range of online calculators that simplify tasks for users around the world—whether for personal, academic, professional, or casual use.
This website was created to serve as a comprehensive hub of practical calculators grouped into four main categories: Finance, Fitness, Math, and Everyday Tools. All calculators on this site are designed and developed in-house with a focus on accuracy, clarity, and accessibility.
Some tools incorporate open-source JavaScript components licensed under reputable open-source agreements. Over 90% of our calculators are based on formulas and models sourced from textbooks and academic publications. For example, the loan, compound interest, and BMI calculators all rely on widely accepted industry-standard formulas. In cases where multiple interpretations exist, such as with ideal weight or body fat percentage, we include results from multiple popular methods to give users a more rounded view.
Calculators intended purely for entertainment (e.g., compatibility tools) are based on custom internal logic for fun purposes only. Where relevant, the output of our financial tools has been reviewed by experienced financial advisors, and health-related calculators have been vetted by local certified healthcare professionals to ensure content quality and responsibility.
ToolsCalculator.com is independently owned and operated by a small tech team focused on open access and practical solutions for all.